3-Bromo-5-methyl-1-propyl-1H-pyrazole CAS 1354706-07-2
| CAS No. | 1354706-07-2 |
| Molecular Formula | C7H11BrN2 |
| Molecular Weight | 203.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-Bromo-5-methyl-1-propyl-1H-pyrazole 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.
3-Bromo-5-methyl-1-propyl-1H-pyrazole (CAS 1354706-07-2) is a high-purity analytical reference standard with the molecular formula C7H11BrN2 and a molecular weight of 203.08 g/mol.
Structurally, 3-Bromo-5-methyl-1-propyl-1H-pyrazole (C7H11BrN2) contains a nitrile group, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 203.08 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.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C7H11BrN2 |
| Molecular Weight | 203.08 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 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 |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 6-bromo-4-methyl-pyridine-3-carbonitrile (CAS 1003711-35-0)
- 6-Bromo-2-methylhept-6-en-3-yn-2-ol (CAS 100379-06-4)
- 4-Bromo-1-(butan-2-yl)-1h-pyrazole (CAS 1179304-86-9)
- 4-Bromo-1-isobutyl-1H-pyrazole (CAS 1184394-32-8)
- 2-Bromo-1,2-dicyclopropylethan-1-one (CAS 1187384-08-2)
- 5-Bromo-1-isopropyl-2-methyl-1H-imidazole (CAS 1204228-25-0)
- 2-(2-bromo-3-pyridyl)acetonitrile (CAS 1211523-71-5)
- 3-Bromo-5,5-dimethylcyclohex-2-en-1-one (CAS 13271-49-3)
Recommended Standards
- 3-Bromo-1-isobutyl-1H-pyrazole (CAS 1354704-68-9)
- 3-Bromo-1-(sec-butyl)-1H-pyrazole (CAS 1354706-11-8)
- 3-Bromo-1-isopropyl-5-methyl-1h-pyrazole (CAS 1354704-46-3)
- 2-Bromo-1-(cyclohex-1-en-1-yl)ethanone (CAS 137994-00-4)
- N-(2-(pyridin-3-yl)pyrimidin-5-yl)cyclopropanecarboxamide (CAS 866143-30-8)
- 2-(Difluoromethyl)-6-fluoro-3-hydroxypyridine-5-acetonitrile (CAS 1806849-06-8)
- (R)-2-Amino-3-(3-bromo-4-hydroxyphenyl)propanoic acid (CAS 1241680-33-0)
- 3-{imidazo[1,5-a]pyridin-1-yl}propanoic acid (CAS 1018253-90-1)
- (1R,2R)-trans-1,2-Cyclopentanediol (CAS 930-46-1)
- Methyl 4-(2-amino-1,3-thiazol-4-yl)butanoate (CAS 193817-77-5)
- N'-[(1E)-{[(2,4-dichlorophenyl)methoxy]amino}methylidene]pyridine-4-carbohydrazide (CAS 338791-43-8)
- 4,4-Dimethyl-N-(2-phenylethyl)-4,5-dihydro-1,3-thiazol-2-amine (CAS 522606-44-6)
- (3,5-dichloro-2-nitrophenyl)methanol (CAS 1267952-21-5)
- D-Leu26-Tirzepatide (CAS CATO-CPTD788908)
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