3-Chloro-1H-pyrazolo[4,3-d]pyrimidin-7-amine CAS 1935382-01-6
| CAS No. | 1935382-01-6 |
| Molecular Formula | C5H4ClN5 |
| Molecular Weight | 169.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 3-Chloro-1H-pyrazolo[4,3-d]pyrimidin-7-amine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
3-Chloro-1H-pyrazolo[4,3-d]pyrimidin-7-amine (CAS 1935382-01-6) is a high-purity analytical reference standard with the molecular formula C5H4ClN5 and a molecular weight of 169.57 g/mol.
Owing to a nitrile group, chlorine substitution, 3-Chloro-1H-pyrazolo[4,3-d]pyrimidin-7-amine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 169.57 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H4ClN5 |
| Molecular Weight | 169.57 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related Chloro Standards
- 7-chloro-1H-pyrazolo[4,3-d]pyrimidin-5-amine (CAS 1086398-36-8)
- 2-Chloro-4-methoxypyrimidine-5-carbonitrile (CAS 1106295-93-5)
- 3-Chloro-[1,2,4]triazolo[4,3-b]pyridazin-6-amine (CAS 1150888-24-6)
- 7-Chloro-3H-imidazo[4,5-b]pyridine 4-oxide (CAS 115953-98-5)
- 7-Chloro-2-methyloxazolo[5,4-d]pyrimidine (CAS 118767-93-4)
- 3-Chloro-6-(hydroxymethyl)pyrazine-2-carbonitrile (CAS 1257072-48-2)
- 7-Chloro[1,2,4]triazolo[4,3-c]pyrimidin-5-amine (CAS 1306739-68-3)
- 5-Chloro-3-(furan-2-yl)-1H-1,2,4-triazole (CAS 1315346-11-2)
Recommended Standards
- 3-Chloro-1H-pyrazolo[3,4-d]pyrimidin-6-amine (CAS 1934811-21-8)
- 3-Chloro-1H-pyrazolo[4,3-d]pyrimidin-5-amine (CAS 1935950-46-1)
- 5-chloro-1-methyl-1H-[1,2,3]triazolo[4,5-b]pyrazine (CAS 1896922-47-6)
- 2-Chloro-6-methoxypyrimidine-4-carbonitrile (CAS 1936326-00-9)
- 4-(Pentan-3-ylamino)-1H-pyrrolo[2,3-b]pyridine-5-carboxamide (CAS 920959-66-6)
- Ethyl (2-nitropyridin-3-yl)carbamate (CAS 55304-91-1)
- 6-Bromo-4-methylquinazolin-8-ol (CAS 2231399-83-8)
- 1-(Methoxycarbonyl)-9H-pyrido[3,4-b]indole-3-carboxylic acid (CAS 2651971-31-0)
- (4-amino-3-nitrophenyl)boronic acid (4-azanyl-3-nitro-phenyl)boronic acid 89466-07-9 A843201 (CAS 89466-07-9)
- Benzyl (S)-4-(hydroxymethyl)-2,2-dimethyloxazolidine-3-carboxylate (CAS 133464-36-5)
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- (2-(2,2,2-Trifluoroethyl)pyridin-4-yl)methanamine (CAS 1393561-77-7)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com