5-Ethyl-1,3-dimethyl-2,4-dioxo-1h,2h,3h,4h-pyrido[2,3-d]pyrimidine-6-carboxylic acid CAS 1038262-35-9
| CAS No. | 1038262-35-9 |
| Molecular Formula | C12H13N3O4 |
| Molecular Weight | 263.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 5-Ethyl-1,3-dimethyl-2,4-dioxo-1h,2h,3h,4h-pyrido[2,3-d]pyrimidine-6-carboxylic acid 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.
5-Ethyl-1,3-dimethyl-2,4-dioxo-1h,2h,3h,4h-pyrido[2,3-d]pyrimidine-6-carboxylic acid (CAS 1038262-35-9), molecular formula C12H13N3O4 and molecular weight 263.25 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H13N3O4, 5-Ethyl-1,3-dimethyl-2,4-dioxo-1h,2h,3h,4h-pyrido[2,3-d]pyrimidine-6-carboxylic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 263.25 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.
Physical & Chemical Properties
| Molecular Formula | C12H13N3O4 |
| Molecular Weight | 263.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 3 |
Related Ethyl Standards
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Recommended Standards
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