Endothelin (16-21) CAS 121377-67-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 121377-67-1 |
| Molecular Formula | C39H57N9O9 |
| Molecular Weight | 795.94 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order Endothelin (16-21) (CAS 121377-67-1) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C39H57N9O9. Molecular weight: 795.94 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C39H57N9O9 |
| Molecular Weight | 795.94 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 9 |
Related Endothelin Standards
- Endothelin-1 (11-21) (CAS 144602-02-8)
- Endothelin-1 (human, bovine, dog, mouse, porcine, rat) (CAS 117399-94-7)
- Big Endothelin-2 (1-37), human (CAS 132699-72-0)
- Big Endothelin-1 (human) (CAS 120796-97-6)
- Big Endothelin-1 (1-39), rat (CAS 135842-15-8)
- Big Endothelin-1 (1-39), porcine (CAS 124834-83-9)
- Big Endothelin-1 (porcine) (CAS 120796-99-8)
- Big Endothelin-2 (human) ammonium acetate salt (CAS 151853-67-7)
Recommended Standards
- Diazo Biotin-PEG3-alkyne (CAS 1884349-58-9)
- Novokinin (CAS 358738-77-9)
- Meropenem Impurity 41 (CAS CATO-C4X-130941)
- (R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)(methyl)amino)-3-(4-(tert-butoxy)phenyl)propanoic acid (CAS 1799443-50-7)
- 8-Oxa-2-azaspiro[4.5]decane-1,3-dione (CAS 90607-23-1)
- Methyl 2-([1,1'-biphenyl]-4-yl)-2-methylpropanoate (CAS 81770-34-5)
- Rel-(1R,2R)-2-(o-tolyloxy)cyclobutan-1-ol (CAS 84525-26-8)
- 2-(4-(Dimethylamino)styryl)-3-ethylbenzo[d]thiazol-3-ium iodide (CAS 3028-97-5)
- 4-(4-Fluoroanilino)-3-nitrobenzoic acid (CAS 23764-56-9)
- Semaglutide impurity 250 (CAS CATO-C4X-2226250)
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