methyl 4-(1-ethyl-3,5-dimethyl-1H-pyrazol-4-yl)-2,4-dioxobutanoate CAS 890624-55-2
| CAS No. | 890624-55-2 |
| Molecular Formula | C12H16N2O4 |
| Molecular Weight | 252.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
methyl 4-(1-ethyl-3,5-dimethyl-1H-pyrazol-4-yl)-2,4-dioxobutanoate (CAS 890624-55-2) is a high-purity analytical reference standard with the molecular formula C12H16N2O4 and a molecular weight of 252.27 g/mol.
methyl 4-(1-ethyl-3,5-dimethyl-1H-pyrazol-4-yl)-2,4-dioxobutanoate (C12H16N2O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), methyl 4-(1-ethyl-3,5-dimethyl-1H-pyrazol-4-yl)-2,4-dioxobutanoate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C12H16N2O4 |
| Molecular Weight | 252.27 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Recommended Standards
- Methyl 4-((tert-butoxycarbonyl)amino)nicotinate (CAS 280115-84-6)
- Methyl 4-(butylamino)-3-nitrobenzoate (CAS 234751-01-0)
- Methyl 3-(butylamino)-4-nitrobenzoate (CAS 597562-38-4)
- Methyl 4-(isobutylamino)-3-nitrobenzoate (CAS 234751-00-9)
- 4-Fluoro-3-pyrrolidinobenzaldehyde (CAS 1197193-31-9)
- 5-(Chloromethyl)isoquinoline hydrochloride (CAS 80278-68-8)
- 4-{[(3-chlorophenyl)amino]methylidene}-4,5-dihydro-1H-pyrazol-5-one (CAS 338777-75-6)
- Dibutyl (2-hydroxypropan-2-yl)phosphonate (CAS 109632-36-2)
- 4-Phenyl-5-(phenylamino)-4H-1,2,4-triazole-3-thiol (CAS 14132-84-4)
- 4-(2-Ethynylcyclopropyl)benzonitrile (CAS 2735014-82-9)
- 3-Amino-2-hydroxyheptanamide hydrochloride (CAS 1037828-73-1)
- 3-(((9H-Fluoren-9-yl)methoxy)carbonyl)-5-(methoxycarbonyl)-3-azabicyclo[3.1.1]heptane-1-carboxylic acid (CAS 2580228-29-9)
- Perfluoropropane (CAS 76-19-7)
- Dulaglutide (CAS 923950-08-7)
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