8-Chloro-3-(2,4-dichlorophenyl)-6-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyridine CAS 135782-73-9
| CAS No. | 135782-73-9 |
| Molecular Formula | C13H5Cl3F3N3 |
| Molecular Weight | 366.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 8-Chloro-3-(2,4-dichlorophenyl)-6-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]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.
8-Chloro-3-(2,4-dichlorophenyl)-6-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyridine (CAS 135782-73-9), molecular formula C13H5Cl3F3N3 and molecular weight 366.55 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C13H5Cl3F3N3, 8-Chloro-3-(2,4-dichlorophenyl)-6-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyridine contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 366.55 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C13H5Cl3F3N3 |
| Molecular Weight | 366.55 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- Ethyl 4-chloro-8-iodo-7-methylpyrazolo[1,5-a][1,3,5]triazine-2-carboxylate (CAS 2365243-37-2)
- 2-(3-Chloro-5-(methoxymethoxy)-2-(trifluoromethyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2621936-30-7)
- 7-Chloro-1h,1h-perfluoroheptan-1-ol (CAS 76711-89-2)
- N-(2-chloro-4-formyl-6-iodopyridin-3-yl)pivalamide (CAS 1305324-69-9)
- 4-Chloro-6-iodo-2-phenylquinazoline (CAS 257624-25-2)
- 2-(5-Chloro-6-fluoro-4-(methoxymethoxy)naphthalen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2621935-18-8)
- 2-Chloro-3-((3,4-dichlorobenzyl)amino)naphthalene-1,4-dione (CAS 866157-71-3)
- 6-Chloro-N,N-bis(3-chlorophenyl)-1,3,5-triazine-2,4-diamine (CAS 84688-74-4)
Recommended Standards
- Betacarotene impurity 8 (CAS CATO-C4X-28158)
- 2-((((8beta)-6-Propylergolin-8-yl)methyl)thio)acetic Acid (CAS 478815-25-7)
- Bepridil (CAS 64706-54-3)
- 3-(4-phenoxyphenyl)-2-sulfanyl-3,4-dihydroquinazolin-4-one (CAS 438029-86-8)
- XQ9918NB1D 59378-87-9 beta-Proline 3-Pyrrolidinecarboxylic acid UNII-XQ9918NB1D (CAS 59378-87-9)
- (S)-N-[(4-Bromophenyl)methyl]piperidin-3-amine dihydrochloride (CAS 1338222-64-2)
- 4,4',4''-(Benzene-1,3,5-triyl)tris(1-naphthoic acid) (CAS 1660960-34-8)
- (r)-2-Amino-2-(2,4,5-trimethylphenyl)ethan-1-ol (CAS 1212902-92-5)
- 5-(Benzyloxy)-4-methoxy-2-nitrobenzoic acid (CAS 60564-37-6)
- 2-Methyl-1,2-dihydrophthalazine (CAS 36438-99-0)
- Diethyl 1-ethyl-4-oxo-1,4-dihydroquinoline-3,6-dicarboxylate (CAS 1352494-22-4)
- 4-Azetidinomethyl-3-bromobenzophenone (CAS 898756-40-6)
- 1-Phenoxycyclohexane-1-carboxylic acid (CAS 716361-84-1)
- Tirzepatide Impurity 33 (CAS CATO-C4X-324033)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com