DBCO-PEG5-acid CAS 2764923-65-9
| CAS No. | 2764923-65-9 |
| Molecular Formula | C32H40N2O9 |
| Molecular Weight | 596.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including DBCO-PEG5-acid.
DBCO-PEG5-acid (CAS 2764923-65-9), molecular formula C32H40N2O9 and molecular weight 596.67 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, DBCO-PEG5-acid (C32H40N2O9) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 596.67 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), DBCO-PEG5-acid 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 | C32H40N2O9 |
| Molecular Weight | 596.67 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
| Nitrogen Atoms | 2 |
Related DBCO Standards
- DBCO-NHCO-PEG4-acid (CAS 1870899-46-9)
- DBCO-NHCO-PEG2-maleimide (CAS 2698339-31-8)
- DBCO-PEG6-amine (CAS 2353409-98-8)
- DBCO-NHCO-PEG4-NH-Boc (CAS 1255942-12-1)
- DBCO-PEG4-NH-Boc (CAS 2353410-17-8)
- N-DBCO-N-bis(PEG2-C2-acid) (CAS 2110449-00-6)
- DBCO-CONH-S-S-NHS ester (CAS 1435934-53-4)
- Dbco-peg4-acid (CAS 2110448-99-0)
Recommended Standards
- 1,4,5,8-Tetraamino-2,7-bis(4-butoxyphenoxy)anthracene-9,10-dione (CAS 88600-90-2)
- Dicoronylene (CAS 98570-53-7)
- 1,4,5,8-Tetraamino-2,7-bis(3-butoxyphenoxy)anthracene-9,10-dione (CAS 88600-88-8)
- Difluorantheno[4,3,2-abc:2',3',4'-klm]coronene (CAS 362051-19-2)
- 4-Amino-1-ethyl-3-methyl-1h-pyrazol-5-ol (CAS 1497108-81-2)
- 2-Amino-4-(4-octylphenyl)butan-1-ol (CAS 177260-59-2)
- Anilofos (CAS 64249-01-0)
- 3,6-Dihydro-2H-pyran (CAS 3174-74-1)
- 2-[2-(2-Bromo-4-methylphenoxy)ethyl]piperidinehydrochloride (CAS 1219981-33-5)
- 2-(Adamantan-1-yloxy)-1,1-dimethyl-ethylamine (CAS 695191-74-3)
- 2-Chloro-1-[4-(2-fluorobenzenesulfonyl)piperazin-1-yl]ethan-1-one (CAS 923204-90-4)
- Ceritinib Impurity 53 (CAS CATO-C4X-104853)
- tert-butyl 4-hydroxy-1-oxa-8-azaspiro[4.5]decane-8-carboxylate (CAS 757239-67-1)
- Semaglutide impurity 257 (CAS CATO-C4X-2226257)
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