Propynol Ethoxylate CAS 3973-18-0
| CAS No. | 3973-18-0 |
| Molecular Formula | C5H8O2 |
| Molecular Weight | 100.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Propynol Ethoxylate (CAS 3973-18-0), molecular formula C5H8O2 and molecular weight 100.12 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, Propynol Ethoxylate is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 100.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
As a certified reference material (CRM), Propynol Ethoxylate 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 | C5H8O2 |
| Molecular Weight | 100.12 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| 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.) | 1958 |
Recommended Standards
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- n1,n1-Diethyl-n2-(tetrahydro-2h-pyran-4-yl)ethane-1,2-diamine (CAS 1157008-42-8)
- Ethyl 7-oxo-1,7-dihydropyrazolo[1,5-a]pyrimidine-5-carboxylate (CAS 1174064-69-7)
- 3-(2-Chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-1,1-dimethylurea (CAS 2246654-50-0)
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- 1'-Neopentylspiro[indoline-3,3'-pyrrolidine] (CAS 1491839-28-1)
- Tirzepatide Impurity 16 (CAS CATO-C4X-324016)
Why CATO?
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