Methyl 3-chloro-4-cyclopropyl-2,4-dioxobutanoate CAS 942852-90-6
| CAS No. | 942852-90-6 |
| Molecular Formula | C8H9ClO4 |
| Molecular Weight | 204.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Methyl 3-chloro-4-cyclopropyl-2,4-dioxobutanoate.
Methyl 3-chloro-4-cyclopropyl-2,4-dioxobutanoate (CAS 942852-90-6), molecular formula C8H9ClO4 and molecular weight 204.61 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Methyl 3-chloro-4-cyclopropyl-2,4-dioxobutanoate (C8H9ClO4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 204.61 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Methyl 3-chloro-4-cyclopropyl-2,4-dioxobutanoate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H9ClO4 |
| Molecular Weight | 204.61 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
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Recommended Standards
- methyl 3-[3-(chloromethyl)-1,2,4-oxadiazol-5-yl]propanoate (CAS 500025-81-0)
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- 8-Chloro-4-oxo-1,4-dihydroquinoline-3-carbonitrile (CAS 71083-66-4)
- Cefoperazone Impurity 10 (CAS 59703-00-3)
- 1’H-Spiro[piperidine-4,4’-quinazolin]-2’(3’H)-one (CAS 635713-68-7)
- 3-(Benzyloxy)-1-((trimethylsilyl)oxy)cyclobutane-1-carbonitrile (CAS 2151640-59-2)
- BTZ2F26-2Br (CAS 1916476-35-1)
- 5-(2,5-Dihydroxybenzylamino)-2-hydroxybenzoic Acid (CAS 125697-93-0)
- N1-(2-bromoethyl)-2-methyl-2-{[5-(trifluoromethyl)-2-pyridyl]sulphonyl}propanamide (CAS 245671-81-2)
- 5,7-Dihydro-4H-purin-6-ol (CAS 98325-50-9)
- 2-(1,3-Dioxoisoindolin-2-yl)ethyl acrylate (CAS 15458-78-3)
- 2-(2-Chloro-4-fluoro-5-methylphenyl)acetonitrile (CAS 1000513-29-0)
- N-(4-Methylphenyl)-11-(2-methylprop-2-enamido)undecanamide (CAS 866132-11-8)
- Semaglutide Impurity 163 (x TFA Salt) (CAS CATO-C4X-2226163)
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