2-(Chloromethyl)-2-methyl-1,3-dioxolane CAS 4469-49-2
| CAS No. | 4469-49-2 |
| Molecular Formula | C5H9ClO2 |
| Molecular Weight | 136.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-(Chloromethyl)-2-methyl-1,3-dioxolane is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 2-(Chloromethyl)-2-methyl-1,3-dioxolane (CAS 4469-49-2), a certified reference material (molecular formula C5H9ClO2, MW 136.58 g/mol) for analytical method development and quality control.
Structurally, 2-(Chloromethyl)-2-methyl-1,3-dioxolane (C5H9ClO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. 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 136.58 g/mol, it falls into the low-molecular-weight range. 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 | C5H9ClO2 |
| Molecular Weight | 136.58 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) | 1.0 |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
Related Chloromethyl Standards
- 4-Chloromethyl-[1,3]dioxane (CAS 1121-62-6)
- [3-(chloromethyl)oxetan-3-yl]methanol (CAS 4351-77-3)
- 2-(Chloromethyl)-1,3-dioxane (CAS 5695-72-7)
- 2-(Chloromethyl)-1,4-dioxane (CAS 21048-16-8)
- 5-(Chloromethyl)-1,3-dioxane (CAS 61728-98-1)
- Chloromethyl Isobutyrate (CAS 61644-18-6)
- Chloromethyl Butyrate (CAS 33657-49-7)
- 3-(Chloromethyl)pentan-3-ol (CAS 15642-93-0)
Recommended Standards
- 2-(Propan-2-yloxy)acetyl chloride (CAS 56680-71-8)
- 2-Hydroxy-2-methylbutyroyl chloride (CAS 876944-75-1)
- 2-(2-Chloroethyl)-1,3-dioxolane (CAS 4362-36-1)
- 3-chloro-1,2,4-triazin-5-amine (CAS 57857-38-2)
- 5-Bromo-4-methyloxazole (CAS 929094-30-4)
- Methyl (3-cyanobenzyl)glycinate (CAS 1019627-51-0)
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- Trisbromoneopentyl Alcohol (CAS 36483-57-5)
- NAN-190 hydrobromide, 98% (CAS 115338-32-4)
- methyl 7-fluoro-2-oxo-3H-1,3-benzoxazole-5-carboxylate (CAS 2117390-48-2)
- 2-Fluoro-2,3-dihydro-1h-inden-1-one (CAS 700-76-5)
- 5-Piperazin-1-ylmethyl-furan-2-carboxylic acid (CAS 878431-40-4)
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