4-Chloro-2-methyl-7H-pyrrolo[2,3-d]pyrimidine CAS 71149-52-5
| CAS No. | 71149-52-5 |
| Molecular Formula | C7H6ClN3 |
| Molecular Weight | 167.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Chloro-2-methyl-7H-pyrrolo[2,3-d]pyrimidine (CAS 71149-52-5), molecular formula C7H6ClN3 and molecular weight 167.60 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H6ClN3, 4-Chloro-2-methyl-7H-pyrrolo[2,3-d]pyrimidine contains a nitrile group, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 167.60 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), 4-Chloro-2-methyl-7H-pyrrolo[2,3-d]pyrimidine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H6ClN3 |
| Molecular Weight | 167.60 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- 4-Chloro-1H-pyrrolo[2,3-b]pyridin-3-amine (CAS 1000340-38-4)
- 6-Chloro-1H-pyrrolo[2,3-b]pyridin-4-amine (CAS 1000340-80-6)
- 5-Chloro-1H-pyrrolo[3,2-b]pyridin-7-amine (CAS 1000577-90-1)
- 5-Chloro-1H-indazol-6-amine (CAS 100960-35-8)
- 3-chloro-6-methyl-[1,2,4]triazolo[4,3-a]pyridine (CAS 1020036-37-6)
- 7-Chloro-1H-benzo[d]imidazol-5-amine (CAS 10597-54-3)
- 6-Chloro-1H-benzo[d]imidazol-4-amine (CAS 10597-55-4)
- 2-Chloro-7-methyl-7H-pyrrolo[2,3-d]pyrimidine (CAS 1060816-67-2)
Recommended Standards
- 4-chloro-2-methyl-3H-imidazo[4,5-c]pyridine (CAS 50432-65-0)
- 4-Chloro-3-methyl-3H-imidazo[4,5-c]pyridine (CAS 87034-78-4)
- 4-Chloro-1H-indazol-6-amine (CAS 221681-84-1)
- 4-chloro-3-methyl-pyrazolo[1,5-a]pyrazine (CAS 2309462-56-2)
- (3-Morpholino-5-(trifluoromethyl)phenyl)boronic acid (CAS 1704069-70-4)
- 5-[4-(Methylthio)phenyl]-1H-tetrazole (CAS 138689-79-9)
- 2-(Benzyloxy)-4-methylpyridin-3-amine (CAS 1341099-57-7)
- 5-Morpholin-4-ylthiophene-2-carboxylic acid (CAS 332345-27-4)
- Peficitinib Impurity 7 (CAS 944123-04-0)
- 1-(2-(4-Methoxyphenyl)ethyl)piperidine-4-ketoxime (CAS 106011-12-5)
- (S)-2-(((1-(tert-Butoxycarbonyl)pyrrolidin-2-yl)methyl)(ethyl)amino)acetic acid (CAS 1354001-21-0)
- 3-Bromo-4-[(3,4-dichlorobenzyl)oxy]-5-methoxybenzaldehyde (CAS 219765-92-1)
- 3-Fluoro-2-morpholinopyridine-4-boronic acid (CAS 1256355-28-8)
- Tau Peptide (304-318) trifluoroacetate salt (CAS 330456-49-0)
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