27964-99-4 Poly-D-lys Poly-D-lysine [[(1S)-5-amino-1-[?]oxycarbonyl-pentyl]amino] CAS 27964-99-4
| CAS No. | 27964-99-4 |
| Molecular Formula | C8H18N2O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 27964-99-4 Poly-D-lys Poly-D-lysine [[(1S)-5-amino-1-[?]oxycarbonyl-pentyl]amino] (CAS 27964-99-4), a certified reference material (molecular formula C8H18N2OBr, MW 238.15 g/mol) for analytical method development and quality control.
The molecular framework of 27964-99-4 Poly-D-lys Poly-D-lysine [[(1S)-5-amino-1-[?]oxycarbonyl-pentyl]amino] (C8H18N2OBr) is characterized by an amide group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 27964-99-4 Poly-D-lys Poly-D-lysine [[(1S)-5-amino-1-[?]oxycarbonyl-pentyl]amino] meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C8H18N2O Br |
| Molecular Weight | 238.15 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 0.5 |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- 3-{[(2-methyl-1,3-thiazol-4-yl)methyl]sulfanyl}-5-[(E)-2-(phenylamino)ethenyl]-1,2-thiazole-4-carbonitrile (CAS 338778-89-5)
- (2R,5R)-1,6-Diphenylhexane-2,5-diamine dihydrochloride, 97% (CAS 1247119-31-8)
- 2-Hydroxyacetamide (CAS 598-42-5)
- Cyclopropyl(1H-pyrrolo[2,3-b]pyridin-6-yl)methanone (CAS 942261-69-0)
- 2-Chloro-N-(3-cyano-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl)acetamide (CAS 304685-87-8)
- (S)-1-(2-bromo-4-(trifluoromethyl)phenyl)ethan-1-ol (CAS 2227642-96-6)
- L-Menthyl L-lactate (CAS 61597-98-6)
- 3,5-Dimethoxycinnamide (CAS 124805-94-3)
- Cefminox Impurity 8 (CAS CATO-C4X-19268)
- Protein Kinase C (alpha) Peptide (CAS 159939-84-1)
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 18665070610 / Nicole.chen@cato-chem.com