4-Bromo-5-methylimidazole CAS 15813-08-8
| CAS No. | 15813-08-8 |
| Molecular Formula | C4H5BrN2 |
| Molecular Weight | 161.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Bromo-5-methylimidazole is closely related to a nitrile group, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-Bromo-5-methylimidazole (CAS 15813-08-8) is a high-purity analytical reference standard with the molecular formula C4H5BrN2 and a molecular weight of 161.00 g/mol.
4-Bromo-5-methylimidazole (C4H5BrN2) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 4-Bromo-5-methylimidazole 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 | C4H5BrN2 |
| Molecular Weight | 161.00 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.) | 1961 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 2-Bromo-2-cyclopentenone (CAS 10481-34-2)
- 4-Bromo-5-methyl-1H-pyrazole (CAS 1076223-98-7)
- 2-Bromo-5-methylfuran (CAS 123837-09-2)
- 4-Bromo-3-methylpyrazole (CAS 13808-64-5)
- 3-Bromo-1-methyl-1<I>H</I>-pyrazole (CAS 151049-87-5)
- 4-Bromo-1-methyl-1H-pyrazole (CAS 15803-02-8)
- 4-Bromo-2-methyl-1H-imidazole (CAS 16265-11-5)
- 3-Bromo-4-methylfuran (CAS 176042-58-3)
Recommended Standards
- (2E,4E)-5-Bromo-2,4-pentadienal (CAS 168295-33-8)
- (2E,4Z)-5-Bromo-2,4-pentadienal (CAS 168295-34-9)
- 1-(Bromomethyl)-1H-pyrazole (CAS 1256561-87-1)
- 2-(Bromomethyl)furan (CAS 4437-18-7)
- (6-Chlorochroman-3-yl)methanol (CAS 357396-09-9)
- Benzoic acid, 4-formyl-2-methyl-, ethyl ester (CAS 71441-11-7)
- 2-Methyl-4,5,6,7-tetrahydro[1,3]thiazolo[5,4-c]pyridine hydrochloride (CAS 192869-83-3)
- 5-Bromo-2-chloro-3-(1-methylethoxy)pyridine (CAS 1335058-63-3)
- (R)-1-(2-Chloropyridin-4-yl)ethan-1-amine dihydrochloride (CAS 1391443-90-5)
- (1R,2R)-2-((tert-Butyldimethylsilyl)oxy)cyclopentan-1-amine (CAS 2806011-38-9)
- (R)-3-Amino-4-(3-chlorophenyl)butanoic acid (CAS 785038-49-5)
- 2-(4-Bromophenyl)imidazo[2,1-a]phthalazin-6-amine (CAS 565169-58-6)
- Bis[(1,5-dimethyl-1h-pyrrol-2-yl)methyl]amine (CAS 1209276-40-3)
- D-Lys20-Tirzepatide (CAS CATO-CPTD788914)
Why CATO?
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