5-(3-Bromophenyl)-4-methyl-4H-1,2,4-triazole-3-thiol CAS 333771-24-7
| CAS No. | 333771-24-7 |
| Molecular Formula | C9H8BrN3S |
| Molecular Weight | 270.15 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 5-(3-Bromophenyl)-4-methyl-4H-1,2,4-triazole-3-thiol.
5-(3-Bromophenyl)-4-methyl-4H-1,2,4-triazole-3-thiol (CAS 333771-24-7), molecular formula C9H8BrN3S and molecular weight 270.15 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-(3-Bromophenyl)-4-methyl-4H-1,2,4-triazole-3-thiol (C9H8BrN3S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 270.15 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-(3-Bromophenyl)-4-methyl-4H-1,2,4-triazole-3-thiol meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C9H8BrN3S |
| Molecular Weight | 270.15 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Bromophenyl Standards
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Recommended Standards
- 5-(3-Bromobenzyl)-1,3,4-thiadiazol-2-amine (CAS 299936-23-5)
- 5-(4-Bromobenzyl)-1,3,4-thiadiazol-2-amine (CAS 329921-62-2)
- 5-(2-Bromophenyl)-4-methyl-4H-1,2,4-triazole-3-thiol (CAS 58064-57-6)
- 5-(4-Bromophenyl)-4-methyl-4h-1,2,4-triazole-3-thiol (CAS 494194-50-2)
- 2-(4-Methyl-3,4-dihydro-2h-1,4-benzoxazin-3-yl)acetic acid (CAS 1368688-55-4)
- 2-(2-Nitrophenyl)imidazo[1,2-a]pyridine (CAS 126267-63-8)
- (S)-4-(tert-butyl)-2-(2'-(diphenylphosphanyl)-[1,1'-biphenyl]-2-yl)-4,5-dihydrooxazole (CAS 904888-04-6)
- 4-(Benzyloxy)-2-(2,6-difluorophenyl)-5-methyl-1,3-thiazole (CAS 400087-54-9)
- Oxiracetam Impurity 11 (CAS 870695-39-9)
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- 1-(Furan-2-yl)-2,2-dihydroxyethan-1-one (CAS 20328-66-9)
- 1-(4-Chloro-2-fluorophenyl)-1H-pyrazole-4-carbaldehyde (CAS 2379321-65-8)
- 4-((5-Methyl-1,3,4-thiadiazol-2-yl)thio)butan-1-amine (CAS 642092-86-2)
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