4-Bromo-1H-1,2,3-triazole CAS 40964-56-5
| CAS No. | 40964-56-5 |
| Molecular Formula | C2H2BrN3 |
| Molecular Weight | 147.96 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 4-Bromo-1H-1,2,3-triazole.
CATO supplies 4-Bromo-1H-1,2,3-triazole (CAS 40964-56-5), a certified reference material (molecular formula C2H2BrN3, MW 147.96 g/mol) for analytical method development and quality control.
The molecular framework of 4-Bromo-1H-1,2,3-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. 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.
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.) | 1968 |
| 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)
- 3-Bromo-1H-1,2,4-triazole (CAS 7343-33-1)
- 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)
- (S)-3-Methylbenzo[c][1,2]oxaborol-1(3H)-ol (CAS 1388265-61-9)
- 2-Vinylphenylboronic Acid (CAS 15016-42-9)
- 2-Bromooxazole (CAS 125533-82-6)
- 8-Bromo-5’-O-(4-cyanobenzyl)-2’,3’-di-O-isopropylidene adenosine (CAS 1134156-53-8)
- 3-(3-aminophenyl)-5-(methoxymethyl)imidazolidine-2,4-dione (CAS 1531545-30-8)
- N-(3-Methoxyphenyl)-4-oxo-4H-chromene-2-carboxamide (CAS 306287-57-0)
- Entacapone Impurity 59 (CAS CATO-C4X-162959)
- 1,5-diethoxy-pentane (CAS 90724-89-3)
- Methyl 2-((2-chloro-4-(trifluoromethyl)phenyl)thio)acetate (CAS 1119451-07-8)
- (S)-2-Amino-1-((S)-3-(benzyl(isopropyl)amino)pyrrolidin-1-yl)-3-methylbutan-1-one (CAS 1401666-37-2)
- DST(disuccinimidyl tartrate) (CAS 77658-91-4)
- 5-Bromo-N-(diphenylmethylene)-2-pyridinamine (CAS 1637470-21-3)
- Tau Peptide (74-102) (Exon 3/Insert 2 Domain) trifluoroacetate salt (CAS 1322695-34-0)
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