Azido-PEG20-alcohol CAS 1637297-21-2
| CAS No. | 1637297-21-2 |
| Molecular Formula | C40H81N3O20 |
| Molecular Weight | 924.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 924.08 g/mol gives Azido-PEG20-alcohol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Azido-PEG20-alcohol (CAS 1637297-21-2) is a high-purity analytical reference standard with the molecular formula C40H81N3O20 and a molecular weight of 924.08 g/mol.
Azido-PEG20-alcohol (C40H81N3O20) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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), Azido-PEG20-alcohol 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 | C40H81N3O20 |
| Molecular Weight | 924.08 g/mol |
| 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 | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 3 |
Related Azido Standards
- N-(Azido-PEG4)-N-bis (PEG4-NHS ester)(97%) (CAS 2182601-77-8)
- 2-[N2-(4-Azido-2,3,5,6-tetrafluorobenzoyl)-N6-(6 -biotinamidocaproyl)-L-lysinyl]ethyl 2-Carboxyethyl Disulfide (CAS 1356841-73-0)
- N-(Azido-PEG4)-N-bis(PEG4-t-butyl ester) (CAS 2093152-79-3)
- N-(Azido-PEG4)-N-bis(PEG4-NHS ester) (CAS 2353409-90-0)
- N-(Azido-PEG3)-N-Fluorescein-PEG4-acid (CAS 2100306-72-5)
- 2-[N2-(4-Azido-2,3,5,6-tetrafluorobenzoyl)-N6-(6-biotinamidocaproyl)-L-lysinyl]ethyl Methanethiosulfonate (CAS 1356383-18-0)
- N-(Azido-PEG3)-N-bis(PEG4-Boc) (CAS 2353409-58-0)
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