Propionyl-Amyloid b-Protein (31-34) amide CAS 256419-86-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 256419-86-0 |
| Molecular Formula | C23H43N5O5 |
| Molecular Weight | 469.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Propionyl-Amyloid b-Protein (31-34) amide (CAS 256419-86-0) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C23H43N5O5. Molecular weight: 469.62 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C23H43N5O5 |
| Molecular Weight | 469.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 5 |
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Recommended Standards
- Yttrium(III) iodide (CAS 13470-38-7)
- Rizatriptan EP Impurity A (CAS 887001-08-3)
- (S)-2-Amino-N-(2,2-diethoxyethyl)-N-phenethyl-4-phenylbutanamide (CAS 1222068-67-8)
- 3-(3-Fluorophenyl)prop-2-yn-1-ol (CAS 197239-54-6)
- 1-Piperidinecarboxylic acid, 4-(4-hydroxy-1-buten-1-yl)-, phenylmethyl ester (CAS 2007930-97-2)
- 3-Hydroxy-4-iodopyridine (CAS 188057-20-7)
- Halometasone Impurity 2 (CAS CATO-C4X-14462)
- Vanillactic acid (CAS 2475-56-1)
- (Triethoxysilyl)methyl methacrylate(stabilizedwithMEHQ) (CAS 5577-72-0)
- Semaglutide impurity 71 (CAS CATO-C4X-222671)
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