3-(4-(4-Bromophenyl)-5-((4-nitrobenzyl)thio)-4H-1,2,4-triazol-3-yl)pyridine CAS 674355-26-1
| CAS No. | 674355-26-1 |
| Molecular Formula | C20H14BrN5O2S |
| Molecular Weight | 468.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-(4-(4-Bromophenyl)-5-((4-nitrobenzyl)thio)-4H-1,2,4-triazol-3-yl)pyridine 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.
3-(4-(4-Bromophenyl)-5-((4-nitrobenzyl)thio)-4H-1,2,4-triazol-3-yl)pyridine (CAS 674355-26-1) is a high-purity analytical reference standard with the molecular formula C20H14BrN5O2S and a molecular weight of 468.33 g/mol.
The molecular framework of 3-(4-(4-Bromophenyl)-5-((4-nitrobenzyl)thio)-4H-1,2,4-triazol-3-yl)pyridine (C20H14BrN5O2S) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C20H14BrN5O2S |
| Molecular Weight | 468.33 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Bromophenyl Standards
- 4-(4-(4-Bromophenyl)-5-((4-nitrobenzyl)thio)-4H-1,2,4-triazol-3-yl)pyridine (CAS 477330-04-4)
- 5-(3-Bromophenyl)-1-(furan-2-ylmethyl)-3-hydroxy-4-(4-methoxybenzoyl)-1H-pyrrol-2(5H)-one (CAS 618074-70-7)
- 7-(4-Bromophenyl)-2-(4-(pyridin-2-yl)piperazin-1-yl)thieno[3,2-d]pyrimidin-4(1H)-one (CAS 1242964-02-8)
- 6-((3-(4-Bromophenyl)-1,2,4-oxadiazol-5-yl)methyl)-3-(4-fluorophenyl)-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one (CAS 1206987-89-4)
- N-(2-Bromophenyl)-2-((3-(3-bromophenyl)-1H-1,2,4-triazol-5-yl)thio)acetamide (CAS 332127-08-9)
- N-(3-Bromophenyl)-2-(4-(4-chlorophenyl)-1-oxophthalazin-2(1H)-yl)acetamide (CAS 684234-57-9)
- (Z)-[(4-Bromophenyl)[2-(4-chlorophenyl)cyclopropyl]methylidene]amino 4-methylbenzoate (CAS 338415-66-0)
- 2-((4-Bromophenyl)thio)-3-((4-chlorophenyl)sulfonyl)-4,6-dimethylpyridine (CAS 478262-70-3)
Recommended Standards
- [4-(2,4-Difluorophenoxy)-3-nitrophenyl]methyl N-[3-(trifluoromethyl)phenyl]carbamate (CAS 338960-97-7)
- 4-(2,6-Dichlorophenyl)-9-hydroxy-6-(3-(methylamino)propyl)pyrrolo[3,4-c]carbazole-1,3(2H,6H)-dione (CAS 622856-21-7)
- (4-(4-((2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)methyl)cyclohexane-1-carboxamido)-1-hydroxybutane-1,1-diyl)bis(phosphonic acid) (CAS 1426523-52-5)
- Naphthol AS-BI Phosphate (CAS 1919-91-1)
- 7-Chloro-1,2,3,4-tetrahydro-2,6-naphthyridine (CAS 1060816-44-5)
- 2-(Diethylphosphoryl)benzoic acid (CAS 79317-58-1)
- N-Ethyl-4-methyl-N-(5-phenylfuran-2-yl)benzenesulfonamide (CAS 865486-73-3)
- (S)-N-(2,2,2-Trifluoro-1-(4-formylphenyl)ethyl)methanesulfonamide (CAS 1448682-02-7)
- Piperidine-1-carboximidamide xsulfate (CAS 100417-03-6)
- trans-Methyl 2-[4-[4-[(trifluoromethylsulfonyl)oxy]phenyl]cyclohexyl]acetate (CAS 701232-68-0)
- H-Leu-Pro-OH · HCl (CAS 87178-63-0)
- N'-(4-Fluorobenzo[d]thiazol-2-yl)-4-methoxybenzohydrazide (CAS 851978-72-8)
- Neopentyl benzenesulfonate (CAS 75620-67-6)
- Tirzepatide Impurity 11 TFA salt (CAS CATO-C4X-324011)
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