2,4-dichloro-3-ethylphenol

C8H8Cl2O

CAS121518-45-4
GHS05 Gefahrensymbol: Ätzend – Ätzwirkung
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
Danger

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Identification

CAS Number
121518-45-4
EC Number
401-060-4
UN Number
2430
Index Number
604-023-00-2
PubChem CID
188723

Physical-chemical properties

Molecular Formula
C8H8Cl2O
Molar Mass
191.05 g/mol
IUPAC Name
2,4-dichloro-3-ethylphenol

Chemical Identifiers

InChI
InChI=1S/C8H8Cl2O/c1-2-5-6(9)3-4-7(11)8(5)10/h3-4,11H,2H2,1H3
InChI Key
DEHWRJWKQDWKDP-UHFFFAOYSA-N

Overview

2,4-dichloro-3-ethylphenol (CAS 121518-45-4) is a chlorinated phenolic compound with antimicrobial and preservative properties. This specialized chemical intermediate belongs to the family of halogenated phenols, characterized by two chlorine atoms positioned at the 2 and 4 positions of the benzene ring, along with an ethyl substituent at position 3. The molecular formula C8H8Cl2O represents a compound with a molecular weight of 191.05 g/mol, making it a relatively compact yet functionally diverse molecule in industrial chemistry applications. The presence of both chlorine substituents and the phenolic hydroxyl group confers significant antimicrobial activity to 2,4-dichloro-3-ethylphenol, while the ethyl group influences its solubility profile and biological activity. This structural combination results in a compound that exhibits strong corrosive properties, classified under GHS as Skin Corr. 1B, requiring careful handling protocols. Additionally, its environmental impact classification as Aquatic Acute 1 and Aquatic Chronic 1 indicates significant toxicity to aquatic organisms, necessitating proper waste management procedures. Safety considerations are paramount when working with this compound, as indicated by the Danger signal word and associated pictograms GHS05 and GHS09. The ADR classification of Class 8 confirms its corrosive nature during transportation and storage. Unlike more complex chemical intermediates such as benzyl carbonochloridate, this phenolic derivative offers straightforward handling characteristics when proper safety protocols are maintained. Primary industrial applications include use as a biocide in specialized formulations, as an intermediate in pharmaceutical synthesis, and as a preservative agent in technical applications where antimicrobial properties are essential. OYSI maintains reliable supply chains for 2,4-dichloro-3-ethylphenol to support European industrial customers requiring this specialized chemical intermediate.

Safety & Classification

Danger
Classification:

Skin Corr. 1B; Aquatic Acute 1; Aquatic Chronic 1

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H314

Causes severe skin burns and eye damage.

H400

Very toxic to aquatic life.

H410

Very toxic to aquatic life with long lasting effects.

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

Harmful

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:

Eye Contact

Harmful

Measures if substance gets into the eyes

First Aid Actions

  • +P305IF IN EYES:
  • +P351Rinse cautiously with water for several minutes.
  • +P338Remove contact lenses, if present and easy to do. Continue rinsing.
  • +P313Get medical advice/attention.

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 Number2430
ADR Class8
Packing GroupII
Tunnel CodeE
Proper Shipping Name2,4-Dichlor-3-ethylphenol, fest
Marine PollutantNo

Frequently Asked Questions

What is 2,4-dichloro-3-ethylphenol?

2,4-dichloro-3-ethylphenol is an organochlorine compound with the molecular formula C8H8Cl2O and CAS number 121518-45-4. This chemical belongs to the phenol family and features two chlorine atoms and one ethyl group attached to a phenol ring. With a molecular weight of 191.05 g/mol, it is classified as a corrosive substance with significant environmental hazard properties, requiring careful handling and storage procedures.

What are the physicochemical properties of 2,4-dichloro-3-ethylphenol?

2,4-dichloro-3-ethylphenol is a chlorinated phenolic compound with a molecular weight of 191.05 g/mol and molecular formula C8H8Cl2O. As a substituted phenol, it typically exists as a solid at room temperature with characteristic phenolic odor. The presence of chlorine substituents affects its solubility properties and chemical reactivity. Specific physical properties such as melting point, boiling point, and exact solubility data should be obtained from detailed technical specifications.

What is 2,4-dichloro-3-ethylphenol used for?

2,4-dichloro-3-ethylphenol is primarily used in industrial applications as an intermediate in chemical synthesis and manufacturing processes. Its phenolic structure and chlorine substituents make it valuable for producing specialized chemicals, potentially including pharmaceuticals, agrochemicals, or polymer additives. The specific applications depend on its unique chemical properties, though detailed usage information should be confirmed with technical documentation due to its hazardous classification requiring specialized handling protocols.

How to handle 2,4-dichloro-3-ethylphenol safely?

2,4-dichloro-3-ethylphenol requires strict safety measures due to its Skin Corr. 1B classification. Always wear appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing when handling. Work in well-ventilated areas or under fume extraction systems. Avoid direct skin and eye contact as the substance can cause severe burns. Follow proper hygiene procedures, including thorough hand washing after handling, and ensure emergency shower and eyewash stations are accessible.

How to store 2,4-dichloro-3-ethylphenol correctly?

2,4-dichloro-3-ethylphenol must be stored in a cool, dry, well-ventilated area away from incompatible materials. Use corrosion-resistant containers with tight-fitting lids to prevent contamination and vapor release. Keep away from heat sources, direct sunlight, and oxidizing agents. Store in areas with appropriate containment systems to prevent environmental release. Ensure storage areas are accessible only to trained personnel and equipped with appropriate spill control materials and safety equipment.

What to do in case of contact with 2,4-dichloro-3-ethylphenol?

2,4-dichloro-3-ethylphenol contact requires immediate action due to its corrosive nature. For skin contact, immediately remove contaminated clothing and flush affected area with copious amounts of water for at least 15 minutes. In case of eye contact, rinse immediately with clean water for 15-20 minutes while holding eyelids open. If inhaled, move to fresh air immediately. Seek immediate medical attention in all cases of exposure. Do not induce vomiting if ingested.

How to dispose of 2,4-dichloro-3-ethylphenol appropriately?

2,4-dichloro-3-ethylphenol disposal must comply with local and European waste regulations due to its hazardous classification. The substance cannot be disposed of in regular waste streams and requires treatment by licensed hazardous waste disposal companies. Contact certified waste management specialists for proper collection and treatment. Ensure proper documentation throughout the disposal process. Small quantities should be collected and stored safely until sufficient volume justifies professional disposal services.

How to transport 2,4-dichloro-3-ethylphenol?

2,4-dichloro-3-ethylphenol is classified as ADR Class 8 (Corrosive substances), Packing Group II, requiring specialized transport procedures. Use appropriate UN-approved packaging designed for corrosive materials. Transport vehicles must carry proper documentation, emergency response information, and appropriate safety equipment. Only trained personnel should handle the transportation, and drivers must possess ADR certification. Ensure packages are properly labeled with hazard pictogrammes and comply with quantity limitations for different transport categories.

Is 2,4-dichloro-3-ethylphenol subject to specific regulations?

2,4-dichloro-3-ethylphenol is subject to European chemical regulations including REACH and CLP classifications. It is classified under CLP regulation with specific hazard classes (Skin Corr. 1B, Aquatic Acute 1, Aquatic Chronic 1) requiring appropriate labeling and safety data sheets. While not currently listed as SVHC, its environmental hazard classification means it may be subject to restrictions on use and discharge. Users must comply with occupational safety regulations and environmental protection requirements.

Where to buy 2,4-dichloro-3-ethylphenol in Europe?

2,4-dichloro-3-ethylphenol is available through OYSI, a specialized European distributor of technical chemicals. As an experienced chemical supplier, OYSI provides professional-grade chemicals with complete documentation including safety data sheets and certificates of analysis. Their European distribution network ensures reliable supply chains for industrial customers. Contact OYSI directly for specific availability, technical specifications, and regulatory compliance documentation. Professional guidance on handling and regulatory requirements is included with purchases.

Data Sources

Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.