[D-Pen2, Pen5] Enkephalin CAS 88373-72-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 88373-72-2 |
| Molecular Formula | C30H39N5O7S2 |
| Molecular Weight | 645.80 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
[D-Pen2, Pen5] Enkephalin (CAS 88373-72-2) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C30H39N5O7S2. Molecular weight: 645.80 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C30H39N5O7S2 |
| Molecular Weight | 645.80 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 2 |
Recommended Standards
- (D-Pen2,D-Pen5)-Enkephalin (CAS 88373-73-3)
- (S)-2,5-bis((tert-Butoxycarbonyl)(3-((tert-butoxycarbonyl)amino)propyl)amino)pentanoic acid (CAS 119798-08-2)
- 5-(2,4-bis(benzyloxy)-5-isopropylphenyl)-N-ethyl-4-(4-(morpholinomethyl)phenyl)isoxazole-3-carboxamide (CAS 747414-24-0)
- N1,N5-Diphenylglutaramide (CAS 6833-02-9)
- 2-(4-Fluorophenyl)-6-(trifluoromethyl)pyrazolo[1,5-a]pyridine (CAS 372122-55-9)
- Ibuprofen impurity 133 (CAS CATO-C4X-1082133)
- 3-Iodo-1H,1H,2H,2H,3H,4H,4H-perfluorodecan-1-ol (CAS 16083-68-4)
- 2-(Chloromethyl)-1,1-dimethylcyclopentane (CAS 77437-95-7)
- Methyl 3,4-dimethyl-2-thioxo-2,3-dihydrothiazole-5-carboxylate (CAS 473827-75-7)
- [His]1-Acetylated Semaglutide (CAS CATO-C4X-2226219)
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