1-(4-Bromobutyl)-1h-pyrazole CAS 1152875-99-4
| CAS No. | 1152875-99-4 |
| Molecular Formula | C7H11BrN2 |
| Molecular Weight | 203.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-(4-Bromobutyl)-1h-pyrazole is closely related to a nitrile group, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 1-(4-Bromobutyl)-1h-pyrazole (CAS 1152875-99-4), a certified reference material (molecular formula C7H11BrN2, MW 203.08 g/mol) for analytical method development and quality control.
1-(4-Bromobutyl)-1h-pyrazole (C7H11BrN2) contains a nitrile group, 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.
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.
CATO manufactures 1-(4-Bromobutyl)-1h-pyrazole 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 | 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.) | 1989 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromobutyl Standards
- 1-(4-Bromobutyl)-1,2,4-triazole (CAS 1094698-00-6)
- 1-(4-Bromobutyl)-1,2,3-triazole (CAS 1793087-89-4)
- (3-Bromobutyl)cyclopentane (CAS 1250989-28-6)
- (4-Bromobutyl)cyclopentane (CAS 18914-30-2)
- 4-Bromobutyl nitrate (CAS 146563-40-8)
- 2-(4-Bromobutyl)-1,3-dioxolane (CAS 87227-41-6)
- 2-bromobutyl acetate (CAS 13333-04-5)
- 4-Bromobutyl Acetate (CAS 4753-59-7)
Recommended Standards
- 4-(3-bromopropyl)-1-methyl-1H-pyrazole (CAS 1082065-79-9)
- 4-Bromo-1-(butan-2-yl)-1h-pyrazole (CAS 1179304-86-9)
- 6-Bromo-2-methylhept-6-en-3-yn-2-ol (CAS 100379-06-4)
- 4-Bromo-1-isobutyl-1H-pyrazole (CAS 1184394-32-8)
- Benzylhydrazine hydrobromide (CAS 72912-95-9)
- R3K9Y00J04 212631-79-3 2-(2-Chloro-4-iodophenylamino)-N-cyclopropylmethoxy-3,4-difluorobenzamide Benzamide, 2-((2-chloro-4-iodophenyl)amino)-N-(cyclopropylmethoxy)-3,4-difluoro- PD 184352 CI-1040 UNII-R3K9Y00J04 (CAS 212631-79-3)
- 4-(2-Ethyl-1H-imidazol-4-yl)pyridine (CAS 701298-22-8)
- Ethyl 4-Aminotetrahydrothiopyran-4-carboxylate (CAS 1248324-93-7)
- 4-Chloro-3-phenyl-5-(trifluoromethyl)-1H-pyrazole (CAS 235106-13-5)
- (2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)(furan-2-yl)methanamine hydrochloride (CAS 1185300-02-0)
- 1-(4-Methoxyphenyl)-3-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)urea (CAS 874301-63-0)
- Uracil Impurity 4 (CAS 17014-74-3)
- 1-(4-Nitrophenyl)cyclobutanecarbonitrile (CAS 1236409-69-0)
- Semaglutide impurity 32 (CAS CATO-C4X-222632)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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