2,4-Diamino-7-(5-methyl-2-thienyl)-7,8-dihydroquinazolin-5(6H)-one CAS 1428139-86-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1428139-86-9 |
| Molecular Formula | C13H14N4OS |
| Molecular Weight | 274.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2,4-Diamino-7-(5-methyl-2-thienyl)-7,8-dihydroquinazolin-5(6H)-one (CAS 1428139-86-9), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C13H14N4OS. Molecular weight: 274.34 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C13H14N4OS |
| Molecular Weight | 274.34 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
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- 6-[(2R)-2-(4,6-Diamino-1,3,5-triazin-2-yl)cyclobutyl]-1,3,5-triazine-2,4-diamine (CAS 19438-85-8)
- 4,8-Diamino-9,10-dihydroanthracene-1,5,9,10-tetraol (CAS 93778-47-3)
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Recommended Standards
- 1-(Benzo[d]thiazol-2-yl)azetidin-3-yl cyclopropanecarboxylate (CAS 1421531-15-8)
- Ethyl 2-(methylthio)-6-phenylpyrimidine-4-carboxylate (CAS 1644431-42-4)
- Ethyl 2-((3-aminophenyl)thio)isonicotinate (CAS 1415719-48-0)
- 4-chloro-3-methyl-5-nitro-pyridine (CAS 856834-51-0)
- 3,4-Difluoro-N-(pyridin-4-ylmethyl)benzenesulfonamide (CAS 736154-60-2)
- (1R,3aR,6aS)-2-(tert-butoxycarbonyl)octahydrocyclopenta[c]pyrrole-1-carboxylic acid (CAS 1610351-01-3)
- (E)-3-(2-Nitrovinyl)-1H-indole (CAS 51870-94-1)
- 5-Bromo-3-chloro-2-nitrophenol (CAS 2090301-02-1)
- Methyl 4-bromo-5-hydroxy-2-methylbenzoate (CAS 2090819-94-4)
- Semaglutide impurity 270 (CAS CATO-C4X-2226270)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com