Ethyl 4-amino-1H-pyrazole-5-carboxylate CAS 1119477-69-8
| CAS No. | 1119477-69-8 |
| Molecular Formula | C6H9N3O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 191.62 g/mol gives Ethyl 4-amino-1H-pyrazole-5-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Ethyl 4-amino-1H-pyrazole-5-carboxylate (CAS 1119477-69-8), molecular formula C6H9N3O2HCl and molecular weight 191.62 g/mol, is a CATO reference standard with documented purity and traceability.
Ethyl 4-amino-1H-pyrazole-5-carboxylate (C6H9N3O2HCl) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Ethyl 4-amino-1H-pyrazole-5-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 | C6H9N3O2 HCl |
| Molecular Weight | 191.62 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Ethyl Standards
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- Methyl 2-amino-5-bromo-4-isopropylbenzoate (CAS 1000018-13-2)
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- 100005-23-0 2-Amino-4-(4-methoxyphenyl)-5-methylthiophene-3-carbonitrile 7050AC C13H12N2OS (CAS 100005-23-0)
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- 6-Amino-7-hydroxy-2,3-dihydro-1H-inden-1-one hydrobromide (CAS 1000333-87-8)
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Recommended Standards
- (S)-4-Nitro-2,3-dihydro-1H-inden-1-amine (CAS 1212877-86-5)
- 3-(Difluoromethyl)-1-(2-methylpropyl)-1h-pyrazol-4-amine hydrochloride (CAS 1423034-57-4)
- (R)-STRIP (CAS 1372719-95-3)
- (5-Bromo-1H-indazol-3-yl)-acetic acid tert-butyl ester (CAS 1965309-76-5)
- 2-(4-((tert-Butyldimethylsilyl)oxy)-2-methylbutan-2-yl)-3,5-dimethylphenol (CAS 134098-64-9)
- Ac-(5-31)Semaglutide (CAS CATO-C4X-2226279)
- [6-(2,2,2-Trifluoroethoxy)pyridin-3-yl]methanol (CAS 159981-20-1)
- Tert-butyl 4-((3-(methoxycarbonyl)benzyl)amino)piperidine-1-carboxylate (CAS 1286264-55-8)
- SB-203580 hydrochloride, >98% (HPLC) (CAS 869185-85-3)
- Fas C- Terminal Tripeptide (CAS 189109-90-8)
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