1,2,4-trichlorobenzene
C6H3Cl3
Consulting for 1,2,4-trichlorobenzene
Our experts support you with application, dosage, and compliance.
Identification
- CAS Number
- 120-82-1
- EC Number
- 204-428-0
- UN Number
- 2321
- Index Number
- 602-087-00-6
- PubChem CID
- 13
Physical-chemical properties
- Molecular Formula
- C6H3Cl3
- Molar Mass
- 181.40 g/mol
- IUPAC Name
- 1,2,4-trichlorobenzene
Chemical Identifiers
- InChI
- InChI=1S/C6H3Cl3/c7-4-1-2-5(8)6(9)3-4/h1-3H
- InChI Key
- PBKONEOXTCPAFI-UHFFFAOYSA-N
Overview
1,2,4-Trichlorobenzene (CAS 120-82-1) is a chlorinated aromatic hydrocarbon with three chlorine atoms attached to a benzene ring in specific positions. This halogenated benzene derivative serves as an important industrial intermediate and solvent in various chemical manufacturing processes. With the molecular formula C6H3Cl3 and a molecular weight of 181.4 g/mol, 1,2,4-trichlorobenzene represents one of the most commercially significant trichlorobenzene isomers due to its unique substitution pattern that provides favorable chemical reactivity and physical properties. The compound exhibits moderate toxicity and environmental concerns, classified under GHS with pictograms GHS07 and GHS09, indicating both health hazards and environmental dangers. Its classification as Acute Tox. 4, Skin Irrit. 2, and Aquatic Acute/Chronic 1 requires careful handling and appropriate safety measures during storage, transportation, and use. The ADR class 6.1 designation reflects its toxic nature for shipping purposes. In industrial applications, 1,2,4-trichlorobenzene functions primarily as a chemical intermediate in the synthesis of pesticides, herbicides, and other agrochemical products. It also serves as a specialized solvent for high-temperature processes and in the production of dyes and pigments. The compound shares chemical similarities with related halogenated aromatics such as 4-bromo-2-chloro-1-fluorobenzene, which is also used in pharmaceutical and agrochemical synthesis. The substance's environmental persistence and bioaccumulation potential necessitate responsible handling and disposal practices. Its aquatic toxicity classification emphasizes the importance of preventing environmental release during industrial operations. OYSI provides 1,2,4-trichlorobenzene to European industrial customers, ensuring compliance with REACH regulations and maintaining high quality standards for technical applications.
Safety & Classification
Acute Tox. 4 *; Skin Irrit. 2; Aquatic Acute 1; Aquatic Chronic 1
GHS Pictograms
HHazard Statements (H-Statements)
Describe the nature and severity of the hazard
Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).
First Aid Measures
Skin Contact
Measures if substance contacts the skin
First Aid Actions
- +P302IF ON SKIN:
- +P352Wash with plenty of water.
- +P361Take off immediately all contaminated clothing.
- +P313Get medical advice/attention.
Related hazard statements:
Ingestion
Measures if substance is accidentally swallowed
First Aid Actions
- +P301IF SWALLOWED:
- +P330Rinse mouth.
- +P331Do NOT induce vomiting.
- +P310Immediately call a POISON CENTER/doctor.
Related hazard statements:
General Measures
Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)
First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.
Transport (ADR)
| UN Number | 2321 |
| ADR Class | 6.1 |
| Packing Group | III |
| Tunnel Code | E |
| Proper Shipping Name | 1,2,4-Trichlorbenzen, flüssig |
| Marine Pollutant | No |
Frequently Asked Questions
What is 1,2,4-trichlorobenzene?
1,2,4-trichlorobenzene is a chlorinated aromatic hydrocarbon with the molecular formula C6H3Cl3 and CAS number 120-82-1. This chemical compound belongs to the trichlorobenzene family and has a molecular weight of 181.4 g/mol. It is classified as a moderately hazardous substance with acute toxicity and skin irritation properties, requiring careful handling in industrial applications.
What are the physicochemical properties of 1,2,4-trichlorobenzene?
1,2,4-trichlorobenzene is typically a colorless to pale yellow liquid or crystalline solid at room temperature with a characteristic aromatic odor. It has limited solubility in water but is soluble in organic solvents such as alcohols, ethers, and hydrocarbons. The compound exhibits stability under normal conditions but may decompose under extreme heat, releasing toxic chlorinated compounds.
What is 1,2,4-trichlorobenzene used for?
1,2,4-trichlorobenzene is primarily used as an intermediate in the synthesis of pesticides, herbicides, and other agricultural chemicals. It serves as a solvent in various industrial processes and as a raw material for producing dyes, pharmaceuticals, and specialty chemicals. The compound is also utilized in research applications and as a component in certain polymer manufacturing processes.
How to handle 1,2,4-trichlorobenzene safely?
Safe handling of 1,2,4-trichlorobenzene requires appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing. Work should be conducted in well-ventilated areas or under fume hoods to prevent inhalation exposure. Avoid direct skin contact and ensure emergency wash facilities are readily available. Follow all safety data sheet recommendations and workplace safety protocols.
How to store 1,2,4-trichlorobenzene correctly?
1,2,4-trichlorobenzene should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources and incompatible materials. Keep containers away from strong oxidizing agents and bases. Storage areas should be equipped with appropriate spill containment measures and maintained at stable temperatures to prevent degradation or hazardous reactions.
What to do in case of contact with 1,2,4-trichlorobenzene?
In case of skin contact with 1,2,4-trichlorobenzene, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. If eye contact occurs, flush with clean water for 15 minutes and seek medical attention. For inhalation exposure, move to fresh air immediately. Seek medical attention for any significant exposure or if symptoms develop.
How to dispose of 1,2,4-trichlorobenzene properly?
1,2,4-trichlorobenzene must be disposed of as hazardous waste through licensed waste management companies in compliance with local and European waste regulations. The substance cannot be disposed of in regular waste streams or poured down drains due to its environmental hazard classification. Incineration at high temperatures in authorized facilities is typically the preferred disposal method for this chlorinated compound.
How to transport 1,2,4-trichlorobenzene?
1,2,4-trichlorobenzene is classified under ADR as Class 6.1 (Toxic substances), Packaging Group III for transport purposes. It must be packaged in approved containers with appropriate hazard labels and documentation. Transport vehicles must comply with ADR regulations for toxic substances, and drivers require proper training and certification for handling hazardous materials during transportation.
Is 1,2,4-trichlorobenzene subject to specific regulations?
1,2,4-trichlorobenzene is subject to European REACH regulation and must comply with CLP classification requirements, displaying GHS07 and GHS09 pictograms with 'Warning' signal word. While not currently listed as a SVHC substance, it requires proper safety data sheets and hazard communication. Users must follow occupational exposure limits and environmental protection measures as specified by national and EU legislation.
Where to buy 1,2,4-trichlorobenzene in Europe?
1,2,4-trichlorobenzene is available through OYSI, a professional European distributor of specialty chemicals serving industrial customers across the region. OYSI provides technical-grade chemical products with proper documentation, safety data sheets, and regulatory compliance support. Contact OYSI directly for availability, specifications, and delivery options to meet your specific industrial or research requirements.
Services for 1,2,4-trichlorobenzene
Order 1,2,4-trichlorobenzene
Fast delivery across Europe
SDS Service
Request Safety Data Sheet for 1,2,4-trichlorobenzene
Technical Consulting
Application advice for 1,2,4-trichlorobenzene
REACH Safety Data Sheet
REACH Compliance Service
Digital Product Passport
EU-compliant product documentation
ADR Consulting for 1,2,4-trichlorobenzene
1,2,4-trichlorobenzene is a dangerous good. We support you with labeling, packaging, and transport documentation.
Data Sources
Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.