Ethyl 5-amino-1-(2-nitrophenyl)-1H-pyrazole-3-carboxylate CAS 1264045-48-8
| CAS No. | 1264045-48-8 |
| Molecular Formula | C12H12N4O4 |
| Molecular Weight | 276.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl 5-amino-1-(2-nitrophenyl)-1H-pyrazole-3-carboxylate.
Ethyl 5-amino-1-(2-nitrophenyl)-1H-pyrazole-3-carboxylate (CAS 1264045-48-8) is a high-purity analytical reference standard with the molecular formula C12H12N4O4 and a molecular weight of 276.25 g/mol.
Structurally, Ethyl 5-amino-1-(2-nitrophenyl)-1H-pyrazole-3-carboxylate (C12H12N4O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 276.25 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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-nitrophenyl)-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 | C12H12N4O4 |
| Molecular Weight | 276.25 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 4 |
Related Ethyl Standards
- Ethyl 5-amino-1-(3-nitrophenyl)-1H-pyrazole-3-carboxylate (CAS 1264049-67-3)
- Methyl 5-amino-1-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-1H-1,2,3-triazole-4-carboxylate (CAS 1411766-56-7)
- 4-Amino-N,N-dimethyl-3-((1,1,1-trifluoropropan-2-yl)oxy)benzamide (CAS 1509183-62-3)
- Ethyl 5-amino-1-(2-nitrophenyl)-1H-pyrazole-4-carboxylate (CAS 16459-33-9)
- Ethyl 5-amino-1-(3-nitrophenyl)pyrazole-4-carboxylate (CAS 16459-34-0)
- Ethyl 5-amino-1-(4-nitrophenyl)-1h-pyrazole-4-carboxylate (CAS 16459-35-1)
- 4-Amino-2-((benzyloxy)methyl)-5-nitropyridazin-3(2H)-one (CAS 92574-77-1)
- Ethyl 5-amino-1-(4-nitrophenyl)-1H-pyrazole-3-carboxylate (CAS 866838-08-6)
Recommended Standards
- 1-[(piperidin-2-yl)methyl]-4-(trifluoromethyl)-1h-pyrrole-3-carboxylic acid (CAS 1240526-65-1)
- 4-Phthalimidoacetoacetic Acid Ethyl Ester-13C (CAS 123253-99-6)
- 4-(N-Methyl-N-trifluoroacetamide)-1-(3-pyridyl)-1-butanol (CAS 1346600-78-9)
- Tert-butyl ((5-(trifluoromethyl)pyridin-2-yl)methyl)carbamate (CAS 1216276-20-8)
- 4-Ethoxybenzo[d]thiazol-2(3H)-one, 97% (CAS 1188044-15-6)
- (S)-2-Amino-3-(1-formyl-1H-indol-3-yl)propanoic acid hydrochloride (CAS 38023-86-8)
- N-(1-(4-fluorophenyl)propan-2-yl)-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-amine (CAS 1432680-59-5)
- 1-(2-Bromothiazol-4-yl)cyclopropan-1-ol (CAS 2228272-51-1)
- (2R,3aR,6aR)-5-[(2-methylpropan-2-yl)oxycarbonyl]-2,3,3a,4,6,6a-hexahydrofuro[2,3-c]pyrrole-2-carboxylic acid (CAS 1391733-09-7)
- 4-(2-Aminoethyl)-3-(3-bromophenyl)isoxazol-5(2H)-one (CAS 878208-97-0)
- 5-Fluoro-4'-hydroxy-[1,1'-biphenyl]-3-carboxylic acid (CAS 1257665-01-2)
- 5-Chloroimidazo[1,2-a]pyridin-2-amine (CAS 1504961-12-9)
- 5-amino-2-methyl-4(1H)-Pyrimidinone (CAS 53135-22-1)
- Des-Ile12-Aib13-Tirzepatide (CAS CATO-CPTD788960)
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