Organic alkali Fluorouracil Chemical property Uses Production methods
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Uracil

Organic alkali Fluorouracil Chemical property Uses Production methods
Product Name
Uracil
CAS No.
66-22-8
Chemical Name
Uracil
Synonyms
PYRIMIDINE-2,4(1H,3H)-DIONE;PYRIMIDINE-2,4-DIOL;Ura;2,4-DIHYDROXYPYRIMIDINE;2,4(1H,3H)-PYRIMIDINEDIONE;Uracyl;Uracll;Cellocidin;2,6-Dihydroxypyrimidine;1H-Pyrimidine-2,4-dione
CBNumber
CB8376824
Molecular Formula
C4H4N2O2
Formula Weight
112.09
MOL File
66-22-8.mol
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Uracil Property

Melting point:
>300 °C (lit.)
Boiling point:
209.98°C (rough estimate)
Density 
1.4421 (rough estimate)
refractive index 
1.4610 (estimate)
storage temp. 
2-8°C
solubility 
Aqueous Acid (Slightly), DMSO (Slightly, Heated, Sonicated), Methanol (Slightly)
form 
Crystalline Powder
pka
9.45(at 25℃)
color 
White to slightly yellow
Water Solubility 
SOLUBLE IN HOT WATER
Merck 
14,9850
BRN 
606623
Stability:
Stable. Incompatible with strong oxidizing agents.
InChIKey
ISAKRJDGNUQOIC-UHFFFAOYSA-N
LogP
-1.037 (est)
CAS DataBase Reference
66-22-8(CAS DataBase Reference)
NIST Chemistry Reference
Uracil(66-22-8)
EPA Substance Registry System
Uracil (66-22-8)
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Safety

Hazard Codes 
Xi
Safety Statements 
22-24/25
WGK Germany 
2
RTECS 
YQ8650000
TSCA 
Yes
HS Code 
29335990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P337+P313IF eye irritation persists: Get medical advice/attention.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
PHR1581
Product name
Uracil
Purity
Pharmaceutical Secondary Standard; Certified Reference Material
Packaging
100mg
Price
$105
Updated
2024/03/01
Sigma-Aldrich
Product number
1705753
Product name
Uracil
Purity
United States Pharmacopeia (USP) Reference Standard
Packaging
15mg
Price
$447
Updated
2024/03/01
TCI Chemical
Product number
U0013
Product name
Uracil
Purity
>98.0%(HPLC)(T)
Packaging
25g
Price
$26
Updated
2024/03/01
TCI Chemical
Product number
U0013
Product name
Uracil
Purity
>98.0%(HPLC)(T)
Packaging
100g
Price
$60
Updated
2024/03/01
Alfa Aesar
Product number
A15570
Product name
Uracil, 99+%
Packaging
50g
Price
$48.5
Updated
2024/03/01
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Uracil Chemical Properties,Usage,Production

Organic alkali

Uracil is an organic alkali, and is one of the four major bases in RNA. It is a major component of the pyrimidine composition in ribonucleic acid (RNA) as well as in various kinds of uridines. It can connect with ribose to generate UMP whose triphosphate compound being UTP. UTP is the precursor form of uracil in RNA biosynthesis. UTP also acts as a coenzyme to be involved in the biosynthesis of certain sugars. Uracil can block the degradation effect of tegafur, and thus increasing the concentration of fluorouracil which enhance the anti-cancer effects. Fluorouracil has similar clinical indications as uracil. It is mainly used for treating digestive cancer, breast cancer and thyroid cancer. Combination with mitomycin has a good efficacy on treating advanced gastric cancer. Laboratory synthesizes uracil through the cyclization reaction between ethyl malonyl and urea for pharmaceutical and biochemical research.
Uracil has tautomerism effect:

Keto (2,4-2 CPCC) enol (2,4-2-hydroxy pyrimidine) in mainly exist in the form of ketone inside biological cells.
Nature uracil is presented mainly in marine organisms, particulate matter and sea lysate. It is treated as life indicator in the field of organic geochemistry.
Pyrimidine refers to the hexaheterocyclic compound with two nitrogen atoms in 1,3-position of the benzene ring, and it, together with pyridazine and pyrazine, are isomers of each other. Pyrimidine has a unique UV spectrum due to the presence of conjugated double bonds in its structure. Pyrimidine has a lower basicity and a weaker lectrophilic substitution reaction than pyridine. But it is more prone to have nucleophilic substitution. Derivatives of pyrimidine are widely distributed in nature, including vitamin B1, uracil, thymine, and cytosine which all containing a pyrimidine structure.

Fluorouracil

Fluorouracil, briefly referred as FU, is currently one of the most commonly used anti-cancer drug. It is white crystals with pKa = 8.1, m.p.282~283 °C. It is slightly soluble in water (12mg/ml at 25 °C) and ethanol, but insoluble in chloroform and ether. It is easily soluble in diluted acid and alkali. It is hydrolyzed in the presence of strong base but is stable in normal saline. Due to the introduction of a strong electrically fluorine atoms, the acidity of Fu is 30 times higher than its parent, uracil. The injection of Fu usually is an aqueous solution with pH 9.0 adjusted by sodium hydroxide. It is sensitive to light and easy to crystallize when stored at low temperatures or prolonged room temperature.
According to the stronger ability of tumor tissue of rats in utilizing pyrimidine than normal tissue n, in 1957, Duschinsky and Heidelbergere designed and replace the 5-hydrogen in uracil to fluorine with similar size and generated Fu, as an anti-metabolite of uracil to achieve selective anticancer effects. FU has inhibitory effects on many kinds of animal transplanted tumors such as mouse leukemia L1210, L615, and adenocarcinoma 755. Tumor cells has no cross-resistance to it and other commonly used anti-cancer drugs such as cytarabine, methotrexate, mercaptopurine, cyclophosphamide, and carmustine.
FU is converted into 5-fluoro-deoxy-uridine monophosphate (FDUMP) and 5-fluorouracil nucleoside triphosphate (FUTP) in tissues. FDUMP inhibits the thymidylate synthase (TS) via forming compound with TS and 5,10-methenyltetrahydrofolate, thus resulting in a lack of intracellular thymine nucleotide and further inhibition of DNA synthesis, finally leading to cell death. On the other hand, FUTP is incorporated into RNA as the substrate of RNA polymerase substrate and affect the normal synthesis and function of RNA. In tissue culture, supplement of thymidine (TdR) can reverse the FU cytotoxicity, so that it has been realized for many years that the impact on DNA is the primary growth-inhibitory mechanism of FU. However, it was found that TdR didn’t completely reverse the cytotoxicity of FU, and the combination of FU and TdR significantly improved the FU’s incorporation into RNA and its anti-cancer effect. After culturing together of L1210 leukemia cells with 6-H3-5FU for 22 hours, it was found the existence of 80 fmol of FDUMP-TS-5,10CH2-H4 folic acid complexes in 106 cell while 400 fmol of FU bound to RNA. This emphasizes the importance of FU’s incorporation into RNA FU for its anti-tumor effect. FU is a cell cycle-specific drug which playing the significant role at S-phase.
Reference: China Medical Encyclopedia Editing Committee; editor: Liang Huang; Chinese Medical Encyclopedia.
The above information is edited by the Chemicalbook of Dai Xiongfeng.

Chemical property

White or light yellow crystalline needle. Melting point 338 °C; easily soluble in water, soluble in diluted ammonia, slightly soluble in cool water, insoluble in alcohol and ether.

Uses

For biochemical research, drugs synthesis; being used as pharmaceutical intermediates, also used in organic synthesis

Production methods

It is produced through the reaction of malate, sulfuric acid and urea.

Description

Uracil is a pyrimidine base and a fundamental component of RNA where it binds to adenine via hydrogen bonds. It is converted into the nucleoside uridine through the addition of a ribose moiety, then to the nucleotide uridine monophosphate by the addition of a phosphate group.

Chemical Properties

Crystalline needles. Soluble in hot water, ammonium hydroxide, and other alkalies; insoluble in alcohol and ether.

Uses

Uracil metabolism levels may serve as a diagnostic for oral cancer. It was shown that measuring the overproduction of the metabolite uracil improves the diagnosis and prognosis of gingival buccal squamous cell carcinoma, one of the most common oral cancers in India. And about 83.09% of the tumour tissues showed significant changes in both uracil and pyrimidine metabolism. Higher levels of uracil in patients with lymph node metastases suggest that the metabolites may increase the cancer's ability to spread. It could also be used as a marker for recurrence follow-up, the researchers said.

Uses

Uracil (Lamivudine EP Impurity F) is a nitrogenous base on RNA nucleosides.

Uses

antineoplastic

Definition

ChEBI: A common and naturally occurring pyrimidine nucleobase in which the pyrimidine ring is substituted with two oxo groups at positions 2 and 4. Found in RNA, it base pairs with adenine and replaces thymine during DNA transcription.

Definition

A nitrogenous base that is found in RNA, replacing the thymine of DNA. It has a pyrimidine ring structure.

Definition

uracil: A pyrimidine derivative andone of the major component bases ofnucleotides and the nucleic acidRNA.

General Description

Certified pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards. Uracil is one of the nucleotide bases of RNA. It is the precursor of DNA′s thymine. It acts like a carrier of genetic data and is hooked up with a ribose and three phosphates to form a ribonucleoside triphosphate once a human body produces nucleotides.

Safety Profile

Moderately toxic by intraperitoneal route. An experimental teratogen. Experimental reproductive effects. Questionable carcinogen with experimental tumorigenic data. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx.

Purification Methods

Uracil crystallises from water (m 339-341o) and m 338o after sublimation in high vacuum. Its solubility in H2O at 20o is 1g/300mL. [Beilstein 24 H 312, 24 I 312, 24 II 169, 24 III/IV 1193.]

Uracil Preparation Products And Raw materials

Raw materials

Preparation Products

Vidarabine 2-CHLORO-5-NITROPYRIMIDIN-4-AMINE 2,4-Dichloropyrimidine 2,4-DIBROMOPYRIMIDINE 5-Hydroxymethyluracil 2,4-DICHLORO-5-IODOPYRIMIDINE
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View Lastest Price from Uracil manufacturers

WUHAN FORTUNA CHEMICAL CO., LTD
Product
Uracil 66-22-8
Price
US $0.00/Kg/Drum
Min. Order
1KG
Purity
99%min HPLC
Supply Ability
5 TONS
Release date
2021-06-03
HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
Product
Uracil 66-22-8
Price
US $999.00-800.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
5000
Release date
2024-08-21
Jinan Finer Chemical Co., Ltd
Product
Uracil 66-22-8
Price
US $0.00/Kg/Drum
Min. Order
1KG
Purity
99%
Supply Ability
500mt
Release date
2022-01-25

66-22-8, UracilRelated Search:

Uridine Sulfadiazine Fluorocytosine Thymine Silver sulfadiazine Cytosine Benzophenone Floxuridine 6-(HYDROXYMETHYL)URACIL 2,4-Dihydroxypyrimidine-5-carboxylic acid 6-FORMYL-URACIL MONOHYDRATE Guanosine 5'-triphosphate trisodium salt 5'-Guanylic acid Uridine-5'-triphosphoric acid trisodium salt Uridine 5′-monophosphate disodium salt 5-Fluorouracil 5-NITROOROTIC ACID, POTASSIUM SALT MONOHYDRATE, 98 UDP SODIUM SALT

  • COATED SAFETY BOTTLE 2,5LWITHOUT CAP ISO
  • ALUMINIUM CAN WITH HANDLE AND STOPPER
  • Uracyl
  • 2,6-Dihydroxypyrimidine
  • 2-Hydroxy-4(3H)-pyrimidinone
  • 4-Hydroxy-2(1H)-pyrimidinone
  • Hybar X
  • hybarx
  • Pirod
  • Pyrod
  • RU 12709
  • Ura
  • Urasil
  • 1H-Pyrimidine-2,4-dione
  • 2,(1H,3H)-Pyriminedione
  • 2,4-Dioxypyrimidine
  • 2,4-Pyrimidinedione
  • 2,4-DIOXOPYRIMIDINE
  • 2,4-DIHYDROXYPYRIMIDINE
  • 2,4-PYRIMIDINEDIOL
  • 2,4(1H,3H)-PYRIMIDINEDIONE
  • 2-HYDROXY-4(1H)-PYRIMIDINONE
  • Cellocidin
  • Cellomate
  • CCTGCCCTGUGCAGCTGTGGG
  • PYRIMIDINE-2,4-DIOL
  • PYRIMIDINE-2,4(1H,3H)-DIONE
  • URACIL 98%
  • 2,4-DIHYDROXYPYRIMIDINE / URACIL
  • Fluorouracil EP Impurity C
  • Fluorouracil Impurity 3（Fluorouracil EP Impurity C）
  • Lamivudine ImpurityⅤ:Uracil(4-amino-2H-pyrimidi-none)
  • Zidovudine and Lamivudine Tablets Impurit Ⅱ:Uracil(4-amino-2H-pyrimidi-none)
  • 4-Hydroxy-1H-pyrimidin-2-one
  • [2,4-17O2]uracil
  • Uracil
  • Uracil (15 mg)
  • Uracil, 99+% 100GR
  • Uracil, 99+% 25GR
  • URACIL extrapure
  • 2,4(1H,3H)-Pyrimidinedione, 2,4-Dihydroxypyrimidine, 2,4-Pyrimidinediol
  • Dichlorotitanium
  • Uracil ,98%
  • NSC 3970
  • Uracil,2,4(1H,3H)-Pyrimidinedione, 2,4-Dihydroxypyrimidine, 2,4-Pyrimidinediol
  • 4-Hydroxyuracil
  • Uracil API
  • Pyrimidine-2,4-diol, Pyrimidine-2,4(1H,3H)-dione
  • Uracil Vetec(TM) reagent grade, 98%
  • Uracll
  • URACIL CELL CULTURE TESTED
  • URACIL CRYSTALLINE
  • URACIL ULTRA PURE GRADE
  • URACIL MIN 99%
  • URACIL CELL CULTURE REAGENT
  • UracilForBiochemistry-(2,4-Dioxopyrimidine)
  • UracilForBiochemistry
  • Uracil99+%