1,2,3-Trichloro-5-(chloromethyl)benzene CAS 79185-27-6
| CAS No. | 79185-27-6 |
| Molecular Formula | C7H4Cl4 |
| Molecular Weight | 229.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1,2,3-Trichloro-5-(chloromethyl)benzene (CAS 79185-27-6), molecular formula C7H4Cl4 and molecular weight 229.92 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to chlorine substitution, an aromatic ring system, 1,2,3-Trichloro-5-(chloromethyl)benzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 229.92 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 1,2,3-Trichloro-5-(chloromethyl)benzene 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 | C7H4Cl4 |
| Molecular Weight | 229.92 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Cl-containing |
Related Trichloro Standards
- 1,2,3-Trichloro-4-(chloromethyl)benzene (CAS 13911-02-9)
- 1,2,4-Trichloro-3-(chloromethyl)benzene (CAS 1424-79-9)
- 1,3,5-Trichloro-2-(chloromethyl)benzene (CAS 17293-03-7)
- 1,2,4-trichloro-5-(chloromethyl)benzene (CAS 3955-26-8)
- 2,4,6-Trichloro-5-(methylthio)pyrimidine (CAS 24795-76-4)
- 2,2,2-Trichloro-1-(1-methyl-1H-pyrazol-4-yl)ethan-1-ol (CAS 1338495-17-2)
- 2,2,2-Trichloro-1-(3,4-dihydro-2h-pyran-5-yl)ethan-1-one (CAS 83124-87-2)
- 2,2,2-Trichloro-1-(thiazol-2-yl)ethan-1-one (CAS 87636-20-2)
Recommended Standards
- 1,2-Dichloro-4-dichloromethyl-benzene (CAS 56961-84-3)
- 1,3-Dichloro-5-dichloromethyl-benzene (CAS 56961-85-4)
- 1,3-Dichloro-1,1,2,3,3-pentafluoropropane (CAS 136013-79-1)
- 2,5-Dichlorobenzylidene chloride (CAS 56961-83-2)
- 5-((Naphthalen-1-yloxy)methyl)-4-((tetrahydrofuran-2-yl)methyl)-4H-1,2,4-triazole-3-thiol (CAS 917746-44-2)
- 3-Formyl-5-hydroxybenzamide (CAS 1015414-88-6)
- 4-Cyclohexyl-2-oxobutanoic acid (CAS 107872-88-8)
- Pralmorelin Diacetate Salt (CAS 158861-67-7)
- 4-Fluoro-3-methyl-5-nitrobenzamide (CAS 1806475-34-2)
- 4-((4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)methyl)pyridine (CAS 864754-20-1)
- 3-Bromo-N,N,2-trimethylbenzamide (CAS 1369848-53-2)
- 5-Chloro-6-(trifluoromethyl)pyrimidine-2,4(1H,3H)-dione (CAS 85730-40-1)
- 6-Ethynylimidazo[1,2-a]pyridine (CAS 1373337-86-0)
- Semaglutide impurity 271 (CAS CATO-C4X-2226271)
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