Polyoxyethylene (25) Propylene Glycol Stearate CAS 37231-60-0
| CAS No. | 37231-60-0 |
| Molecular Formula | C18H36O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 386.62 g/mol gives Polyoxyethylene (25) Propylene Glycol Stearate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Polyoxyethylene (25) Propylene Glycol Stearate (CAS 37231-60-0), a certified reference material (molecular formula C18H36O2C3H6OC2H4O, MW 386.62 g/mol) for analytical method development and quality control.
Structurally, Polyoxyethylene (25) Propylene Glycol Stearate (C18H36O2C3H6OC2H4O) contains a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 386.62 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C18H36O2 C3H6O C2H4O |
| Molecular Weight | 386.62 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1967 |
Related Polyoxyethylene Standards
Recommended Standards
- 2-iodo-6-methylpyridin-3-ol 23003-30-7 3-Hydroxy-2-iodo-6-methylpyridine A4877 (CAS 23003-30-7)
- 4-(1,3-Dioxolan-2-yl)-4-trifluoromethyl-benzophenone (CAS 898760-55-9)
- (2E)-1-(2,5-Dichlorophenyl)-3-(4-ethylphenyl)prop-2-en-1-one (CAS 561280-18-0)
- (S)-4,4-Difluoropyrrolidine-2-carboxylic acid hydrochloride (CAS 1588480-37-8)
- n-(4-(Dimethylamino)phenyl)-2-hydroxynicotinamide (CAS 923208-09-7)
- Dichloroacetonitrile (CAS 3018-12-0)
- 2,2-dimethylhexan-3-amine hydrochloride (CAS 1864063-57-9)
- N-(4,5-Dimethylthiophen-2-yl)benzamide (CAS 51948-21-1)
- (2S)-2-(4-(3-Amino-1,9-dioxo-1,2,5,6,6a,7-hexahydroimidazo[1,5-f]pteridin-8(9H)-yl)benzamido)pentanedioic acid (CAS 10538-99-5)
- Insulin Pork(≥27 USP units/mg) (CAS 12584-58-6)
Why CATO?
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