(2-hydroxy-1-octadecanoyloxy-ethyl) octadecanoate 1188-58-5 DISTEARIN NSC75181 Octadecanoic acid 2-hydroxy-1-octadecanoyloxy-ethyl ester CAS 1188-58-5
| CAS No. | 1188-58-5 |
| Molecular Formula | C39H76O5 |
| Molecular Weight | 625.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (2-hydroxy-1-octadecanoyloxy-ethyl) octadecanoate 1188-58-5 DISTEARIN NSC75181 Octadecanoic acid 2-hydroxy-1-octadecanoyloxy-ethyl ester is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
(2-hydroxy-1-octadecanoyloxy-ethyl) octadecanoate 1188-58-5 DISTEARIN NSC75181 Octadecanoic acid 2-hydroxy-1-octadecanoyloxy-ethyl ester (CAS 1188-58-5) is a high-purity analytical reference standard with the molecular formula C39H76O5 and a molecular weight of 625.02 g/mol.
Structurally, (2-hydroxy-1-octadecanoyloxy-ethyl) octadecanoate 1188-58-5 DISTEARIN NSC75181 Octadecanoic acid 2-hydroxy-1-octadecanoyloxy-ethyl ester (C39H76O5) contains a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 625.02 g/mol, it falls into the high-molecular-weight range.
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.
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 | C39H76O5 |
| Molecular Weight | 625.02 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) | 2.0 |
| CAS Registry Year (est.) | 1957 |
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