4-chloro-3-methyl-1H-pyrazolo[3,4-d]pyrimidine CAS 871335-85-2
| CAS No. | 871335-85-2 |
| Molecular Formula | C6H13ClN4 |
| Molecular Weight | 176.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-chloro-3-methyl-1H-pyrazolo[3,4-d]pyrimidine is closely related to a nitrile group, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 4-chloro-3-methyl-1H-pyrazolo[3,4-d]pyrimidine (CAS 871335-85-2), a certified reference material (molecular formula C6H13ClN4, MW 176.65 g/mol) for analytical method development and quality control.
Structurally, 4-chloro-3-methyl-1H-pyrazolo[3,4-d]pyrimidine (C6H13ClN4) contains a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 176.65 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C6H13ClN4 |
| Molecular Weight | 176.65 g/mol |
| 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related chloro Standards
- 5-chloro-7H-pyrrolo[2,3-d]pyrimidin-4-amine (CAS 1080467-50-0)
- 7-chloro-3-methyl-[1,2,4]triazolo[4,3-c]pyrimidine (CAS 1094292-91-7)
- 6-chloro-1H-pyrazolo[4,3-c]pyridin-3-amine (CAS 1206979-75-0)
- 5-chloro-3-methyl-2H-pyrazolo[4,3-d]pyrimidine (CAS 1208863-75-5)
- 5-chloro-1H-pyrazolo[3,4-b]pyridin-3-amine (CAS 1245643-75-7)
- 5-chloro-1H-pyrazolo[4,3-b]pyridin-3-amine (CAS 1268522-21-9)
- 5-chloro-3-methyl-triazolo[4,5-b]pyridine (CAS 1353777-54-4)
- 7-chloro-5-methyl-[1,2,4]triazolo[4,3-c]pyrimidine (CAS 1354951-50-0)
Recommended Standards
- 3-chloro-6-methyl-[1,2,4]triazolo[4,3-b]pyridazine (CAS 38956-68-2)
- 4-chloro-6-methylimidazo[2,1-f][1,2,4]triazine (CAS 2090251-00-4)
- 2-chloro-5H-pyrrolo[3,2-d]pyrimidin-4-amine (CAS 91996-89-3)
- 4-chloropteridine (CAS 72700-48-2)
- 4-(3,5-Dimethyl-1H-pyrazol-1-yl)-6-methyl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidine (CAS 384369-16-8)
- 4-((4-(((1-(4-Methoxyphenyl)-1-oxopropan-2-yl)oxy)carbonyl)phenyl)amino)-4-oxobutanoic acid (CAS 906137-85-7)
- Z-Asu(OtBu)-OH.DCHA (CAS 88217-33-8)
- (1-(3,4-Dichlorobenzyl)piperidin-3-yl)methanamine (CAS 1152497-30-7)
- 6-(propan-2-yl)-2,3-dihydro-1H-inden-1-amine hydrochloride (CAS 1803606-99-6)
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- 2,5-Difluoro-N-(4-fluorobenzyl)aniline (CAS 1019585-04-6)
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- 6-(2-Aminophenyl)-2-methyl-2,3-dihydropyridazin-3-one (CAS 1448027-35-7)
- Insulin Degludec Impurity 2 (CAS CATO-C4X-21572)
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