Methyl 2-(5,6-dimethyl-4-oxothieno[2,3-d]pyrimidin-3(4H)-yl)acetate CAS 403716-64-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 403716-64-3 |
| Molecular Formula | C11H12N2O3S |
| Molecular Weight | 252.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 2-(5,6-dimethyl-4-oxothieno[2,3-d]pyrimidin-3(4H)-yl)acetate (CAS 403716-64-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C11H12N2O3S. Molecular weight: 252.29 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C11H12N2O3S |
| Molecular Weight | 252.29 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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 |
Related Methyl Standards
- Methyl 2-{5,6-dimethyl-4-oxo-3h,4h-thieno[2,3-d]pyrimidin-2-yl}acetate (CAS 105219-75-8)
- 3-{5,6-dimethyl-4-oxo-1H,4H-thieno[2,3-d]pyrimidin-2-yl}propanoic acid (CAS 109164-46-7)
- Ethyl 3,7-Dimethyl-5-oxo-5H-thiazolo[3,2-a]pyrimidine-2-carboxylate (CAS 1286695-39-3)
- 1,3-Dimethyl-4-nitro-N-(thiophen-2-ylmethyl)-1H-pyrazol-5-amine (CAS 675819-32-6)
- 2-(5,6-Dimethyl-4-oxothieno[2,3-d]pyrimidin-3(4H)-yl)propanoic acid (CAS 446830-23-5)
- 2-[5,7-dimethyl-2-(methylsulfanyl)-[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]acetic acid (CAS 863668-02-4)
- 2-{5,6-dimethyl-4-oxo-3h,4h-thieno[2,3-d]pyrimidin-2-yl}acetohydrazide (CAS 561009-01-6)
- 3-{5,6-dimethyl-4-oxo-3h,4h-thieno[2,3-d]pyrimidin-3-yl}propanoic acid (CAS 450394-89-5)
Recommended Standards
- Isopropyl 2-(2-cyanoacetamido)thiophene-3-carboxylate (CAS 590351-55-6)
- Methyl 2-[(cyanoacetyl)amino]-4,5-dimethylthiophene-3-carboxylate (CAS 545347-86-2)
- Ethyl 5-acetamido-4-cyano-3-methylthiophene-2-carboxylate (CAS 23903-49-3)
- 2-(2-Bromoethyl)benzonitrile (CAS 101860-81-5)
- 3-Benzyl-1-ethylpyrrolidine-2,5-dione (CAS 100372-35-8)
- 2-Chloro-5-isopropylphenol (CAS 16606-24-9)
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- 5-Hydroxy-2-nitrobenzamide (CAS 4315-16-6)
- 2-Bromo-6-chloro-3-iodo-5-methylpyridine (CAS 1822782-03-5)
- (β-Asp5)-Delta-Sleep Inducing Peptide (CAS 82602-88-8)
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