4,4-Dimethyl-5-methylidene-1,3-dioxolan-2-one CAS 4437-80-3
| CAS No. | 4437-80-3 |
| Molecular Formula | C6H8O3 |
| Molecular Weight | 128.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4,4-Dimethyl-5-methylidene-1,3-dioxolan-2-one is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 4,4-Dimethyl-5-methylidene-1,3-dioxolan-2-one (CAS 4437-80-3), a certified reference material (molecular formula C6H8O3, MW 128.13 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, 4,4-Dimethyl-5-methylidene-1,3-dioxolan-2-one is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 128.13 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C6H8O3 |
| Molecular Weight | 128.13 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
Related Dimethyl Standards
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Recommended Standards
- 3-Oxopyrrolidine-1-carboxamide (CAS 740055-86-1)
- 4-Amino-6-methyl-5,6-dihydro-1,2,4-triazin-3(4H)-one (CAS 762217-20-9)
- 3-Oxocyclobutyl Acetate (CAS 63930-59-6)
- 4-Ethylpyrazolidine-3,5-dione (CAS 23876-80-4)
- 1-Methyl-3,4-dihydro-1H-pyrimido[1,6-a]pyrimidine-6,8(2H,7H)-dione (CAS 1420362-19-1)
- 2-(2-Bromoallyl)-1-methoxy-4-methylbenzene (CAS 951894-84-1)
- tert-Butyl 2-(4-cyanophenyl)-1H-indole-1-carboxylate (CAS 153432-73-6)
- N-(5-ethylthiazol-2-yl)acetamide (CAS 6593-87-9)
- 4-Fluorophenylboronic Acid Pinacol Ester (CAS 214360-58-4)
- Ethyl 2-chloro-3-cyano-4-fluorobenzoate (CAS 1807006-43-4)
- 2-(4-Methyl-pyridin-2-ylsulfanylmethyl)-pyrrolidine-1-carboxylic acid tert-butyl ester (CAS 1389313-27-2)
- (3-Fluoro-4-(3-(pyrrolidin-1-yl)propoxy)phenyl)boronic acid (CAS 944279-29-2)
- Methyl 2-hydroxy-3-(2-methylphenyl)propanoate (CAS 1181405-14-0)
- Peptide Impurity 09 X TFA Salt (CAS CATO-CPTD788809)
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