3,4,5-Trichloroaniline CAS 634-91-3
| CAS No. | 634-91-3 |
| Molecular Formula | C6H4Cl3N |
| Molecular Weight | 196.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3,4,5-Trichloroaniline (C6H4Cl3N) contains a nitrile group, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 196.46 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies 3,4,5-Trichloroaniline (CAS 634-91-3), a certified reference material (molecular formula C6H4Cl3N, MW 196.46 g/mol) for analytical method development and quality control.
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 | C6H4Cl3N |
| Molecular Weight | 196.46 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | >90% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Trichloroaniline Standards
Recommended Standards
- Sevoflurane Impurity 12 (CAS 206756-25-4)
- n-Dodecane-d26 (CAS 16416-30-1)
- 4-Chloro-1-(difluoromethyl)-1H-pyrazole-3-carboxylic acid (CAS 1310350-99-2)
- 2,3-Dichloro-5-(chloromethyl)pyridine 5264AE 54127-31-0 C6H4Cl3N (CAS 54127-31-0)
- 2-(1-Oxidothiomorpholine-4-carbonyl)cyclopropane-1-carboxylic acid (CAS 1249235-67-3)
- 5-(4-Fluorophenyl)-1,2,4-thiadiazol-3-amine (CAS 1086385-83-2)
- 1-(4-Hydroxy-1,2-oxazolidin-2-yl)-2-[4-(pyridin-2-yl)piperazin-1-yl]ethan-1-one (CAS 344277-32-3)
- (S)-3-(methoxycarbonyl)-4-methylpentanoic acid (CAS 208113-95-5)
- (Z)-2-((E)-1-Hydroxy-3-phenylallylidene)-4-methoxycyclopent-4-ene-1,3-dione (CAS 19956-53-7)
- 1-(3-Fluorophenyl)-2-(1h-imidazol-1-yl)ethan-1-one (CAS 630403-99-5)
- (S)-N-(pyrimidin-2-yl)pyrrolidine-2-carboxamide (CAS 719994-77-1)
- 5-Bromo-N-methylpyrazin-2-amine (CAS 446286-92-6)
- 7,8-DIHYDRO-1,7-NAPHTHYRIDIN-6(5H)-ONE (CAS 853648-47-2)
- [Nva12]-Tirzepatide (CAS CATO-C4X-324042)
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