4-chloro-3-methylphenol

C7H7ClO

CAS59-50-7
GHS07 Gefahrensymbol: Gesundheitsschädlich/Reizend – Ausrufezeichen
GHS05 Gefahrensymbol: Ätzend – Ätzwirkung
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
Danger

Consulting for 4-chloro-3-methylphenol

Our experts support you with application, dosage, and compliance.

Request Consultation

Identification

CAS Number
59-50-7
EC Number
200-431-6
UN Number
3437
Index Number
604-014-00-3
PubChem CID
1732

Physical-chemical properties

Molecular Formula
C7H7ClO
Molar Mass
142.58 g/mol
IUPAC Name
4-chloro-3-methylphenol

Chemical Identifiers

InChI
InChI=1S/C7H7ClO/c1-5-4-6(9)2-3-7(5)8/h2-4,9H,1H3
InChI Key
CFKMVGJGLGKFKI-UHFFFAOYSA-N

Overview

4-chloro-3-methylphenol (CAS 59-50-7) is a chlorinated phenolic compound with antiseptic and preservative properties commonly used in industrial applications. This halogenated aromatic compound, also known by its IUPAC name 4-chloro-3-methylphenol, represents an important member of the chlorophenol family with molecular formula C7H7ClO and molecular weight of 142.58 g/mol. The compound features a phenolic hydroxyl group combined with chlorine and methyl substituents, which contribute to its distinctive chemical and biological properties. Its structural characteristics place it within the broader category of substituted phenols, sharing certain functional similarities with other industrial chemicals such as methyl(triphenyl)phosphanium chloride in terms of halogenated functionality. The substance presents significant safety considerations, classified under multiple hazard categories including Acute Toxicity 4, Skin Corrosion 1C, Eye Damage 1, and Skin Sensitization 1B. The presence of GHS pictograms GHS07, GHS05, and GHS09 indicates health hazards, corrosive properties, and environmental concerns respectively. Its ADR Class 6.1 classification requires careful handling protocols during transportation and storage. The compound exhibits notable aquatic toxicity, necessitating appropriate environmental protection measures. Primary industrial applications include antimicrobial formulations, where its phenolic structure provides effective biocidal activity, preservation systems for various industrial products, and as an intermediate in the synthesis of specialized chemicals. The compound's chlorinated structure offers enhanced stability compared to unsubstituted phenols, making it valuable in demanding industrial environments. OYSI maintains availability of 4-chloro-3-methylphenol for qualified industrial customers, supporting applications across multiple technical sectors with appropriate safety documentation and regulatory compliance materials.

Safety & Classification

Danger
Classification:

Acute Tox. 4; STOT SE 3; Skin Corr. 1C; Eye Dam. 1; Skin Sens. 1B; Aquatic Acute 1; Aquatic Chron...

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H302

Harmful if swallowed.

H335

May cause respiratory irritation.

H314

Causes severe skin burns and eye damage.

H318

Causes serious eye damage.

H317

May cause an allergic skin reaction.

H400

Very toxic to aquatic life.

H412

Harmful to aquatic life with long lasting effects.

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

Inhalation

Irritant

Measures if vapours or dust are inhaled

First Aid Actions

  • +P304IF INHALED:
  • +P340Remove person to fresh air and keep comfortable for breathing.
  • +P311Call a POISON CENTER/doctor.

Related hazard statements:

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:

Ingestion

Harmful

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 Number3437
ADR Class6.1
Packing GroupII
Tunnel CodeD/E
Proper Shipping Name4-Chlor-m-cresol, fest
Marine PollutantNo

Frequently Asked Questions

What is 4-chloro-3-methylphenol?

4-chloro-3-methylphenol is an organochlorine compound with the molecular formula C7H7ClO and CAS number 59-50-7. This chemical belongs to the phenol family and has a molecular weight of 142.58 g/mol. It is characterized by a benzene ring substituted with a hydroxyl group, a chlorine atom at the 4-position, and a methyl group at the 3-position, making it a halogenated phenolic derivative with specific chemical properties.

What are the physicochemical properties of 4-chloro-3-methylphenol?

4-chloro-3-methylphenol is typically a crystalline solid at room temperature with a characteristic phenolic odor. As a chlorinated phenol derivative, it exhibits moderate solubility in water and good solubility in organic solvents like alcohols and ethers. The presence of both the hydroxyl group and chlorine substituent influences its polarity and reactivity. Its molecular structure contributes to its stability under normal conditions while maintaining reactivity typical of phenolic compounds.

What is 4-chloro-3-methylphenol used for?

4-chloro-3-methylphenol is primarily used as an intermediate in chemical synthesis and pharmaceutical manufacturing. It serves as a building block for producing various organic compounds, including dyes, pharmaceuticals, and specialty chemicals. The compound finds applications in research and development activities, particularly in the synthesis of more complex molecules. Its phenolic structure makes it valuable for creating derivatives with enhanced biological or chemical properties for industrial applications.

How to handle 4-chloro-3-methylphenol safely?

4-chloro-3-methylphenol requires careful handling due to its classification as Danger with multiple hazard classes. Essential personal protective equipment includes chemical-resistant gloves, safety goggles, and protective clothing to prevent skin and eye contact. Work in well-ventilated areas or use fume hoods to avoid inhalation. The compound is corrosive to skin and eyes, toxic if swallowed, and may cause skin sensitization, requiring strict adherence to safety protocols during handling.

How to store 4-chloro-3-methylphenol correctly?

4-chloro-3-methylphenol should be stored in a cool, dry, well-ventilated area away from heat sources and incompatible materials. Keep containers tightly sealed and in original packaging to prevent contamination and moisture absorption. Store away from strong bases, oxidizing agents, and reactive metals. Ensure storage areas are equipped with appropriate spill containment measures and maintain temperature control to prevent decomposition or unwanted reactions.

What to do in case of contact with 4-chloro-3-methylphenol?

Immediate action is crucial due to the corrosive nature of 4-chloro-3-methylphenol. For skin contact, remove contaminated clothing and rinse affected area with copious amounts of water for at least 15 minutes. For eye contact, flush immediately with water for 15-20 minutes and remove contact lenses if present. If swallowed, do not induce vomiting and seek immediate medical attention. For inhalation, move to fresh air immediately and seek medical help if symptoms persist.

How to dispose of 4-chloro-3-methylphenol appropriately?

4-chloro-3-methylphenol must be disposed of as hazardous waste according to local and European regulations due to its toxic and environmental hazard classifications. The compound requires specialized treatment at authorized waste disposal facilities equipped to handle chlorinated organic compounds. Never dispose of down drains or in regular waste. Contact licensed waste management companies for proper collection and disposal, ensuring compliance with ADR transport requirements during waste removal.

How to transport 4-chloro-3-methylphenol?

4-chloro-3-methylphenol is classified under ADR Class 6.1 (Toxic substances) Packing Group II, indicating moderate toxicity requiring specific transport precautions. Packaging must comply with UN specifications for dangerous goods, using appropriate containers that prevent leakage and contamination. Transport vehicles must display proper hazard placards and carry emergency response information. Only trained personnel should handle the transport, and proper documentation including safety data sheets must accompany shipments.

Is 4-chloro-3-methylphenol subject to specific regulations?

4-chloro-3-methylphenol is regulated under European REACH and CLP regulations due to its hazardous properties, though it is not currently listed as a Substance of Very High Concern (SVHC). The compound must comply with classification and labeling requirements showing GHS pictograms GHS05, GHS07, and GHS09. Users must follow occupational exposure limits and implement appropriate risk management measures. Registration requirements may apply depending on import/manufacturing volumes and intended uses.

Where to buy 4-chloro-3-methylphenol in Europe?

4-chloro-3-methylphenol is available through OYSI, a trusted European distributor of specialty chemicals serving industrial and research customers across Europe. OYSI provides quality-assured products with complete documentation including safety data sheets and certificates of analysis. As an established chemical distributor, OYSI ensures compliance with European regulations and offers reliable supply chain management for customers requiring this specialized phenolic compound for their industrial or research applications.

Data Sources

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