(((9H-fluoren-9-yl)methoxy)carbonyl)histidine CAS 157355-76-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 157355-76-5 |
| Molecular Formula | C21H19N3O4 |
| Molecular Weight | 377.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (((9H-fluoren-9-yl)methoxy)carbonyl)histidine (CAS 157355-76-5), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C21H19N3O4. Molecular weight: 377.39 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C21H19N3O4 |
| Molecular Weight | 377.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2001 |
| Nitrogen Atoms | 3 |
Related H Standards
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(furan-2-yl)propanoic acid (CAS 1236257-99-0)
- 1-(2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)ethyl)-1H-imidazole-4-carboxylic acid (CAS 1696540-75-6)
- 3-(((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)methyl)-1-methyl-1H-pyrazole-5-carboxylic acid (CAS 2137821-77-1)
- 3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(furan-2-yl)propanoic acid (CAS 282525-14-8)
- 2-({[(9h-fluoren-9-yl)methoxy]carbonyl}amino)-5-fluorobenzoic acid (CAS 1185296-60-9)
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-6-fluorobenzoic acid (CAS 1185296-64-3)
- 2-({[(9h-fluoren-9-yl)methoxy]carbonyl}amino)-4-fluorobenzoic acid (CAS 1185298-00-3)
- 3-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}-4-fluorobenzoic acid (CAS 1339407-92-9)
Recommended Standards
- Benzyl (S)-4-(5-(1,3-dioxolan-2-yl)-3-oxopentyl)-5-oxooxazolidine-3-carboxylate (CAS 140677-44-7)
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(furan-2-yl)propanoic acid (CAS 159611-02-6)
- (3-(3-Benzyl-1,2,4-oxadiazol-5-yl)azetidin-1-yl)(2,3-dihydrobenzo[b][1,4]dioxin-2-yl)methanone (CAS 1351631-46-3)
- Ethyl 8-(trifluoromethyl)-1,4-dihydroquinoline-3-carboxylate (CAS 31602-18-3)
- 2-Chloro-6,7-dihydro-4H-pyrano[4,3-d]thiazole (CAS 259810-13-4)
- 4-Chlorobenzo[d]thiazole-2-carbonitrile (CAS 1188232-19-0)
- N-(4-Aminobutyl)-N-(2-(phenylthio)ethyl)isoquinoline-5-sulfonamide (CAS 651307-39-0)
- Dihydrostreptomycin sulfate - Impurity D (CAS 26086-49-7)
- 6-Nitropyrazolo[1,5-a]pyrimidine (CAS 55405-65-7)
- Semaglutide impurity 96 (CAS CATO-C4X-222696)
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