Mal-PEG5-Boc CAS 2250216-91-0
| CAS No. | 2250216-91-0 |
| Molecular Formula | C21H35NO9 |
| Molecular Weight | 445.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 445.50 g/mol gives Mal-PEG5-Boc distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Mal-PEG5-Boc (CAS 2250216-91-0), molecular formula C21H35NO9 and molecular weight 445.50 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Mal-PEG5-Boc (C21H35NO9) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. 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. 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.
CATO manufactures Mal-PEG5-Boc under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C21H35NO9 |
| Molecular Weight | 445.50 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 1 |
Recommended Standards
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- 5-Bromo-2-(1-piperazinyl)pyrimidine (CAS 99931-82-5)
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