Description

1,2-Dichloro-4-methylbenzene (CAS No. 95-75-0), also known as 3,4-dichlorotoluene, is a high-purity aromatic compound with the molecular formula C₇H₆Cl₂. This colorless to pale yellow liquid is widely utilized in organic synthesis, agrochemical manufacturing, and pharmaceutical research due to its versatile reactivity as a halogenated toluene derivative. With a molecular weight of 161.03 g/mol and boiling point of ~200°C, it serves as a critical intermediate for introducing dichloromethylbenzene moieties into complex molecules. Our product is rigorously tested to meet >98% purity standards (GC analysis) and is supplied in amber glass bottles under inert atmosphere to ensure stability. Ideal for nucleophilic substitution reactions, coupling reactions, or as a building block for advanced materials.

Key Specifications:
• CAS: 95-75-0
• Purity: ≥98% (GC)
• Form: Liquid
• Storage: 2-8°C under inert gas
• Hazard Class: Irritant (GHS labels included)

Properties

• CAS Number: 95-75-0
• Complexity: 92.9
• IUPAC Name: 1,2-dichloro-4-methyl-benzene
• InChI: InChI=1S/C7H6Cl2/c1-5-2-3-6(8)7(9)4-5/h2-4H,1H3
• InChI Key: WYUIWKFIFOJVKW-UHFFFAOYSA-N
• Exact Mass: 159.9846556
• Molecular Formula: C7H6Cl2
• Molecular Weight: 161.03
• SMILES: CC1=CC(=C(C=C1)Cl)Cl
• Monoisotopic Mass: 159.9846556
• Synonyms: 3,4-DICHLOROTOLUENE, 95-75-0, Benzene, 1,2-dichloro-4-methyl-, Toluene, 3,4-dichloro-, NSC 8765, EINECS 202-447-9, AI3-02581, DTXSID2021814, EC 202-447-9, DTXCID601814, Toluene, 3,4-dichloro-(8CI), 202-447-9, 1,2-Dichloro-4-methylbenzene, NSC8765, 3,4-dichloro-toluene, SCHEMBL41405, 3,4-Dichlorotoluene, 97%, CHEMBL47525, SCHEMBL156450, Benzene,2-dichloro-4-methyl-, SCHEMBL1134368, SCHEMBL2091192, SCHEMBL2091195, SCHEMBL2343838, SCHEMBL2344830, 1,2-Dichloro-4-methylbenzene #, NSC-8765, MFCD00000556, SBB061466, AKOS009031174, 3,4-Dichlorotoluene, analytical standard, BS-42252, DB-024298, D0426, NS00005612, ST50406749, EN300-21591, 3,4-Dichlorotoluene 100 microg/mL in Methanol, 2-hydroxy-5-(p-tolylsulfonyloxy)benzenesulfonic acid; piperazine, InChI=1/C7H6Cl2/c1-5-2-3-6(8)7(9)4-5/h2-4H,1H

Application

1,2-Dichloro-4-methylbenzene is primarily employed as a key intermediate in the synthesis of agrochemicals, particularly herbicides and pesticides, where its dichlorinated aromatic structure enhances bioactivity. In pharmaceutical research, it serves as a precursor for developing antimicrobial and antifungal agents through selective functionalization of the benzene ring. The compound also finds use in material science for modifying polymer properties and in organic electronics as a dopant or synthetic building block.

Safety and Hazards

GHS Hazard Statements

• H227: Combustible liquid [Warning Flammable liquids]
• H361: Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]
• H373: May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]
• H401: Toxic to aquatic life [Hazardous to the aquatic environment, acute hazard]
• H411: Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]

Precautionary Statements

• P203, P210, P260, P273, P280, P318, P319, P370+P378, P391, P403, P405, and P501

Hazard Classes and Categories

• Flammable liquids – Category 4
• Reproductive toxicity – Category 2
• Specific target organ toxicity – Repeated exposure – Category 2
• Hazardous to the aquatic environment – Category 2
• Hazardous to the aquatic environment – Category 2

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.