4-Cyclopropyl-3-oxo-butyric acid methyl ester CAS 251635-21-9
| CAS No. | 251635-21-9 |
| Molecular Formula | C8H12O3 |
| Molecular Weight | 156.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-Cyclopropyl-3-oxo-butyric acid methyl ester 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.
4-Cyclopropyl-3-oxo-butyric acid methyl ester (CAS 251635-21-9) is a high-purity analytical reference standard with the molecular formula C8H12O3 and a molecular weight of 156.18 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, 4-Cyclopropyl-3-oxo-butyric acid methyl ester is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 156.18 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.
Physical & Chemical Properties
| Molecular Formula | C8H12O3 |
| Molecular Weight | 156.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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.) | 2025 |
Related Cyclopropyl Standards
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- Ethyl 2-cyclopropyl-3-oxopropanoate (CAS 224581-83-3)
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Recommended Standards
- 4-Cyclobutyl-4-oxobutyric acid (CAS 889953-85-9)
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- 4-Amino-1,5-dimethyl-2,5-dihydro-1H-pyrrole-3-carboxylic acid (CAS 773099-89-1)
- 4-Ethyl-4-methyldihydro-2H-pyran-2,6(3H)-dione (CAS 6970-57-6)
- Methyl n-(2-aminoethyl)-n-methylglycinate (CAS 1248051-45-7)
- Tert-butyl 7-oxo-7H-spiro[furo[3,4-b]pyridine-5,4'-piperidine]-1'-carboxylate (CAS 1187829-90-8)
- 4-(Thiophen-2-yl)-1H-pyrrole-2-carbaldehyde (CAS 541501-20-6)
- H-D-Phe-D-Phe-Leu-D-Lys-γ-Pip-OH (CAS CATO-CPTD788704)
- 5,5-Dimethyl-3-[(1H-1,2,3,4-tetrazol-5-yl)amino]cyclohex-2-en-1-one (CAS 1021273-24-4)
- 7-Bromo-2-butylphthalazin-1(2H)-one (CAS 1437484-58-6)
- 4-Fluoro-3-hydroxy-7-nitro 1H-indazole (CAS 501650-69-7)
- 6-(4-Methoxybenzenesulfonyl)pyridine-3-carboxylic acid (CAS 1031599-54-8)
- 2-Chloro-5-(difluoromethyl)pyridine-3,4-diol (CAS 1805282-94-3)
- Semaglutide Impurity 148 (CAS CATO-C4X-2226148)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com