Ethyl 1-(2-chlorophenyl)-5-cyano-1H-pyrazole-3-carboxylate CAS 1269291-83-9
| CAS No. | 1269291-83-9 |
| Molecular Formula | C13H10ClN3O2 |
| Molecular Weight | 275.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Ethyl 1-(2-chlorophenyl)-5-cyano-1H-pyrazole-3-carboxylate (CAS 1269291-83-9) is a high-purity analytical reference standard with the molecular formula C13H10ClN3O2 and a molecular weight of 275.69 g/mol.
Based on its molecular formula C13H10ClN3O2, Ethyl 1-(2-chlorophenyl)-5-cyano-1H-pyrazole-3-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 275.69 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).
CATO manufactures Ethyl 1-(2-chlorophenyl)-5-cyano-1H-pyrazole-3-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 | C13H10ClN3O2 |
| Molecular Weight | 275.69 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
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- tert-Butyl methyl iminodicarboxylate (CAS 66389-76-2)
- 3-{[6-(3-Methylphenyl)pyridazin-3-yl]-amino}benzoic acid (CAS 1119451-53-4)
- N-(3-(2-Methylthiazol-4-yl)phenyl)pyrimidine-2-carboxamide (CAS 1251706-34-9)
- 4-(3-Pyridyloxy)benzaldehyde (CAS 87626-41-3)
- Cyclopentolate Hydrochloride (CAS 5870-29-1)
- Lignan J1(P) (CAS 27041-98-1)
- (2-Ethylphenyl)(thiophen-2-yl)methanol (CAS 1341059-00-4)
- Methyl 2-(4-(aminomethyl)phenyl)acetate (CAS 444807-46-9)
- Tirzepatide Impurity 1 (CAS 2460751-66-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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