5-Chloro-3-methyl-1,2,3,4-tetrahydropyrimido[4,5-d]pyrimidin-2-one CAS 893444-55-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 893444-55-8 |
| Molecular Formula | C7H7ClN4O |
| Molecular Weight | 198.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Chloro-3-methyl-1,2,3,4-tetrahydropyrimido[4,5-d]pyrimidin-2-one (CAS 893444-55-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C7H7ClN4O. Molecular weight: 198.61 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C7H7ClN4O |
| Molecular Weight | 198.61 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.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Chloro Standards
- 5-Chloro-6-methoxy-1H-pyrrolo[2,3-b]pyridin-2(3H)-one (CAS 1190317-66-8)
- 4-Chloro-6-methoxy-1H-pyrrolo[2,3-b]pyridin-2(3H)-one (CAS 1190322-16-7)
- 4-Chloro-5-methoxy-1H,2H,3H-pyrrolo[2,3-b]pyridin-2-one (CAS 1190322-44-1)
- 6-Chloro-4-methoxy-1H-pyrrolo[2,3-b]pyridin-2(3H)-one (CAS 1190322-45-2)
- 5-Chloro-2,3-dihydro-1H-pyrrolo[3,2-b]pyridine-6-carboxylic acid (CAS 1194732-28-9)
- 6-Chloro-3-(methoxymethyl)[1,2,4]triazolo[4,3-b]pyridazine (CAS 1204296-35-4)
- {7-chloro-3-methyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl}methanol (CAS 1211580-75-4)
- 3-Chloro-1,8a-dihydroimidazo[1,2-a]pyridine-8-carboxylic acid (CAS 1257852-46-2)
Recommended Standards
- 5-Chloro-1-methoxy-1H-benzo[d]imidazol-2(3H)-one (CAS 579515-38-1)
- 5-Chloro-6-nitro-2,3-dihydro-1H-indole (CAS 2007919-15-3)
- 5-(Chloromethyl)furo[2,3-d]pyrimidine-2,4-diamine (CAS 67194-86-9)
- 3-Fluoropyridine 1-oxide (CAS 695-37-4)
- 1-Phenyl-2,5,8,11-tetraoxatridecan-13-oic acid (CAS 144751-75-7)
- 2-(2-Chloro-3-nitrophenyl)acetonitrile (CAS 108772-95-8)
- 1-(Thieno[3,2-c]pyridin-2-yl)ethan-1-amine (CAS 1313726-88-3)
- Methyl 3-bromo-5-ethoxybenzoate (CAS 860695-64-3)
- 6-Iodo-2,4-dimethyl-4,6,7,8-tetrahydro-5H-thiazolo[4,5-b]azepin-5-one (CAS 2124262-46-8)
- Semaglutide impurity 202 (CAS CATO-C4X-2226202)
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