4-amino-2,5-dimethylthieno[2,3-d]pyrimidine-6-carboxylic acid CAS 923737-07-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 923737-07-9 |
| Molecular Formula | C9H9N3O2S |
| Molecular Weight | 223.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-amino-2,5-dimethylthieno[2,3-d]pyrimidine-6-carboxylic acid (CAS 923737-07-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C9H9N3O2S. Molecular weight: 223.25 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C9H9N3O2S |
| Molecular Weight | 223.25 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.) | 1987 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 4-(Phenylsulfonyl)-1H-pyrazol-5-amine (CAS 243661-06-5)
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- (3a,4,5,6,7,7a-Hexahydro-1H-benzoimidazol-2-ylsulfanyl)-acetic acid hydrochloride (CAS 1185294-05-6)
- Dibenzyl cyanocarbonimidodithioate (CAS 21504-97-2)
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- 4-(Di(1H-indol-3-yl)methyl)aniline (CAS 6340-90-5)
- (S)-N-Benzyl-2-hydroxy-3-methoxypropanamide (CAS 1567820-75-0)
- 2-(Ethanesulfonyl)-5-(tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1449010-00-7)
- Des-Ser34-Gly33Tirzepatide (CAS CATO-CPTD788941)
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