Description Indication Contraindications Dosage Mechanism of Action Elimination Adverse reactions Precautions
ChemicalBook > CAS DataBase List > 5-Azacytidine

5-Azacytidine

Description Indication Contraindications Dosage Mechanism of Action Elimination Adverse reactions Precautions
Product Name
5-Azacytidine
CAS No.
320-67-2
Chemical Name
5-Azacytidine
Synonyms
AZACITIDINE;AZACYTIDINE;Vidaza;mylosar;5-AC;5 AZC;5-AZCR;5-AZAC;LADAKAMYCIN;5-Azacitidine
CBNumber
CB4383338
Molecular Formula
C8H12N4O5
Formula Weight
244.2
MOL File
320-67-2.mol
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5-Azacytidine Property

Melting point:
226-232 °C (dec.)(lit.)
alpha 
40 º (C=1, H2O 22 ºC)
Boiling point:
387.12°C (rough estimate)
Density 
1.4287 (rough estimate)
refractive index 
1.6590 (estimate)
storage temp. 
-20°C
solubility 
Soluble in DMSO (up to 25 mg/ml), or in Water (up to 12 mg/ml).
pka
13.46±0.70(Predicted)
form 
lyophilized powder
color 
White to Off-white
Water Solubility 
0.5-1.0 g/100 mL at 21 ºC
Merck 
14,887
BRN 
620461
Stability:
Stable for 2 years from date of purchase as supplied. Solutions in DMSO or distilled water may be stored at -20° for up to 1 month.
InChIKey
NMUSYJAQQFHJEW-WGDKFINWSA-N
LogP
-2.191 (est)
CAS DataBase Reference
320-67-2(CAS DataBase Reference)
IARC
2A (Vol. 50) 1990
EPA Substance Registry System
Azacitidine (320-67-2)
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Safety

Hazard Codes 
T
Risk Statements 
45-46-22
Safety Statements 
53-22-36/37/39-45
WGK Germany 
3
RTECS 
XZ3017500
F 
10-23
HS Code 
29349990
Hazardous Substances Data
320-67-2(Hazardous Substances Data)
Toxicity
LD50 in mice (mg/kg): 115.9 i.p.; 572.3 orally (Palm, Kensler)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H302Harmful if swallowed

H341Suspected of causing genetic defects

H350May cause cancer

H372Causes damage to organs through prolonged or repeated exposure

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P202Do not handle until all safety precautions have been read and understood.

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P273Avoid release to the environment.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P308+P313IF exposed or concerned: Get medical advice/attention.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
A1287
Product name
5-Azacytidine
Purity
Hybri-Max?, γ-irradiated, lyophilized powder, BioXtra, suitable for hybridoma
Packaging
1vial
Price
$29.1
Updated
2024/03/01
Sigma-Aldrich
Product number
1045520
Product name
Azacitidine
Purity
United States Pharmacopeia (USP) Reference Standard
Packaging
150mg
Price
$436
Updated
2024/03/01
TCI Chemical
Product number
A2033
Product name
5-Azacytidine
Purity
>98.0%(T)
Packaging
1g
Price
$202
Updated
2024/03/01
TCI Chemical
Product number
A2033
Product name
5-Azacytidine
Purity
>98.0%(T)
Packaging
100mg
Price
$39
Updated
2024/03/01
Alfa Aesar
Product number
J64159
Product name
5-Azacytidine, 98%
Packaging
1g
Price
$63.65
Updated
2024/03/01
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5-Azacytidine Chemical Properties,Usage,Production

Description

Azacytidine also referred to as Azacytidine and 5-azacytidine (brand name: Vidaza) is an anti-cancer chemotherapy medication. The drug is classified as demethylation and antimetabolite agent. Azacytidine acts by inhibiting the growth and proliferation of cancer cells in the body. The drug is indicated for the treatment of specific types of blood cell disorders and bone marrow cancers.

Indication

Azacytidine is prescribed for treating patients with secondary types of myelodysplastic syndrome, including refractory anemia that presents in the form of ringed sideroblasts (especially if it necessitates transfusion), or it presents itself alongside thrombocytopenia or neutropenia. Also, it is used in treating refractory anemia accompanied by excess blasts, refractory anemia characterized by excess blasts in transition (currently classified as chronic myelogenous leukemia that is accompanied by multilineage dysplasia), and acute myelomonocytic leukemia.

Contraindications

Azacytidine is contraindicated in patients who have acute malignant hepatic tumors or known hypersensitivity to the drug or mannitol.

Dosage

For treatment of patients with myelodysplastic syndrome, the initial dose is 75mg/m2 administered intravenously or subcutaneously in daily doses for 7 days in 4-week intervals. The recommended maintenance dose may be increased to 100mg/m2 if there are no noteworthy effects after 2 treatment cycles and if the patient does not experience additional toxicity other than vomiting and nausea.
Patients should undergo treatment that lasts for a minimum of 4 cycles. However, a partial or complete response may necessitate additional cycles other than the recommended 4 cycles. Treatment should not be discontinued if the patient is experiencing positive outcomes from the therapy.

Mechanism of Action

5-Azacytidine is a chemical analog that is closely linked with the cytosine nucleoside in ribonucleic acid (RNA) and deoxyribonucleic acid (DNA). Azacytidine influences antineoplastic activity through two main mechanisms; suppression of DNA methyltransferase when administered in low doses, which results in hypomethylation of DNA, and unmediated cytotoxicity in anomalous hematopoietic cells present in the bone marrow by its integration into RNA and DNA at high doses which causes the death of the cells.
Since Azacytidine is considered a ribonucleoside, it integrates itself into RNA to a greater extent than DNA. The integration into RNA results in the dissimulation of malfunctioning methylation, polyribosomes, and recipient function of replicated RNA, and suppression of protein production.
The integration of Azacytidine into DNA results in a covalent bond that is characterized by DNA methyltransferases, which inhibits DNA synthesis and resultant cytotoxicity.

Elimination

Intravenous administration of the radioactive form of the drug to cancer patients results in 85% elimination of Azacytidine through urinary excretion. Fecal excretion of the radioactive dose takes place in <1% of the administered drug in 3 days. The mean elimination of radioactivity through urine accounts for 50% of 14C-azacytidine administration.

Adverse reactions

Common side effects associated with Azacytidine in more than 30% of the patients include low white blood cell count, fever, vomiting, low platelet count, anemia, and nausea. At nadir, 10-17days of chemotherapy cycles, one may also experience petechiae, ecchymosis, constipation, redness at the injection site and fatigue.
Other side effects associated with Azacytidine in about 10-29% of the patients may include insomnia, depression, itching, upper respiratory infection, hypokalemia, anxiety, skin rash, abdominal pain, weight loss, nosebleed, chest pain, swelling on the ankles, dizziness, confusion, back pain, sore throat, poor appetite, headache, myalgia and arthralgia, pain at the injection site, chills, weakness, shortness of breath and coughs.
It is important to contact health care provider if one is experiencing diarrhea (4-6 episodes in 24 hours). A patient should also contact the doctor in case he/she has nausea that interferes with their ability to eat. If one has bloodstained urine, constipation that persists regardless of laxative use, extreme fatigue, tarry or bloodstained stools, vomiting (4-5 episodes in a span of 24 hours), signs of infection such as productive coughs or painful urination, and inability to eat or take fluids for more than 24 hours.

Precautions

A patient should notify their healthcare provider if they are taking any other medications which may include herbal remedies, vitamins, and over-the-counter medications before receiving an Azacytidine prescription. A patient should not receive any vaccination or immunization while they are on Azacytidine treatment.
Breastfeeding is not recommended while one is taking this drug. A patient should also inform their healthcare provider if they are pregnant or intending to get pregnant before starting Azacytidine treatment.
Azacytidine may cause neutropenia, anemia, and thrombocytopenia. Since the drug may result in hepatotoxicity amongst patients with acute hepatic impairment, caution should be taken during the administration of Azacytidine in patients with liver disease.
Renal toxicity that may range from renal failure to increased serum creatinine and death has been reported amongst patients who have been accorded intravenous treatment with Azacytidine in combination treatment with other chemotherapeutic medications for nonMDS cases.
The drug may also result in acute tumor lysis syndrome for patients with MDS. Azacytidine poses a threat to a developing embryo/fetus based on its mechanism of action.

Description

5-Azacytidine is an analog of the nucleoside cytidine which can be incorporated into DNA and RNA. 5-Azacytidine acts as an epigenetic modifier by incorporating into DNA where it irreversibly binds to DNA methyltransferases, thus inhibiting their activity.
Azacitidine is an antineoplastic agent launched for the treatment of myelodysplastic syndrome (MDS). MDS is a group of closely related diseases caused by abnormal blood-forming stem cells of the bone marrow. Azacitidine is indicated for the treatment of all five subtypes of MDS, which consist of refractory anemia, refractory anemia with ringed sideroblasts, refractory anemia with excess blasts, refractory anemia with excess blasts in transformation, and chronic myelomonocytic leukemia.

Chemical Properties

White crystalline solid or powder. Soluble in dimethyl sulfoxide, slightly soluble in ethanol:water (50:50), propylene glycol, polyethylene glycol; slightly soluble in water, saturated octanol aqueous solution, 5% glucose injection, N-methyl-2-pyrrolidone, 0.9% sodium chloride injection and 5% polysorbate 80 aqueous solution; insoluble in acetone, ethanol and methyl ethyl ketone.

Originator

Pharmion (US)

Uses

A potent growth inhibitor and cytotoxic agent. It acts as a demethylating agent by inhibiting DNA methyltransferase

Uses

Antineoplastic;'Antimetabolite

Uses

antianginal

Uses

5-Azacytidine, its incorporation into RNA alters RNA synthesis and processing, and results in inhibition of protein synthesis. It has been used as a cancer chemotherapeutic agent. It is a powerful bacteriostatic, antitumor, and mutagenic agent; it also exhibits immunosuppressive, antimitotic, radioprotective, and virostatic effects.

Definition

ChEBI: A N-glycosyl-1,3,5-triazine that is 4-amino-1,3,5-triazin-2(1H)-one substituted by a beta-D-ribofuranosyl residue via a N-glycosidic linkage.

Manufacturing Process

A mixture of 1-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-4-methylthio-1,2- dihydro-1,3,5-triazin-2-one (0.5875 g), absolute methanol (5 ml) and a normal methanolic sodium methoxide solution (1.2 ml) is stirred at room temperature with the exclusion of atmospheric moisture (a guard tube filled with potassium hydroxide pellets is fitted to the reaction vessel). The starting compound passes into solution in the course of 5 min. The resulting solution is allowed to stand at room temperature for 45 min and then the cations are removed by passage of the solution through a column packed with 10 ml of a weakly acidic cation exchange resin in the H+ form prewashed with water and methanol. The methanolic effluent (60 ml) is evaporated under reduced pressure at 30°C, the residue is dissolved in methanol (20 ml) and the solution once again is evaporated and the 1-β-D-ribofuranosyl-4-methoxy-1,2- dihydro-1,3,5-triazin-2-one was obtained.
The residual crude crystalline 1β-D-ribofuranosyl-4-methoxy-1,2-dihydro- 1,3,5-triazin-2-one is dissolved in a 10% solution of dry ammonia in absolute methanol (4 ml) and the whole reaction mixture is allowed to stand in a stoppered flask for 30 min at room temperature (the product begins to deposit in the course of 5 min) and for 12 h in a refrigerator at -10°C. The resulting 5-azacytidine is collected with suction, washed with methanol and dried under reduced pressure. A yield of 0.216 g (88.6%) of 5-azacytidine, that is [1-β-D-ribofuranosyl-4-amino-1,3,5-triazin-2(1H)-one], melting point 232°-234°C (dec.), is obtained.

brand name

Vidaza (Pharmion).

Therapeutic Function

Antineoplastic

Biological Functions

Azacitidine is given subcutaneously for the treatment of myelodysplastic syndrome, and serum levels generally are maximized within 30 minutes. The parent drug and its metabolites are excreted in the urine. Azacitidine is carcinogenic and teratogenic in rodents, and leukopenia, thrombocytopenia, and neutropenia are the most common reasons for drug discontinuation or dosage reduction.

General Description

White crystalline powder.

Air & Water Reactions

Slightly water soluble. Unstable in solution.

Reactivity Profile

5-Azacytidine is sensitive to light (may discolor). 5-Azacytidine is sensitive to oxidation. 5-Azacytidine is unstable in solution. 5-Azacytidine undergoes hydrolysis in aqueous buffers. 5-Azacytidine is incompatible with strong oxidizers.

Fire Hazard

Flash point data for 5-Azacytidine are not available; however, 5-Azacytidine is probably combustible.

Biological Activity

DNA methyltransferase inhibitor. Incorporates into DNA forming covalent adducts with cellular DNMT1, depleting enzyme activity. Induces demethylation and reactivation of silenced genes. Improves the efficiency of reprogramming of stem cells.

Biochem/physiol Actions

5-Azacytidine is a deoxycytidine analog and a demethylating agent. It acts as a potential antineoplastic agent for acute myelogenous leukemia. 5-Azacytidine activates repressed genes by inhibiting DNA methylation. 5-Azacytidine also affects protein synthesis by altering the RNA function and stability.

Clinical Use

Antineoplastic agent:

Treatment of people not eligible for stem cell transplants with myelodysplastic syndromes, chronic myelomonocytic leukaemia or acute myeloid leukaemia

Safety Profile

Confirmed carcinogen with experimental carcinogenic, neoplastigenic, tumorigenic data. Poison by ingestion, intravenous, and intraperitoneal routes. Human systemic effects by intravenous route: nausea, vomiting and dlarrhea, reduction in white cell count (luekopenia and agranulocytosis). An experimental teratogen. Other experimental reproductive effects. Human mutation data reported. A skin irritant. When heated to decomposition it emits toxic fumes of NOx.

Synthesis

The triazine ring of azacitidine is sensitive to water; this characteristic has made the synthesis of azacitidine a challenge, especially in manufacturing at commercial scale. A number of reports have appeared in order to avoid the use of water; however, these methods all have additional problems that render them undesirable for the large scale synthesis. A recent improved synthesis is depicted in the Scheme. 5- Azacytosine (1) was bis-silylated with HMDS in the presence of (NH4)SO4 to furnish trimethylsilylated azacytosine (2) in greater than 90% yield. Coupling of silylated azacytosine 2 with 1,2,3,5-tetra-O-acetyl-b-Dribofuranose (3) in DCM in the presence of TMS-triflate provided protected 5-azacitidine 4. The acetyl groups were then removed by using NaOMe in MeOH at rt. The crude azacitidine was crystallized from DMSO/MeOH to provide pure azacitidine (I).

Potential Exposure

A growth inhibitor (DNA methyltransferase inhibitor). A cytotoxic agent and chemotherapeutic agent used to treat angina pectoris, an ischemic heart disease symptom. Occupational exposure to azacitidine could occur among health professionals and support staff (including custodians) by dermal contact, inhalation, or accidental ingestion during drug preparation or administration or cleanup of medical waste, including disposal of excretions from treated patients (Zimmerman et al. 1981, NIOSH 2004). The National Occupational Exposure Survey (conducted from 1981 to 1983) estimated that 1069 healthservices workers, including 698 women, potentially were exposed to azacitidine. Azacitidine may be produced synthetically or isolated from the bacterium Streptoverticillium ladakanus . Incompatibilities: Azacitidine is Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Contact with alkali metals, nitrides, and strong reducing agents such as hydrides may form flammable and/or toxic gases. May react with anhydrides forming acids and esters, generating noticeable heat, and also with oxoacids and carboxylic acids to form esters plus water, but the heat of reaction in the latter case typically is low. Keep away from isocyanates and epoxides; may initiate their polymerization. Azacitidine is sensitive to light and oxidation and unstable in solution. It undergoes hydrolysis in aqueous buffers.

Carcinogenicity

Azacitidine is reasonably anticipated to be a human carcinogen based on sufficient evidence of carcinogenicity from studies in experimental animals.

Metabolism

Azacitidine undergoes spontaneous hydrolysis and deamination mediated by cytidine deaminase. Following IV administration of radioactive azacitidine to 5 cancer patients, the cumulative urinary excretion was 85% of the radioactive dose. Faecal excretion accounted for <1% of administered radioactivity over three days. Mean excretion of radioactivity in urine following SC administration of [14C]-azacitidine was 50%.

storage

Room temperature

Shipping

UN3249 Medicine, solid, toxic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

Incompatibilities

Azacitidine is Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Contact with alkali metals, nitrides, and strong reducing agents such as hydrides may form flammable and/or toxic gases. May react with anhydrides forming acids and esters, generating noticeable heat, and also with oxoacids and carboxylic acids to form esters plus water, but the heat of reaction in the latter case typically is low. Keep away from isocyanates and epoxides; may initiate their polymerization. Azacitidine is sensitive to light and oxidation and unstable in solution. It undergoes hydrolysis in aqueous buffers.

Waste Disposal

It is inappropriate and possibly dangerous to the environment to dispose of expired or waste drugs and pharmaceuticals by flushing them down the toilet or discarding them to the trash. Household quantities of expired or waste pharmaceuticals may be mixed with wet cat litter or coffee grounds, double-bagged in plastic, discard in trash. Larger quantities shall carefully take into consideration applicable DEA, EPA, and FDA regulations. If possible return the pharmaceutical to the manufacturer for proper disposal being careful to properly label and securely package the material. Alternatively, the waste pharmaceutical shall be labeled, securely packaged and transported by a state licensed medical waste contractor to dispose by burial in a licensed hazardous or toxic waste landfill or incinerator.

References

1) Giraldo et al. (2011), Inhibition of DNA Methylation in somatic cells ; Methods Mol. Biol., 791 145 2) Brueckner et al. (2005), Epigenetic reactivation of tumor suppressor genes by a novel small-molecule inhibitor of human DNA Methyltransferases; Cancer Res., 65 6305 3) Mikkelsen et al. (2008), Dissecting direct reprogramming through integrative genomic analysis; Nature, 454 49 4) Qian et al. (2011), 5-Azacytidine induces cardiac differentiation of human umbilical cord-derived mesenchymal stem cells by activating extra cellular regulated kinase; Stem Cells Dev., 21 67 5) Kiziltepe et al. (2007), 5-Azacytidine, a DNA Methyltranserase inhibitor, induces ATR-mediated DNA double-strand break responses, apoptosis, and synergistic cytotoxicity with doxorubicin and bortezomib against multiple myeloma cells; Mol. Cancer Ther., 6 1718

5-Azacytidine Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from 5-Azacytidine manufacturers

WUHAN FORTUNA CHEMICAL CO., LTD
Product
5-Azacytidine 320-67-2
Price
US $0.00-0.00/KG
Min. Order
10g
Purity
98%min
Supply Ability
1000G
Release date
2021-07-05
shandong perfect biotechnology co.ltd
Product
Azacitidine 320-67-2
Price
US $0.00/g
Min. Order
1g
Purity
98% HPLC
Supply Ability
100kg
Release date
2023-08-14
Hebei Weibang Biotechnology Co., Ltd
Product
5-Azacytidine 320-67-2
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2024-11-05

320-67-2, 5-AzacytidineRelated Search:

Cytidine 5-Azacytosine Cytarabine 3-Aminophenol 6-Aminocaproic acid 1-beta-D-Arabinofuranosylcytosine hydrochloride Cytidine-5'-triphosphate disodium salt dihydrate 1,3,5-Triazine Cytosine Tris(hydroxymethyl)aminomethane Glycine 5-Fluorocytidine ALTRENOGEST Fluorocytosine Ancitabine 5-Aza-2'-deoxycytidine 5-AZACYTOSINE 2'',3'',5''-Triacetyl -azacytidine Azacitidine

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