3-Chloro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one CAS 16867-33-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 16867-33-7 |
| Molecular Formula | C9H7ClN2O |
| Molecular Weight | 194.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Chloro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one (CAS 16867-33-7) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C9H7ClN2O. Molecular weight: 194.62 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C9H7ClN2O |
| Molecular Weight | 194.62 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 5-Chloro-6-methyl-7H-pyrrolo[2,3-b]pyridine-3-carbaldehyde (CAS 1000340-13-5)
- 4-Chloro-7-methyl-1H-indazole-3-carbaldehyde (CAS 1000340-67-9)
- 6-(4-Chloro-1H-pyrazol-1-yl)pyridin-3-amine (CAS 1006961-40-5)
- 4-Chloro-1-methyl-1,8-naphthyridin-2(1H)-one (CAS 1009360-86-4)
- 4-Chloro-6-(4-methylpyrazol-1-yl)pyrimidine (CAS 1015845-71-2)
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- 2-Chloro-1-(1H-pyrrolo[2,3-b]pyridin-1-yl)ethanone (CAS 102014-84-6)
Recommended Standards
- 4-Chloro-6-methyl-2-(1H-pyrazol-5-yl)pyrimidine (CAS 166197-06-4)
- 2-(Chloromethyl)-4H-pyrido[1,2-a]pyrimidin-4-one (CAS 16867-35-9)
- 6'-Chlorospiro[cyclopropane-1,3'-pyrrolo[3,2-c]pyridin]-2'(1'H)-one (CAS 1642801-92-0)
- 1-Benzyl-3,4-bis(chloromethyl)pyrrolidine (CAS 1416351-90-0)
- 2,3-Dihydro-1H-benzo[d]imidazole-5-carboxylic acid (CAS 851669-20-0)
- 4,5,6,7-Tetrahydro-4,7-ethanoisobenzofuran-1,3-dione (CAS 151813-29-5)
- Methyl 10-bromophenanthrene-9-carboxylate (CAS 101279-43-0)
- 5-(5-Methylpyrimidin-2-yl)-indan-1-one (CAS 1334784-76-7)
- 2-Amino-6-bromo-4-quinolinol (CAS 123420-09-7)
- T-Peptide (CAS 2022956-62-1)
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