Mal-PEG5-NHS ester CAS 1807537-42-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1807537-42-3 |
| Molecular Formula | C21H30N2O11 |
| Molecular Weight | 486.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Mal-PEG5-NHS ester (CAS 1807537-42-3) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C21H30N2O11. Molecular weight: 486.47 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C21H30N2O11 |
| Molecular Weight | 486.47 g/mol |
| Appearance | Pale yellow to 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 2 |
Recommended Standards
- Butanedioic acid, 2,3-dihydroxy- (2R,3R)-, 1,1′-(1,4-phenylenedi-2,1-ethanediyl) 4,4′-diethyl ester (CAS 1402918-72-2)
- 1,6-Difluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-((triisopropylsilyl)ethynyl)naphthalen-2-oll (CAS 2763159-88-0)
- 3-(5-Hydroxy-1H-indol-3-yl)-2-(2-((6-oxo-6H-benzo[c]chromen-3-yl)oxy)propanamido)propanoic acid (CAS 1214864-54-6)
- 4-[Oxazolo[5,4-b]pyridin-2-yl]phenylacetic Acid (CAS 52334-44-8)
- 6-benzyloxy-1H-indole-3-sulfonic acid (CAS 2361020-89-3)
- Methyl 3-(4-Chlorophenyl)-3-oxopropionate (CAS 22027-53-8)
- 4-(Benzo[d]thiazol-2-yl)-1H-1,2,3-triazol-5-amine (CAS 553681-84-8)
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- N-cyclopropyl-2-(thiomorpholin-3-yl)-N-(thiophen-3-ylmethyl)acetamide hydrochloride (CAS 1423034-04-1)
- Semaglutide Impurity 124 (CAS CATO-C4X-2226124)
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