3-Chloro-1,1-diethoxy-2-methylpropane CAS 21938-19-2
| CAS No. | 21938-19-2 |
| Molecular Formula | C8H17ClO2 |
| Molecular Weight | 180.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 180.67 g/mol gives 3-Chloro-1,1-diethoxy-2-methylpropane distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-Chloro-1,1-diethoxy-2-methylpropane (CAS 21938-19-2) is a high-purity analytical reference standard with the molecular formula C8H17ClO2 and a molecular weight of 180.67 g/mol.
3-Chloro-1,1-diethoxy-2-methylpropane (C8H17ClO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C8H17ClO2 |
| Molecular Weight | 180.67 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Cl-containing |
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Recommended Standards
- 3-(4-Chloro-2-methylphenyl)-2-methyl-1-propene (CAS 951894-06-7)
- 4-Chlorobutyraldehyde Diethyl Acetal (CAS 6139-83-9)
- 3-(3-Chloro-4-methylphenyl)-2-methyl-1-propene (CAS 951888-04-3)
- 5-(1-chloroethyl)-2,3-dihydro-1H-indene (CAS 4228-22-2)
- 2-[1-(difluoromethyl)-1h-1,3-benzodiazol-2-yl]acetonitrile (CAS 929975-81-5)
- 4-(3-(Methylthio)phenyl)-1-propylpiperidin-4-ol (CAS 882737-40-8)
- (2R)-2-amino-2-benzo[d]furan-2-ylethan-1-ol (CAS 1213829-91-4)
- 1H-Imidazo[4,5-c]pyridine-4,6-diamine (CAS 167083-81-0)
- 4-(Difluoromethyl)-3-methoxy-5-(trifluoromethoxy)picolinic acid (CAS 1806776-16-8)
- 5-[(3-Chlorophenyl)sulfanyl]-1-methyl-3-phenyl-1H-pyrazole-4-carbonitrile (CAS 321998-36-1)
- N-(5-(3,5-Dimethoxyphenyl)-1,3,4-oxadiazol-2-yl)-3-(ethylsulfonyl)benzamide (CAS 886919-92-2)
- 4-Bromo-3-chloro-2-(difluoromethyl)-6-(trifluoromethyl)pyridine (CAS 1806919-93-6)
- benzyl 6-bromo-1,2-dihydrospiro[indole-3,4'-piperidine]-1'-carboxylate (CAS 473737-32-5)
- Semaglutide Impurity 165 (CAS CATO-C4X-2226165)
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