ChemicalBook > CAS DataBase List > 2-Chloroadenine

2-Chloroadenine

Product Name: 2-Chloroadenine
CAS No.: 1839-18-5
Chemical Name: 2-Chloroadenine
Synonyms: CHLOROADENINE;NSC 7362;oroadenine;2-chloropurin;2-CHLOROADENINE;2-Chloroadenine 97%;2-Chloroadenine >2-Chlorophenthiazine;2-Chloroadenine ,98%;Cladribine Impurity 3
CBNumber: CB7241389
Molecular Formula: C5H4ClN5
Formula Weight: 169.57
MOL File: 1839-18-5.mol

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2-Chloroadenine Property

Melting point:: >300°C(dec)
Boiling point:: 279.76°C (rough estimate)
Density: 1.4937 (rough estimate)
refractive index: 1.6110 (estimate)
storage temp.: -20°C
solubility: Aqueous Base (Slightly), DMSO (Very Slightly, Heated, Sonicated)
form: Solid
pka: 7.17±0.20(Predicted)
color: Pale yellow
Water Solubility: 8.3mg/L(25 ºC)
λmax: 264nm(lit.)
InChI: InChI=1S/C5H4ClN5/c6-5-10-3(7)2-4(11-5)9-1-8-2/h1H,(H3,7,8,9,10,11)
InChIKey: HBJGQJWNMZDFKL-UHFFFAOYSA-N
SMILES: NC1N=C(N=C2N=CNC2=1)Cl
CAS DataBase Reference: 1839-18-5(CAS DataBase Reference)

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Safety

Hazard Codes: Xi,Xn
Risk Statements: 22
Safety Statements: 24/25
WGK Germany: 3
Hazard Note: Irritant
HS Code: 29339900

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: Y0000610
Product name: Cladribine impurity C
Purity: European Pharmacopoeia (EP) Reference Standard
Packaging: 5 mg
Price: $156
Updated: 2025/07/31

Sigma-Aldrich

Product number: 717592
Product name: 2-Chloroadenine
Purity: 97%
Packaging: 500mg
Price: $87.8
Updated: 2025/07/31

Sigma-Aldrich

Product number: Y0000610
Product name: Cladribine impurity C
Purity: European Pharmacopoeia (EP) Reference Standard
Packaging: y0000610
Price: $153
Updated: 2024/03/01

TCI Chemical

Product number: C2575
Product name: 2-Chloroadenine
Purity: >98.0%(HPLC)(T)
Packaging: 1g
Price: $86
Updated: 2025/07/31

TCI Chemical

Product number: C2575
Product name: 2-Chloroadenine
Purity: >98.0%(HPLC)(T)
Packaging: 5g
Price: $259
Updated: 2025/07/31

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2-Chloroadenine Chemical Properties,Usage,Production

Description

2-Chloroadenine is a heterocyclic building block that has been used in the synthesis of adenosine antimetabolites with antineoplastic activity. It is also the major catabolite of 2-chloro-2’-deoxyadenosine.

Chemical Properties

Pale Yellow Solid

Uses

2-Chloroadenine is a compound useful in organic synthesis used in the preparation of 8-oxadenine derivatives.

Synthesis

5451-40-1

1839-18-5

Preparation of 2-chloroadenine: 2,6-dichloropurine (0.877 kg, 4.64 mol) was placed in a 20 L autoclave and a methanol solution of ammonia (7.0 N, 6.95 kg) was added. After sealing the autoclave, stirring was initiated and the mixture was heated to 100 °C. The reaction was maintained at this temperature for 17 hours. After completion of the reaction, the mixture was cooled to room temperature. After complete cooling, the autoclave was opened and the reaction mixture was diluted with deionized water (3.5 kg). The resulting solid suspension was collected by filtration and the filter cake was washed with methanol (2 x 0.7 kg). Subsequently, the product was dried to constant weight in a vacuum oven at 40 °C to afford 2-chloroadenine as a light yellow solid (0.725 kg, 4.28 mol, 92% yield).

References

[1] Bioorganic and Medicinal Chemistry, 2003, vol. 11, # 24, p. 5501 - 5508
[2] Heterocycles, 2013, vol. 87, # 11, p. 2369 - 2384
[3] Nucleosides, Nucleotides and Nucleic Acids, 2005, vol. 24, # 5-7, p. 1127 - 1130
[4] Patent: WO2005/70947, 2005, A1. Location in patent: Page/Page column 12-13
[5] Patent: WO2018/19681, 2018, A1. Location in patent: Page/Page column 46; 47

2-Chloroadenine Preparation Products And Raw materials

Raw materials

Xanthine Ammonium hydroxide Diphosphoryl chloride Phosphorus oxitrichloride Ethyl acetate Methanol Sodium hydroxide

Preparation Products

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View Lastest Price from 2-Chloroadenine manufacturers

Baoji Guokang Healthchem Co., Ltd.

Product: 2-Chloroadenine 1839-18-5
Price: US $2857.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 1T
Release date: 2021-06-22

Henan Fengda Chemical Co., Ltd

Product: 2-chloroadenine 1839-18-5
Price: US $122.00-1.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: g-kg-tons, free sample is available
Release date: 2024-01-11

Zhuozhou Wenxi import and Export Co., Ltd

Product: 2-Chloroadenine 1839-18-5
Price: US $15.00-10.00/KG
Min. Order: 1KG
Purity: 99%+ HPLC
Supply Ability: Monthly supply of 1 ton
Release date: 2021-07-10

1839-18-5, 2-ChloroadenineRelated Search:

Acetaminophen Adenine Glucosamine 5-Amino-2-methylpyridine Adenine Sulfate EC 2.6.1.2 Difluorochloromethane 2-Chloroadenosine Clofarabine 6-AMINO-7-BENZYL-2-CHLOROPURINE Cladribine 2-Chloroadenosine hemidydrate 6-Chloroguanine 2-CHLOROADENOSINE, [8-14C]- 2-CHLORO-6-(2'-HYDROXYETHYL-AMINO)-7-METHYLPURINE N-BENZYL-2-CHLORO-9-ISOPROPYL-9H-PURIN-6-AMINE 5'-sulfamoyl-2-chloroadenosine 6-AMINO-2-CHLORO-7-METHYLPURINE

2-CHLOROADENINE

2-CHLORO-6-AMINOPURINE

6-Amino-2-chloro-7H-purine

Cladribine EP Impurity C

Regadenoson impurity H

2-Chlorophenthiazine

2-chloroadenine(2-cl-ade)

CHLOROADENINE

2-Chloro-6-AMinopurine Min98%

Cladribine Impurity C (2-Chlorophenthiazine)

2-Chloro-6-AMinopurine Min

2-chloropurin

2-Chloroadenine 97%

2-Chloroadenine (Clofarabine, Cladribine)

2-chloro-7h-purin-6-amine

(2-chloro-7H-purin-6-yl)amine

2-Chloroadenine ,98%

2-chloroadenine 6-aMino-2-chloro-9H-purine

9H-Purin-6-amine, 2-chloro-

NSC 7362

Cladribine Impurity 3(Cladribine EP Impurity C)

2-Chloroadenine &gt

Cladribine impurity C CRS

oroadenine

Cladribine impurity C(Secondary Standards traceble to EP)

Cladribine Impurity 3

2-Chloroadenine, 97%,

2-Chloro-7H-purin-6-amine (2-Chloroadenine)

1839-18-5

1938-18-5

C5H4ClN5

C5H4N5Cl

Bases & Related Reagents

Heterocycles

Nucleotides

Fused Ring Systems

Amines

Purine

Purines

pharmacetical