3-ethyl-2-mercaptopyrido[2,3-d]pyrimidin-4(3H)-one CAS 923164-38-9
| CAS No. | 923164-38-9 |
| Molecular Formula | C9H9N3OS |
| Molecular Weight | 207.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-ethyl-2-mercaptopyrido[2,3-d]pyrimidin-4(3H)-one (CAS 923164-38-9), molecular formula C9H9N3OS and molecular weight 207.25 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H9N3OS, 3-ethyl-2-mercaptopyrido[2,3-d]pyrimidin-4(3H)-one contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 207.25 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).
CATO manufactures 3-ethyl-2-mercaptopyrido[2,3-d]pyrimidin-4(3H)-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 | C9H9N3OS |
| Molecular Weight | 207.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | 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.) | 1987 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related ethyl Standards
Recommended Standards
- 3-Ethoxycarbonylphenyl isothiocyanate (CAS 3137-84-6)
- 3-Methoxy-N-phenyl-1,2,4-thiadiazol-5-amine (CAS 90564-94-6)
- 3-Benzyl-1,3-thiazolidine-2,4-dione (CAS 37868-80-7)
- 3-Methyl-4H-benzo[b][1,4]thiazine-2-carboxylic acid (CAS 446829-73-8)
- 2-Methylpentan-3-amine (CAS 54287-41-1)
- 1-ethyl-1h-pyraZole-5-carbohydrazide (CAS 1001755-76-5)
- 4-isocyanatobenzene-1,2-dicarbonitrile (CAS 342617-80-5)
- 2-Fluoro-5-(trifluoromethyl)pyridine (CAS 69045-82-5)
- 3-(Trifluoromethoxy)iodobenzene (CAS 198206-33-6)
- 1-(3-Aminophenyl)azetidin-3-ol (CAS 1456595-11-1)
- 4-(1,3-Dithian-2-yl)-N,N-dimethylaniline (CAS 24588-75-8)
- 4-Chloro-1-nitroacridin-9(10H)-one (CAS 13161-88-1)
- 4-Chloro-1-((tetrahydro-2h-pyran-2-yl)methyl)-1h-pyrazol-3-amine (CAS 1409512-74-8)
- Neuropeptide Y (1-24) amide (human, rat) (CAS 131448-51-6)
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