Ethyl 3-(4-aminophenyl)-1H-pyrazole-5-carboxylate CAS 1338234-75-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1338234-75-5 |
| Molecular Formula | C12H13N3O2 |
| Molecular Weight | 231.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 3-(4-aminophenyl)-1H-pyrazole-5-carboxylate (CAS 1338234-75-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C12H13N3O2. Molecular weight: 231.25 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C12H13N3O2 |
| Molecular Weight | 231.25 g/mol |
| Appearance | Pale yellow to 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 3 |
Related Ethyl Standards
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- Ethyl 1-(4-aminophenyl)-1h-pyrazole-3-carboxylate (CAS 1155927-22-2)
- ethyl 1-(2-aminophenyl)-1H-pyrazole-3-carboxylate (CAS 1155927-34-6)
- 2-(3-Aminophenyl)tetrahydro-1H-pyrrolo[1,2-c]imidazole-1,3(2H)-dione (CAS 1219335-80-4)
- Methyl 1-(2-aminophenyl)-5-methyl-1H-pyrazole-3-carboxylate (CAS 1251950-62-5)
- Methyl 1-(4-aminophenyl)-5-methyl-1H-pyrazole-3-carboxylate (CAS 1272756-53-2)
- 2-(4-Aminophenyl)tetrahydro-1H-pyrrolo[1,2-c]imidazole-1,3(2H)-dione (CAS 1284540-54-0)
Recommended Standards
- 4-(5-Phenyl-1,3-oxazol-2-yl)butanoic acid (CAS 133602-40-1)
- 1-(2,5-Dimethylbenzyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1338654-81-1)
- 2-(2-Aminophenyl)-N,5-dimethyloxazole-4-carboxamide (CAS 1334494-03-9)
- 2,2'-((4-Cyanoisothiazole-3,5-diyl)bis(sulfanediyl))bis(N-(5-ethyl-1,3,4-thiadiazol-2-yl)acetamide) (CAS 327168-06-9)
- 1-(3-Butyn-1-yl)pyrrolidine (CAS 14731-40-9)
- Diethyl (2-hydroxypropan-2-yl)phosphonate (CAS 6632-88-8)
- 5-Amino-1-(cyclohexylmethyl)-1H-pyrazole-4-carbonitrile (CAS 311331-49-4)
- 2,2,2-Trifluoroethyl n-[2-(morpholin-4-yl)ethyl]carbamate (CAS 1197808-29-9)
- Tert-butyl 7-hydroxy-5-thia-2-azaspiro[3.4]Octane-2-carboxylate 5,5-dioxide (CAS 1453315-78-0)
- Semaglutide impurity 31 (CAS CATO-C4X-222631)
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