5-bromo-2-methyl-pyrazole-3-carbaldehyde CAS 1367843-92-2
| CAS No. | 1367843-92-2 |
| Molecular Formula | C5H9BrN2O |
| Molecular Weight | 193.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 193.04 g/mol gives 5-bromo-2-methyl-pyrazole-3-carbaldehyde distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-bromo-2-methyl-pyrazole-3-carbaldehyde (CAS 1367843-92-2) is a high-purity analytical reference standard with the molecular formula C5H9BrN2O and a molecular weight of 193.04 g/mol.
5-bromo-2-methyl-pyrazole-3-carbaldehyde (C5H9BrN2O) contains an amide group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point; 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), 5-bromo-2-methyl-pyrazole-3-carbaldehyde 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 | C5H9BrN2O |
| Molecular Weight | 193.04 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related bromo Standards
- 2-bromo-1-(oxolan-3-yl)ethan-1-one (CAS 1101023-98-6)
- (R)-3-Bromo-4,4-dimethyldihydrofuran-2(3H)-one (CAS 1217724-84-9)
- 2-Bromo-5,8-dioxaspiro[3.4]octane (CAS 1257996-82-9)
- 2-bromo-1-(oxolan-2-yl)ethan-1-one (CAS 141061-17-8)
- 4-Bromo-1-methyl-1<I>H</I>-imidazole-5-carbaldehyde (CAS 141524-74-5)
- 5-bromo-1-methyl-pyrimidin-2-one (CAS 14248-01-2)
- 5-bromo-3-methyl-3,4-dihydropyrimidin-4-one (CAS 14248-02-3)
- 2-Bromo-3-isopropoxyacrylaldehyde (CAS 155272-73-4)
Recommended Standards
- 2-(Bromomethyl)allyl acetate (CAS 130239-36-0)
- 6-(bromomethyl)-2,3-dihydropyridazin-3-one (CAS 1263413-86-0)
- (2E)-bromohexenoic acid 125452-72-4 (CAS 125452-72-4)
- methyl trans-3-bromocyclobutane-1-carboxylate (CAS 1523618-35-0)
- 2-Amino-9-fluorenol (CAS 33417-27-5)
- 2-Chloro-1H-imidazole-4,5-dicarbonitrile (CAS 153448-18-1)
- 2-(2-(3-Fluoro-4-(trifluoromethyl)phenyl)thiazol-4-yl)acetic acid (CAS 937602-42-1)
- 2-Ethyl-N-(4-phenyl-1,2,5-oxadiazol-3-yl)butanamide (CAS 866248-36-4)
- 2,3-Dihydroxysuccinohydrazide (CAS 292644-27-0)
- 1-Isopropylpyrimidine-2,4,6(1H,3H,5H)-trione (CAS 69998-14-7)
- 2-((6-Chloro-2-(p-tolyl)-1H-benzo[d]imidazol-1-yl)oxy)acetic acid (CAS 303148-65-4)
- tert-Butyl 4-(1-ethoxy-2-methyl-1-oxopropan-2-yl)piperidine-1-carboxylate (CAS 1823227-39-9)
- Propane-1,2-diyl distearate (CAS 6182-11-2)
- Peptide Impurity 82 (CAS 10491-78-8)
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