Methyl 1-isobutyl-3,6-dimethyl-2,4-dioxo-1,2,3,4-tetrahydrothieno[2,3-d]pyrimidine-5-carboxylate CAS 491613-98-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 491613-98-0 |
| Molecular Formula | C14H18N2O4S |
| Molecular Weight | 310.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 1-isobutyl-3,6-dimethyl-2,4-dioxo-1,2,3,4-tetrahydrothieno[2,3-d]pyrimidine-5-carboxylate (CAS 491613-98-0) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C14H18N2O4S. Molecular weight: 310.37 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C14H18N2O4S |
| Molecular Weight | 310.37 g/mol |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- Ethyl 4-phenyl-2-(pyridin-4-yl)thiazole-5-carboxylate (CAS 228413-59-0)
- Methyl 2-[4-phenyl-2-(pyridin-2-yl)-1,3-thiazol-5-yl]acetate (CAS 861209-68-9)
- Ethyl 4-phenyl-2-(pyridin-3-yl)thiazole-5-carboxylate (CAS 51492-88-7)
- (2R,4R)-2-(1H-Benzo[d]imidazol-2-yl)-1-methylpiperidin-4-amine (CAS 1352568-44-5)
- 4-Bromo-3-isoxazolemethanol (CAS 2703774-72-3)
- (E)-4-Methyl-N'-(2-oxo-1-phenyl-2-(piperidin-1-yl)ethylidene)benzenesulfonohydrazide (CAS 219915-67-0)
- 4,6-Dichloropicolinonitrile (CAS 40314-71-4)
- Ethyl 5-(2-ethoxy-2-oxoethyl)-1H-imidazole-2-carboxylate (CAS 193813-69-3)
- 2,4-Dimethoxybenzoic Acid (CAS 91-52-1)
- D-Ile27-Tirzepatide (CAS CATO-CPTD788907)
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