2-Chloro-1-cyclobutyl-butane-1,3-dione CAS 1020732-21-1
| CAS No. | 1020732-21-1 |
| Molecular Formula | C8H11ClO2 |
| Molecular Weight | 174.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Chloro-1-cyclobutyl-butane-1,3-dione 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-Chloro-1-cyclobutyl-butane-1,3-dione (CAS 1020732-21-1), a certified reference material (molecular formula C8H11ClO2, MW 174.62 g/mol) for analytical method development and quality control.
Based on its molecular formula C8H11ClO2, 2-Chloro-1-cyclobutyl-butane-1,3-dione contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 174.62 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C8H11ClO2 |
| Molecular Weight | 174.62 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 | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- (5-Chloro-2-methoxyphenyl)methanol (CAS 7035-10-1)
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- 2-chloro-1-(3-oxabicyclo[4.1.0]heptan-7-yl)ethanone (CAS 2452340-85-9)
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- 2-Amino-n-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)acetamide (CAS 938338-47-7)
- Pyrazolo[1,5-a]pyrazin-4-amine (CAS 1565419-19-3)
- Ethyl 3,3-dimethyl-4-oxocyclohexane-1-carboxylate (CAS 1071695-05-0)
- 2-(4-Amino-2-chloromethylanilino)-1-ethanol (CAS 1097827-61-6)
- 1-Ethyl-1h-pyrazole-3-carbonitrile (CAS 1006471-40-4)
- Insulin Degludec Impurity 1 (CAS 843666-26-2)
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