Ethyl 3-bromo-1-(oxetan-3-yl)-1H-pyrazole-4-carboxylate CAS 2640485-86-3
| CAS No. | 2640485-86-3 |
| Molecular Formula | C9H11BrN2O3 |
| Molecular Weight | 275.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Ethyl 3-bromo-1-(oxetan-3-yl)-1H-pyrazole-4-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.
Ethyl 3-bromo-1-(oxetan-3-yl)-1H-pyrazole-4-carboxylate (CAS 2640485-86-3), molecular formula C9H11BrN2O3 and molecular weight 275.10 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Ethyl 3-bromo-1-(oxetan-3-yl)-1H-pyrazole-4-carboxylate (C9H11BrN2O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 275.10 g/mol, it falls into the medium-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C9H11BrN2O3 |
| Molecular Weight | 275.10 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 methanol, ethanol, DMSO |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 2,5-Dibromo-4-fluorophenacyl chloride (CAS 1803817-27-7)
- 2-Fluoro-4-(2-methylpropyl)aniline (CAS 1343739-71-8)
- 1-(4,5-Dimethylthiazol-2-yl)-N-methylmethanamine (CAS 933751-02-1)
- 2-chloro-N-[1-(5,6,7,8-tetrahydronaphthalen-2-yl)ethyl]propanamide (CAS 1153022-44-6)
- Lansoprazole EP Impurity C-D4 (CAS 1216682-38-0)
- 6-(Methylthio)-1-phenyl-4-(3-(trifluoromethyl)phenoxy)-1H-pyrazolo[3,4-d]pyrimidine (CAS 477845-73-1)
- 5-(3,4-Dichlorophenyl)-4-(3-fluoro-4-methylbenzoyl)-3-hydroxy-1-(pyridin-3-ylmethyl)-1H-pyrrol-2(5H)-one (CAS 618076-11-2)
- (1R,2R)-2-(2-(3-bromophenyl)-2-oxoethyl)cyclohexane-1-carboxylic acid (CAS 736136-38-2)
- (1R,2S)-Ethyl 2-hydroxycyclopentanecarboxylate (CAS 61586-79-6)
- Liraglutide Impurity 26 (CAS CATO-C4X-199226)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com