Sorbitan sesquistearate CAS 51938-44-4
| CAS No. | 51938-44-4 |
| Molecular Formula | 2*C18H36O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Sorbitan sesquistearate (CAS 51938-44-4) is a high-purity analytical reference standard with the molecular formula C18H36O2C6H12O5 and a molecular weight of 448.64 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, Sorbitan sesquistearate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 448.64 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Sorbitan sesquistearate 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 | 2*C18H36O2 3*C6H12O5 |
| Molecular Weight | 448.64 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1971 |
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