Propargyl-PEG3-O-CH2-NHS ester CAS 2144777-76-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 2144777-76-2 |
| Molecular Formula | C15H21NO8 |
| Molecular Weight | 343.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Propargyl-PEG3-O-CH2-NHS ester (CAS 2144777-76-2) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C15H21NO8. Molecular weight: 343.33 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C15H21NO8 |
| Molecular Weight | 343.33 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 1 |
Related Propargyl Standards
- Propargyl-PEG3-1-o-(b-cyanoethyl-N,N-diisopropyl)phosphoramidite (CAS 1391728-01-0)
- Propargyl-PEG6-N3 (CAS 1198080-03-3)
- Propargyl-PEG4-O-C1-Boc (CAS 2098489-63-3)
- Propargyl-PEG5-Br (CAS 1287660-83-6)
- Propargyl-PEG6-acid (CAS 1951438-84-8)
- Propargyl-PEG6-SH (CAS 1422540-91-7)
- Propargyl-PEG5-Ms (CAS 1036204-62-2)
- Propargyl-NH-PEG3-C2-NHS ester (CAS 1214319-94-4)
Recommended Standards
- Phenylephrine Glucuronide (CAS 2021255-73-0)
- Erlotinib Impurity 69 (CAS CATO-C4X-106969)
- N-Allyl-2-((1-(2-(trifluoromethyl)phenyl)-1H-tetrazol-5-yl)thio)acetamide (CAS 941876-73-9)
- 7-Octynoic Acid (CAS 10297-09-3)
- Methyl 3-(2-morpholinoethoxy)benzoate (CAS 249937-00-6)
- 2,5-Dichloro-1,4-benzoquinone (CAS 615-93-0)
- 2-AZetidin-3-yl-6-methylpyridin-4-ol bis(trifluoroacetate) (CAS 2108457-85-6)
- tert-Butyl 2-{[(tert-Butyldiphenylsilyl)oxy]methyl}-3-formylazetidine-1-carboxylate (CAS 1638771-11-5)
- tert-Butyl(((3aR,4S,6aR)-2,2-dimethyl-6-((trityloxy)methyl)-4,6a-dihydro-3aH-cyclopenta[d][1,3]dioxol-4-yl)oxy)diphenylsilane (CAS 2241016-47-5)
- Immunstimulating Peptide, human (CAS 94773-24-7)
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