3-Bromo-1-methyl-1H-pyrrole CAS 77123-94-5
| CAS No. | 77123-94-5 |
| Molecular Formula | C5H6BrN |
| Molecular Weight | 160.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-Bromo-1-methyl-1H-pyrrole.
CATO supplies 3-Bromo-1-methyl-1H-pyrrole (CAS 77123-94-5), a certified reference material (molecular formula C5H6BrN, MW 160.01 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H6BrN, 3-Bromo-1-methyl-1H-pyrrole contains a nitrile group, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 160.01 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H6BrN |
| Molecular Weight | 160.01 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 methanol, acetonitrile, DMSO |
| 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.) | 1979 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 2-bromo-2-cyclopropyl-acetonitrile (CAS 1551295-22-7)
- 2-bromo-1-methyl-1H-pyrrole (CAS 56454-27-4)
- 2-Bromo-1,3-propanediol-d (CAS 1346598-67-1)
- 3-Bromo-1,2-propanediol-d5 (CAS 1246820-48-3)
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Recommended Standards
- 3-(Bromomethyl)-1H-pyrrole (CAS 807621-31-4)
- (6-Methoxyhexan-2-yl)boronic acid (CAS 1236213-99-2)
- 1-bromocyclobutanecarbonitrile (CAS 39994-98-4)
- 4,4,5,5-Tetrafluoro-1,3-dioxolan-2-one (CAS 183301-46-4)
- 2,2,3,3,4,4,4-Heptafluoro-N-(4-fluorophenyl)butanamide (CAS 550301-92-3)
- (E)-4-(2-(4-fluorobenzylidene)hydrazinyl)thieno[2,3-d]pyrimidine (CAS 478248-68-9)
- Adefovir Dipivoxil Impurity 23 (CAS 116384-55-5)
- Imidazo[1,2-b]pyridazin-6-ylmethanamine (CAS 1313726-22-5)
- 293737-86-7 2-(5-bromo-2-chlorophenyl)-1,3-benzoxazol-5-amine DTXSID50349754 (CAS 293737-86-7)
- 1-((1H-Indol-3-yl)methyl)-4-(4-chlorobenzyl)piperidin-4-ol (CAS 925217-94-3)
- N-(3-Cyano-4,5-dimethylthiophen-2-yl)-2-(2,5-dioxopyrrolidin-1-yl)acetamide (CAS 896304-32-8)
- 1-(4-Propoxyphenyl)-2,5-dihydro-1h-pyrrole-2,5-dione (CAS 89143-07-7)
- 7-Oxoundecanoic acid (CAS 71173-33-6)
- Neuropeptide Y (3-36) (human, rat) trifluoroacetate salt (CAS 150138-78-6)
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