Ethyl 5-amino-1-(2,5-difluorophenyl)-1H-pyrazole-4-carboxylate CAS 138907-69-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 138907-69-4 |
| Molecular Formula | C12H11F2N3O2 |
| Molecular Weight | 267.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Ethyl 5-amino-1-(2,5-difluorophenyl)-1H-pyrazole-4-carboxylate (CAS 138907-69-4), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C12H11F2N3O2. Molecular weight: 267.23 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C12H11F2N3O2 |
| Molecular Weight | 267.23 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, 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.) | 1996 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Ethyl Standards
- Ethyl 5-amino-1-(2,4-difluorophenyl)-1H-pyrazole-3-carboxylate (CAS 1264039-33-9)
- Ethyl 5-amino-1-(2,4-difluorophenyl)-1H-pyrazole-4-carboxylate (CAS 138907-72-9)
- Ethyl 5-amino-1-(3,5-difluorophenyl)-1H-pyrazole-4-carboxylate (CAS 1527946-98-0)
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Recommended Standards
- Dimethyl 2-methyl-2-(4-nitrophenyl)malonate (CAS 131675-32-6)
- Methyl 2-((5,8-difluoro-2-methylquinolin-4-yl)oxy)acetate (CAS 1315350-32-3)
- Pentanedioic acid, 1-(2,5-dioxo-1-pyrrolidinyl) 5-(2-propyn-1-yl) ester (CAS 1446429-04-4)
- (S)-2-(phenoxymethyl)morpholine (CAS 661470-52-6)
- (2-Fluorobenzyl)glycine (CAS 88720-49-4)
- 7-(Diethylamino)-3-methyl-2H-benzo[b][1,4]oxazin-2-one (CAS 113501-43-2)
- (R)-3-(4,6-Dibromopyrimidin-5-yl)butanenitrile (CAS 1889238-22-5)
- N-Methyl-1-(1-methyl-4,5,6,7-tetrahydro-1H-benzo[d]imidazol-2-yl)methanamine (CAS 1510435-26-3)
- (1-benzyl-3,5-diethyl-1H-pyrazol-4-yl)methanamine dihydrochloride (CAS 1909318-99-5)
- Semaglutide Impurity 14(Discontinued,See CPTD788307 ) (CAS CATO-C4X-222614)
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