3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea

C9H10Cl2N2O2

CAS330-55-2
GHS08 Gefahrensymbol: Gesundheitsgefahr – Gesundheitsgefahr
GHS07 Gefahrensymbol: Gesundheitsschädlich/Reizend – Ausrufezeichen
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
Danger

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Identification

CAS Number
330-55-2
EC Number
206-356-5
UN Number
3077
Index Number
006-021-00-1
PubChem CID
9502

Physical-chemical properties

Molecular Formula
C9H10Cl2N2O2
Molar Mass
249.09 g/mol
IUPAC Name
3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea

Chemical Identifiers

InChI
InChI=1S/C9H10Cl2N2O2/c1-13(15-2)9(14)12-6-3-4-7(10)8(11)5-6/h3-5H,1-2H3,(H,12,14)
InChI Key
XKJMBINCVNINCA-UHFFFAOYSA-N

Overview

3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea (CAS 330-55-2) is a substituted phenylurea herbicide with selective systemic properties and metabolic disruption mechanisms. This chlorinated aromatic compound belongs to the phenylurea family of herbicides, characterized by its dichlorophenyl group and methoxy-methyl substitution pattern. The molecular structure C9H10Cl2N2O2 provides both selective herbicidal activity and specific toxicological properties that require careful handling protocols. With a molecular weight of 249.09 g/mol, this substance exhibits moderate persistence in environmental systems and demonstrates significant biological activity through photosystem inhibition mechanisms. The compound presents multiple hazard classifications under CLP regulation, including carcinogenic potential (Category 2), reproductive toxicity (Category 1B), and specific target organ toxicity following repeated exposure (Category 2). These classifications necessitate strict occupational safety measures and environmental monitoring protocols. The acute toxicity profile (Category 4) and aquatic toxicity classifications (Acute Category 1, Chronic Category 1) emphasize the importance of proper containment and disposal procedures. Transport classification under ADR Class 9 indicates miscellaneous dangerous goods status requiring appropriate documentation and handling procedures. Industrial applications primarily focus on selective pre-emergence and early post-emergence herbicidal treatments in agricultural systems, particularly for broadleaf weed control in cereal crops. The compound also finds specialized use in vegetation management programs where selective control mechanisms are required. Unlike structurally different compounds such as 4-[(4-amino-3-chlorophenyl)methyl]-2-chloroaniline, this phenylurea derivative operates through specific chloroplast disruption pathways. OYSI maintains technical-grade supplies of 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea for qualified industrial customers across European markets, supporting both agricultural and specialized chemical manufacturing applications.

Safety & Classification

Danger
Classification:

Carc. 2; Repr. 1B; Acute Tox. 4 *; STOT RE 2 *; Aquatic Acute 1; Aquatic Chronic 1

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H351

Suspected of causing cancer.

H302

Harmful if swallowed.

H373

May cause damage to organs through prolonged or repeated exposure.

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

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 Number3077
ADR Class9
Packing GroupIII
Tunnel Code-
Proper Shipping NameLinuron (ISO)
Marine PollutantNo

Frequently Asked Questions

What is 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea?

3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea is an organic chemical compound with the molecular formula C9H10Cl2N2O2 and CAS number 330-55-2. This substituted urea derivative has a molecular weight of 249.09 g/mol and contains dichlorophenyl and methoxy functional groups. It is classified as a hazardous substance with multiple health and environmental concerns, requiring careful handling and specialized safety measures during use and storage.

What are the physicochemical properties of 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea?

3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea is a solid compound at room temperature with a molecular weight of 249.09 g/mol. The presence of chlorine atoms and the urea backbone influence its polarity and solubility characteristics. As an organic compound containing both polar and non-polar regions, its solubility varies depending on the solvent system used. Specific physical properties should be verified from technical data sheets for precise applications.

What is 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea used for?

3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea is primarily used as a herbicide and plant growth regulator in agricultural applications. Its chemical structure allows it to interfere with specific plant metabolic processes, making it effective for weed control and vegetation management. Due to its classification as a carcinogenic and reprotoxic substance, its use is strictly regulated and limited to professional applications with appropriate safety measures and regulatory compliance.

How to handle 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea safely?

3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea requires strict safety protocols due to its carcinogenic and reprotoxic properties. Essential PPE includes chemical-resistant gloves, protective clothing, safety goggles, and respiratory protection when airborne exposure is possible. Work in well-ventilated areas or under fume extraction systems. Avoid skin contact, inhalation, and ingestion. Implement proper hygiene measures including washing hands thoroughly after handling and changing contaminated clothing immediately.

How to store 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea correctly?

3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea must be stored in a cool, dry, well-ventilated area away from heat sources and direct sunlight. Keep containers tightly sealed in original packaging with appropriate hazard labeling. Store separately from incompatible materials, food, and drinking water. Implement restricted access controls due to its toxic properties. Storage areas should have appropriate spill containment measures and emergency equipment readily available for safe handling.

What to do in case of contact with 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea?

Immediate decontamination is essential following contact with 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea. For skin contact, remove contaminated clothing and wash affected area thoroughly with soap and water for at least 15 minutes. If inhaled, move to fresh air immediately. For eye contact, rinse with clean water for 15 minutes. In case of ingestion, do not induce vomiting and seek immediate medical attention. Contact poison control and provide safety data sheet information to medical personnel.

How to dispose of 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea appropriately?

3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea must be disposed of as hazardous waste through authorized waste management facilities. Due to its toxic and environmental properties, it cannot be disposed of with regular waste or down drains. Collect waste in appropriate containers with proper labeling and documentation. Follow local and national regulations for hazardous waste disposal, including waste classification codes and transport requirements to licensed treatment facilities.

How to transport 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea?

3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea is classified under ADR Class 9 (miscellaneous dangerous goods), Packing Group III for transport purposes. Packages must be properly labeled with appropriate hazard markings and transport documentation. Use approved packaging materials that meet ADR specifications for Class 9 substances. Transport vehicles require appropriate placarding and drivers must have ADR certification. Ensure proper segregation from incompatible materials during transport and have emergency response information readily available.

Is 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea subject to specific regulations?

3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea is subject to extensive regulatory oversight under REACH and CLP regulations in Europe. Its classification as Carc. 2 and Repr. 1B triggers specific authorization and restriction requirements. The substance requires safety data sheets, hazard communication, and may be subject to use restrictions or authorization procedures. Aquatic toxicity classifications also invoke environmental protection measures. Users must ensure compliance with occupational exposure limits and workplace safety regulations.

Where to buy 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea in Europe?

3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea is available through OYSI, a specialized European chemical distributor with expertise in hazardous substances. OYSI provides comprehensive regulatory compliance support, proper packaging, and technical documentation required for this classified substance. Due to its restricted nature, purchases typically require verification of legitimate use, appropriate handling capabilities, and regulatory compliance. Contact OYSI directly for availability, specifications, and regulatory guidance for your specific application requirements.

Data Sources

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