2-[(6,7-Dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-4-yl)thio]-3-pyridinecarboxylic acid CAS 748778-81-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 748778-81-6 |
| Molecular Formula | C15H11N3O2S2 |
| Molecular Weight | 329.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-[(6,7-Dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-4-yl)thio]-3-pyridinecarboxylic acid (CAS 748778-81-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C15H11N3O2S2. Molecular weight: 329.40 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C15H11N3O2S2 |
| Molecular Weight | 329.40 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Dihydro Standards
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- Ethyl 1,4-dihydro-5-methyl-4-oxo-2-(2-pyridinylmethyl)thieno[2,3-d]pyrimidine-6-carboxylate (CAS 731778-58-8)
- Ethyl 7-(3-((2,5-dihydro-1H-pyrrol-1-yl)methyl)phenyl)-7-oxoheptanoate (CAS 898749-82-1)
- 898764-95-9 Ethyl 7-{4-[(2,5-dihydro-1H-pyrrol-1-yl)methyl]phenyl}-7-oxoheptanoate DTXSID70643064 (CAS 898764-95-9)
- 1-[(2,3-Dihydro-1,4-benzodioxin-6-yl)sulfonyl]-4-hydroxyproline (CAS 1008664-88-7)
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Recommended Standards
- 2,5-Dimethyl-3-phenyl-N-(pyridin-2-ylmethyl)pyrazolo[1,5-a]pyrimidin-7-amine (CAS 850730-97-1)
- 2-Amino-6-(3,4-dimethylphenyl)-4-(4-methoxyphenyl)nicotinonitrile (CAS 91923-45-4)
- 2-(Isopropylamino)-6-(naphthalen-1-yl)quinazolin-7-ol (CAS 914396-16-0)
- 3-Amino-7-bromobenzofuran-2-carboxylic acid (CAS 1782769-75-8)
- cis-3-{[(tert-butoxy)carbonyl]amino}oxetane-2-carboxylic acid (CAS 2012574-77-3)
- 2-amino-4-fluoro-5-hydroxybenzoic acid (CAS 1250931-52-2)
- 4-Bromo-5-chloro-2,3-difluorobenzoic acid (CAS 2487481-74-1)
- N-(3-Isocyanopropyl)imidazole (CAS 1314136-06-5)
- (R)-3-Ethylpiperazine-2,5-dione (CAS 61316-67-4)
- Tirzepatide Impurity 48 (CAS CATO-C4X-324048)
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