5-Methyl-4-oxo-3-propyl-3,4-dihydrothieno[2,3-d]pyrimidine-6-carboxylic acid CAS 878657-13-7
| CAS No. | 878657-13-7 |
| Molecular Formula | C11H12N2O3S |
| Molecular Weight | 252.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 252.29 g/mol gives 5-Methyl-4-oxo-3-propyl-3,4-dihydrothieno[2,3-d]pyrimidine-6-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Methyl-4-oxo-3-propyl-3,4-dihydrothieno[2,3-d]pyrimidine-6-carboxylic acid (CAS 878657-13-7) is a high-purity analytical reference standard with the molecular formula C11H12N2O3S and a molecular weight of 252.29 g/mol.
Structurally, 5-Methyl-4-oxo-3-propyl-3,4-dihydrothieno[2,3-d]pyrimidine-6-carboxylic acid (C11H12N2O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 252.29 g/mol, it falls into the medium-molecular-weight range. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 5-Methyl-4-oxo-3-propyl-3,4-dihydrothieno[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.
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.) | 1987 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
- 5-[(3,4-dimethoxyphenyl)methyl]-1,3,4-oxadiazole-2-thiol (CAS 928710-70-7)
- 5-Nitro-6-(piperidin-1-yl)imidazo[2,1-b]thiazole (CAS 339022-18-3)
- 5-((9H-Purin-6-yl)thio)pentanoic acid (CAS 608-12-8)
- 6-Amino-1-ethyl-5-(2-methyl-1,3-thiazol-4-yl)-1,2,3,4-tetrahydropyrimidine-2,4-dione (CAS 871217-43-5)
- 3-Bromo-3-fluoro-4-methylbenzophenone (CAS 844879-55-6)
- N-(5-Acetamido-2-methoxyphenyl)-2-((4-ethyl-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 618426-42-9)
- 4-(((1-Methyl-1h-pyrazol-5-yl)methyl)amino)butan-2-ol (CAS 1343936-52-6)
- 2-Hydroxy-9-fluorenone (CAS 6949-73-1)
- Ethyl 2-fluoro-6-methoxyisonicotinate (CAS 1804494-12-9)
- 1-(5-methylpyridin-2-yl)piperidin-4-amine (CAS 596817-94-6)
- N-Octyl Ether (CAS 629-82-3)
- (E)-4-chloro-2-(((2-methoxybenzyl)imino)methyl)phenol (CAS 1232827-59-6)
- 4-Chloro-2-(3-methoxyphenyl)pyrimidine (CAS 1156238-51-5)
- Exenatide (CAS 141758-74-9)
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