Bis-(m-PEG8-amido)-hexanoic acid CAS 2353409-77-3
| CAS No. | 2353409-77-3 |
| Molecular Formula | C42H82N2O22 |
| Molecular Weight | 967.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 967.10 g/mol gives Bis-(m-PEG8-amido)-hexanoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Bis-(m-PEG8-amido)-hexanoic acid (CAS 2353409-77-3), molecular formula C42H82N2O22 and molecular weight 967.10 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Bis-(m-PEG8-amido)-hexanoic acid (C42H82N2O22) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 967.10 g/mol, it falls into the 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C42H82N2O22 |
| Molecular Weight | 967.10 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 | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1999 |
| Nitrogen Atoms | 2 |
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