6-chloro-3H-pyrido[3,2-d]pyrimidin-4-one CAS 171178-33-9
| CAS No. | 171178-33-9 |
| Molecular Formula | C7H4ClN3O |
| Molecular Weight | 181.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 6-chloro-3H-pyrido[3,2-d]pyrimidin-4-one.
6-chloro-3H-pyrido[3,2-d]pyrimidin-4-one (CAS 171178-33-9) is a high-purity analytical reference standard with the molecular formula C7H4ClN3O and a molecular weight of 181.58 g/mol.
6-chloro-3H-pyrido[3,2-d]pyrimidin-4-one (C7H4ClN3O) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 6-chloro-3H-pyrido[3,2-d]pyrimidin-4-one 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 | C7H4ClN3O |
| Molecular Weight | 181.58 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.) | 2005 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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- 4-[5-(Chloromethyl)-1,2,4-oxadiazol-3-yl]-1,2,5-oxadiazol-3-amine (CAS 329212-59-1)
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