4-Chloro-2-methyl-2-butanol CAS 1985-88-2
| CAS No. | 1985-88-2 |
| Molecular Formula | C5H11ClO |
| Molecular Weight | 122.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 122.59 g/mol gives 4-Chloro-2-methyl-2-butanol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Chloro-2-methyl-2-butanol (CAS 1985-88-2) is a high-purity analytical reference standard with the molecular formula C5H11ClO and a molecular weight of 122.59 g/mol.
Owing to a hydroxyl group, an ether linkage, chlorine substitution, 4-Chloro-2-methyl-2-butanol is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 122.59 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C5H11ClO |
| Molecular Weight | 122.59 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 | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 1-Chloro-3-methoxy-2-methylpropane (CAS 100449-90-9)
- 1-Chloro-4-methoxybutane (CAS 17913-18-7)
- 1-Chloro-3-ethoxypropane (CAS 36865-38-0)
- 1-chloro-3-methylbutan-2-ol (CAS 55033-10-8)
- 3-Chloro-2-methylbutan-2-ol (CAS 21326-62-5)
- 4-Chloro-1-pentanol (CAS 35096-45-8)
- 4-chloro-2-methyl-butan-1-ol (CAS 38300-73-1)
- 5-Chloro-1-pentanol (CAS 5259-98-3)
Recommended Standards
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- Ibuprofen Impurity 89 (CAS 13401-56-4)
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