4-bromo-3-ethyl-1H-pyrazole-5-carboxylic acid CAS 1291177-22-4
| CAS No. | 1291177-22-4 |
| Molecular Formula | C6H7BrN2O2 |
| Molecular Weight | 219.04 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 4-bromo-3-ethyl-1H-pyrazole-5-carboxylic acid.
4-bromo-3-ethyl-1H-pyrazole-5-carboxylic acid (CAS 1291177-22-4) is a high-purity analytical reference standard with the molecular formula C6H7BrN2O2 and a molecular weight of 219.04 g/mol.
Based on its molecular formula C6H7BrN2O2, 4-bromo-3-ethyl-1H-pyrazole-5-carboxylic acid contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 219.04 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
CATO manufactures 4-bromo-3-ethyl-1H-pyrazole-5-carboxylic acid 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 | C6H7BrN2O2 |
| Molecular Weight | 219.04 g/mol |
| Appearance | Off-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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related bromo Standards
- 2-(4-bromo-1h-pyraZol-1-yl)acetohydrazide (CAS 1001500-63-5)
- 2-Bromo-3,5-dimethoxypyrazine (CAS 1033610-34-2)
- Methyl 2-(3-bromo-1H-pyrazol-1-yl)acetate (CAS 1034047-87-4)
- 4-Bromo-5-methyl-1H-pyrazole-3-carbohydrazide (CAS 1043909-04-1)
- Methyl 2-(4-bromo-1H-pyrazol-1-yl)acetate (CAS 1072944-71-8)
- 6-Bromo-1,1,1-trifluorohexane (CAS 111670-37-2)
- 2-Bromo-4,5-dimethoxypyrimidine (CAS 1161497-30-8)
- 5-Bromo-4-ethyl-1H-imidazole-2-carboxylic acid (CAS 1171125-11-3)
Recommended Standards
- 4-(1,3,6,2-Dioxazaborocan-2-yl)benzaldehyde (CAS 128399-19-9)
- 3-(3-Bromoisoxazol-5-yl)propanamide (CAS 1291486-30-0)
- 3-(3-Bromo-1H-1,2,4-triazol-5-yl)propanamide (CAS 1279219-37-2)
- 2-(4-Bromo-1-methyl-1H-pyrazol-5-yl)acetic acid (CAS 1310379-31-7)
- Vinyl octanoate (CAS 818-44-0)
- Tert-butyl 4-((3-aminopyridin-2-yl)oxy)piperidine-1-carboxylate (CAS 1286272-96-5)
- 1-[(2R)-oxolan-2-yl]methanamine hydrochloride (CAS 7175-80-6)
- [(1R)-1-Phenylethyl](propan-2-yl)amine (CAS 87861-38-9)
- (4-Aminophenyl)(4-(pyrimidin-2-yl)piperazin-1-yl)methanone (CAS 885949-72-4)
- rel-(S)-N-((R)-(3,5-Di-tert-butyl-4-methoxyphenyl)(5-(diphenylphosphino)-9,9-dimethyl-9H-xanthen-4-yl)methyl)-2-methylpropane-2-sulfinamide (CAS 2828070-48-8)
- 1-(2,3-Dichlorophenyl)-1H-pyrazol-4-ol (CAS 1710202-26-8)
- Amyrin Impurity 3 (CAS 486-34-0)
- Finerenone Impurity 149 (CAS CATO-C4X-2880149)
- Semaglutide impurity 24 (CAS CATO-C4X-222624)
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