1,1'-[(1-Methyl-1,2-ethanediyl)bis(oxy)]bis-2-propanol CAS 1638-16-0
| CAS No. | 1638-16-0 |
| Molecular Formula | C9H20O4 |
| Molecular Weight | 192.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1,1'-[(1-Methyl-1,2-ethanediyl)bis(oxy)]bis-2-propanol 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.
1,1'-[(1-Methyl-1,2-ethanediyl)bis(oxy)]bis-2-propanol (CAS 1638-16-0), molecular formula C9H20O4 and molecular weight 192.25 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, 1,1'-[(1-Methyl-1,2-ethanediyl)bis(oxy)]bis-2-propanol is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 192.25 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.
Physical & Chemical Properties
| Molecular Formula | C9H20O4 |
| Molecular Weight | 192.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1957 |
Related Methyl Standards
- 1, 2,2'-(1,2-ethanediyl)bis[2-methyl- 1, 2,2'-ethylenebis[2-methyl- 2, cyclic bis(1,2-ethanediyl acetal) 944-26-3 NSC-250348 NSC250348 (CAS 944-26-3)
- (1-methyl-1,2-ethanediyl)bis-Phosphonic acid (CAS 4672-40-6)
- 2,2′-(1,2-Ethanediyl)bis[4,5-dihydro-4,4-dimethyloxazole] (CAS 19896-18-5)
- 1,2-Ethanediyl Bismethanethiosulfonate (CAS 55-95-8)
- (1-Methyl-1,2-ethanediyl)bis-Carbamodithioic Acid Dimethyl Ester (CAS 80555-60-8)
- 1,1-(1,2-Ethanediyl)bis[1-methyl-silane] (CAS 4405-22-5)
- 1,1-(1,2-Ethanediyl)bis[4-(2-methylpropyl)benzene (CAS 119809-70-0)
- [[4,4'-[(1-Methyl-1,2-ethanediyl)di(nitrilo-κN)]bis[2-pentanonato-κO]](2-)]copper (CAS 14050-29-4)
Recommended Standards
- 1-(3-Isopropyl-4-methoxyphenyl)ethanone (CAS 1634-64-6)
- tert-Butyl 2-Phenylacetate (CAS 16537-09-0)
- 2-Methyl-3-phenylpentanoic acid (CAS 1616-69-9)
- Tert-butyl 2-methylbenzoate (CAS 16537-18-1)
- Ethyl 2-(4-bromo-2-methoxyphenyl)-2-methylpropanoate (CAS 1563013-85-3)
- Cyclohexyl butyrate (CAS 1551-44-6)
- 14333-06-3 Calcium, isotope of mass 43 Calcium-43 43Ca (CAS 14333-06-3)
- 1-(Propylsulfonyl)propan-2-one (CAS 91313-63-2)
- 4,4'-(((3R,4R)-Tetrahydrofuran-3,4-diyl)bis(methylene))bis(2-methoxyphenol) (CAS 29388-33-8)
- 1,5-Diamino-4-(4-(3,4-dimethoxyphenyl)thiazol-2-yl)-1H-pyrrol-3(2H)-one (CAS 1017420-24-4)
- N-Cyclooctyl-2-[(3,4,4-trifluorobut-3-en-1-yl)sulfanyl]pyridine-3-carboxamide (CAS 478067-85-5)
- Indatraline hydrochloride (CAS 96850-13-4)
- Colchicine Impurity 8 (CAS 6877-25-4)
- Serpent Peptide 2AcOH (CAS 823202-99-9(free base))
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