3-Bromo-1H-1,2,4-triazole CAS 7343-33-1
| CAS No. | 7343-33-1 |
| Molecular Formula | C2H2BrN3 |
| Molecular Weight | 147.96 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 3-Bromo-1H-1,2,4-triazole (C2H2BrN3) is characterized by a nitrile group, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 3-Bromo-1H-1,2,4-triazole (CAS 7343-33-1), a certified reference material (molecular formula C2H2BrN3, MW 147.96 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C2H2BrN3 |
| Molecular Weight | 147.96 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 | 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.) | 1959 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Bromo Standards
- 4-Bromo-1,3-oxazole (CAS 1240598-57-5)
- 3-Bromo-1H-1,2,4-triazole (CAS 15182-40-8)
- 2-Bromo-3-oxopropanenitrile (CAS 97925-42-3)
- 3- Bromo- 2- oxopropanenitrile (CAS 70688-35-6)
- 4-Bromo-1H-1,2,3-triazole (CAS 40964-56-5)
- 4-bromo-2H-1,2,3-triazole (CAS 1988796-00-4)
- 3-Bromo-2-methylpropanenitrile (CAS 53744-77-7)
- 2-Bromo-2-methylpropanenitrile (CAS 41658-69-9)
Recommended Standards
- 7-Methyl-1,3-dihydro-2,1-benzoxaborol-1-ol (CAS 108485-02-5)
- 2-Bromooxazole (CAS 125533-82-6)
- (S)-3-Methylbenzo[c][1,2]oxaborol-1(3H)-ol (CAS 1388265-61-9)
- 2-Vinylphenylboronic Acid (CAS 15016-42-9)
- 5-(4-(1H-benzo[d]imidazol-2-yl)piperidin-1-yl)-5-oxopentanoic acid (CAS 1189749-58-3)
- SW-100 HDAC6 Inhibitor (CAS 2126744-35-0)
- Ethyl 3-aminothieno[3,2-c]pyridine-2-carboxylate (CAS 187733-13-7)
- [S(R)]-N-[(R)-[6-(Diphenylphosphino)benzo[d][1,3]dioxol-5-yl]-1-naphthalenylmethyl]-2-methyl-2-propanesulfinamide (CAS 2565792-59-6)
- 2-(3-Cyclohexyl-1-methyl-1h-1,2,4-triazol-5-yl)ethan-1-amine (CAS 1341769-56-9)
- MF 5137 (CAS 148927-23-5)
- 3-Ethoxy-2,2-diethylcyclobutan-1-ol (CAS 1376341-23-9)
- 3-(Bromomethyl)-1-methoxy-3-methylpentane (CAS 1491174-41-4)
- 4-(3-Methyl-1H-indazol-1-yl)benzoic acid (CAS 1260779-16-5)
- Acetyl decapeptide-3 (CAS 935288-50-9)
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