Ethyl 5-amino-1-(2,4-dichlorophenyl)-1H-pyrazole-4-carboxylate CAS 83279-66-7
| CAS No. | 83279-66-7 |
| Molecular Formula | C12H11Cl2N3O2 |
| Molecular Weight | 300.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 5-amino-1-(2,4-dichlorophenyl)-1H-pyrazole-4-carboxylate (CAS 83279-66-7), molecular formula C12H11Cl2N3O2 and molecular weight 300.14 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H11Cl2N3O2, Ethyl 5-amino-1-(2,4-dichlorophenyl)-1H-pyrazole-4-carboxylate contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 300.14 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 Ethyl 5-amino-1-(2,4-dichlorophenyl)-1H-pyrazole-4-carboxylate 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 | C12H11Cl2N3O2 |
| Molecular Weight | 300.14 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Ethyl Standards
- Ethyl 5-amino-1-(2,4-dichlorophenyl)-1H-pyrazole-3-carboxylate (CAS 1264039-24-8)
- Ethyl 5-amino-1-(2,5-dichlorophenyl)-1H-pyrazole-4-carboxylate (CAS 1264041-82-8)
- Ethyl 5-amino-1-(3,4-dichlorophenyl)-1H-pyrazole-3-carboxylate (CAS 1264043-82-4)
- Ethyl 5-amino-1-(2,3-dichlorophenyl)pyrazole-4-carboxylate (CAS 1285132-66-2)
- Ethyl 5-amino-4-chloro-1-(4-chlorophenyl)-1H-pyrazole-3-carboxylate (CAS 1427012-05-2)
- 3-Amino-3-(5-(2,4-dichlorophenyl)furan-2-yl)propanoic acid (CAS 773125-55-6)
- 3-Amino-3-(5-(2,5-dichlorophenyl)furan-2-yl)propanoic acid (CAS 773125-95-4)
- 3-Amino-3-(5-(3,4-dichlorophenyl)furan-2-yl)propanoic acid (CAS 773125-94-3)
Recommended Standards
- Ethyl 5,7-dichloro-8-methoxyquinoline-3-carboxylate (CAS 648897-24-9)
- Ethyl 5-amino-1-(3,4-dichlorophenyl)-1H-pyrazole-4-carboxylate (CAS 636568-07-5)
- Ethyl 5-(2,4-dichlorobenzyl)oxazole-4-carboxylate (CAS 888739-18-2)
- N-(2,6-Dichlorophenyl)-2-(5-methyl-1,2,4-oxadiazol-3-yl)propanamide (CAS 923972-99-0)
- N-(2-bromo-5-methylphenyl)acetamide (CAS 126759-48-6)
- (4-Pentylbicyclo[2.2.2]octan-1-yl)methyl 4-methylbenzenesulfonate (CAS 81472-47-1)
- 1-(5-Bromo-6-chloro-4-(trifluoromethyl)-pyridin-2-yl)piperazine (CAS 1089330-38-0)
- Ethyl 2,6-dihydroxy-4-methylbenzoate (CAS 90904-35-1)
- Thiomorpholine-4-carboxamide (CAS 6007-63-2)
- 4-(4-Cyclohexylphenyl)-2-(1-methyl-1H-indol-3-yl)-4-oxobutanoic acid (CAS 937604-92-7)
- BiM-23056 (CAS 150155-61-6)
- 9-(Bromofluoromethylene)-9H-fluorene (CAS 781-57-7)
- 1-(Bromomethyl)-4-(sec-butoxy)benzene (CAS 1094272-92-0)
- Semaglutide Impurity 187 (CAS CATO-C4X-2226187)
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