ethyl 5-amino-1-(5-chloro-2-pyridinyl)-1H-pyrazole-4-carboxylate CAS 104909-58-2
| CAS No. | 104909-58-2 |
| Molecular Formula | C11H11ClN4O2 |
| Molecular Weight | 266.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies ethyl 5-amino-1-(5-chloro-2-pyridinyl)-1H-pyrazole-4-carboxylate (CAS 104909-58-2), a certified reference material (molecular formula C11H11ClN4O2, MW 266.68 g/mol) for analytical method development and quality control.
Based on its molecular formula C11H11ClN4O2, ethyl 5-amino-1-(5-chloro-2-pyridinyl)-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 266.68 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
As a certified reference material (CRM), ethyl 5-amino-1-(5-chloro-2-pyridinyl)-1H-pyrazole-4-carboxylate 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 | C11H11ClN4O2 |
| Molecular Weight | 266.68 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related ethyl Standards
- Ethyl 5-amino-1-(2-chlorophenyl)-1H-1,2,3-triazole-4-carboxylate (CAS 106748-15-6)
- ethyl 5-amino-4-(4-chlorophenyl)isoxazole-3-carboxylate (CAS 127919-66-8)
- 4-Amino-7-chloro-6-methoxyquinoline-3-carbohydrazide (CAS 1315351-56-4)
- 4-Amino-5-chloro-8-methoxyquinoline-3-carbohydrazide (CAS 1315374-21-0)
- 6-Amino-7-chloro-1-ethyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 1333247-30-5)
- 5-Amino-1-(3-chloro-4-methoxyphenyl)-1H-pyrazole-4-carboxamide (CAS 1416344-64-3)
- Ethyl 5-amino-4-chloro-1-(pyridin-2-yl)-1H-pyrazole-3-carboxylate (CAS 1427021-16-6)
- Ethyl 5-amino-4-chloro-1-(pyridin-4-yl)-1H-pyrazole-3-carboxylate (CAS 1427021-63-3)
Recommended Standards
- 5-(3-Chloro-4-ethoxyphenyl)-1H-pyrazole-3-carboxylic acid (CAS 1037719-40-6)
- 2-(2-Chlorophenoxy)-N-(4h-1,2,4-triazol-3-yl)propanamide (CAS 1050829-61-2)
- 2-Chloro-3-((4-nitrophenyl)amino)cyclohex-2-en-1-one (CAS 1022597-48-3)
- 1015844-55-9 [1-(3-Chloro-phenyl)-5-hydroxy-3-methyl-1H-pyrazol-4-yl]-acetic acid (CAS 1015844-55-9)
- N-(4,5-Dihydroxy-6-(hydroxymethyl)-2-((4-methoxybenzyl)oxy)tetrahydro-2H-pyran-3-yl)acetamide (CAS 1093408-06-0)
- Ethyl 5-oxo-5-(3-phenoxyphenyl)pentanoate (CAS 898752-67-5)
- 2-(4-Isopropyl-4-methyl-5-oxo-4,5-dihydro-1H-imidazol-2-yl)-5-propylnicotinic acid (CAS 105783-16-2)
- 2,2-Difluoro-2-(3-hydroxyphenyl)acetic acid (CAS 1785497-82-6)
- tert-Butyl 4-(methyl(3-methylpyrazin-2-yl)amino)piperidine-1-carboxylate (CAS 1289388-48-2)
- 2-Chloroquinoline-6-carboxamide (CAS 1823476-06-7)
- N-(2,6-diisopropylphenyl)-2,2,2-trifluoroacetamide (CAS 287970-98-3)
- PBDE No. 51 (CAS 189084-57-9)
- (R)-2-Acetamido-3-(3-chlorophenyl)propanoic acid (CAS 197087-50-6)
- Biotinyl-Neuropeptide Y (human, rat) trifluoroacetate salt (CAS 213779-13-6)
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