4-Chloro-1-(m-tolyl)-1H-pyrazolo[3,4-d]pyrimidine CAS 650628-11-8
| CAS No. | 650628-11-8 |
| Molecular Formula | C12H9ClN4 |
| Molecular Weight | 244.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Chloro-1-(m-tolyl)-1H-pyrazolo[3,4-d]pyrimidine (CAS 650628-11-8), molecular formula C12H9ClN4 and molecular weight 244.68 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Chloro-1-(m-tolyl)-1H-pyrazolo[3,4-d]pyrimidine (C12H9ClN4) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 244.68 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 4-Chloro-1-(m-tolyl)-1H-pyrazolo[3,4-d]pyrimidine 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.
Physical & Chemical Properties
| Molecular Formula | C12H9ClN4 |
| Molecular Weight | 244.68 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 | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Chloro Standards
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- 4-(6-Chloro-1H-benzo[d]imidazol-2-yl)phenol (CAS 113561-60-7)
- 7-Chloro-4-methyl-1-phenyl-1H-pyrazolo[3,4-d]pyridazine (CAS 1204297-37-9)
- 6-Chloro-9-(p-tolyl)-9H-purine (CAS 123201-00-3)
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Recommended Standards
- 4-Amino-5-chloro-9,10-dihydroacridin-9-one (CAS 893612-47-0)
- 4-Chloro-1-(o-tolyl)-1H-pyrazolo[3,4-d]pyrimidine (CAS 650628-61-8)
- 4-{3-chloro-2-methylpyrazolo[1,5-a]pyrimidin-7-yl}pyridine (CAS 439097-29-7)
- 4-Chloro-1-(p-tolyl)-1H-pyrazolo[3,4-d]pyrimidine (CAS 23000-47-7)
- 5-Methyl-1-propyl-1H-pyrazole-3-carboxylic acid (CAS 956950-99-5)
- 4-Bromo-1-methyl-1H-pyrrolo[3,2-c]pyridine-3-carboxylic acid (CAS 1448891-84-6)
- 1-Butyl-1-methylpyrrolidinium Hexafluorophosphate (CAS 330671-29-9)
- tert-Butyl 3-[(oxolan-3-yl)amino]azetidine-1-carboxylate (CAS 1510224-18-6)
- n-(4-Methoxybenzyl)-2-methylbutan-1-amine (CAS 1042579-03-2)
- 2,3-Dibromo-1,4-dimethoxybenzene (CAS 5030-61-5)
- N,N,N′,N′-tetrakis(2-pyridylmethyl)ethylenediamine (CAS 16858-02-9)
- Itraconazole Impurity 76 (CAS CATO-C4X-149776)
- Methyl 2-fluoro-5-methoxypyridine-4-carboxylate (CAS 1256821-99-4)
- Semaglutide impurity 227 (CAS CATO-C4X-2226227)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com