Cas no 40398-00-3 (2-chloro-1-isocyanato-4-methylbenzene)

2-Chloro-1-isocyanato-4-methylbenzene is a reactive aromatic isocyanate derivative characterized by the presence of a chloro substituent at the 2-position and a methyl group at the 4-position of the benzene ring. This compound is primarily utilized as an intermediate in organic synthesis, particularly in the production of ureas, carbamates, and other isocyanate-based derivatives. Its structural features enhance reactivity in nucleophilic addition reactions, making it valuable for constructing complex molecular frameworks. The chloro and methyl substituents influence both electronic and steric properties, allowing for selective functionalization. Suitable for controlled reactions under anhydrous conditions, it is commonly employed in pharmaceutical and agrochemical research. Handle with appropriate precautions due to its potential toxicity and moisture sensitivity.
2-chloro-1-isocyanato-4-methylbenzene structure
40398-00-3 structure
Product Name:2-chloro-1-isocyanato-4-methylbenzene
CAS No:40398-00-3
MF:C8H6ClNO
MW:167.592340946198
MDL:MFCD03701592
CID:925734
PubChem ID:3016182
Update Time:2025-06-11

2-chloro-1-isocyanato-4-methylbenzene Chemical and Physical Properties

Names and Identifiers

    • 2-Chloro-4-methylphenyl isocyanate
    • 2-Chloro-1-isocyanato-4-methylbenzene
    • N-(2-CHLORO-4-METHYLPHENYL)ACETAMIDE
    • 2-chloro-1-isocyanato-4-methylbenzene(SALTDATA: FREE)
    • 3-Chloro-4-isocyanatotoluene
    • 4-methyl-2-chlorophenyl isocyanate
    • EINECS 254-906-8
    • DTXSID70193392
    • MFCD03701592
    • VS-14355
    • 2-CHLORO-4-METHYLPHENYL ISOCYANATE 97
    • STK502571
    • NS00030773
    • SCHEMBL3841180
    • Benzene, 2-chloro-1-isocyanato-4-methyl-
    • BBL037669
    • QVCZOTVTRWNPAF-UHFFFAOYSA-N
    • 2-Chloro-4-methylphenylisocyanate
    • AKOS005171106
    • G32168
    • 2-Chloro-4-methylphenyl isocyanate, 97%
    • EN300-146814
    • 40398-00-3
    • U65T5SBV9A
    • 2-chloro-1-isocyanato-4-methylbenzene
    • MDL: MFCD03701592
    • Inchi: 1S/C8H6ClNO/c1-6-2-3-8(10-5-11)7(9)4-6/h2-4H,1H3
    • InChI Key: QVCZOTVTRWNPAF-UHFFFAOYSA-N
    • SMILES: ClC1=C(C=CC(C)=C1)N=C=O

Computed Properties

  • Exact Mass: 167.01400
  • Monoisotopic Mass: 167.0137915g/mol
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 0
  • Hydrogen Bond Acceptor Count: 2
  • Heavy Atom Count: 11
  • Rotatable Bond Count: 1
  • Complexity: 177
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • Surface Charge: 0
  • Tautomer Count: nothing
  • XLogP3: 3.7
  • Topological Polar Surface Area: 29.4?2

Experimental Properties

  • Melting Point: 26-30?°C(lit.)
  • Boiling Point: 231-232?°C(lit.)
  • Flash Point: 225?°F
  • PSA: 29.43000
  • LogP: 2.61570

2-chloro-1-isocyanato-4-methylbenzene Security Information

  • WGK Germany:3
  • Hazard Category Code: 36/37/38
  • Safety Instruction: S26; S36
  • Hazardous Material Identification: Xi
  • Risk Phrases:R36/37/38

2-chloro-1-isocyanato-4-methylbenzene Customs Data

  • HS CODE:2929109000
  • Customs Data:

    China Customs Code:

    2929109000

    Overview:

    2929109000. Other isocyanates. VAT:17.0%. Tax refund rate:13.0%. Regulatory conditions:nothing. MFN tariff:6.5%. general tariff:30.0%

    Declaration elements:

    Product Name, component content, use to

    Summary:

    2929109000. other isocyanates. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

2-chloro-1-isocyanato-4-methylbenzene Pricemore >>

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Additional information on 2-chloro-1-isocyanato-4-methylbenzene

2-Chloro-1-Isocyanato-4-Methylbenzene (CAS No. 40398-00-3): An Overview of Its Properties, Applications, and Recent Research

2-Chloro-1-isocyanato-4-methylbenzene (CAS No. 40398-00-3) is a versatile organic compound that has gained significant attention in the fields of chemistry, pharmaceuticals, and materials science. This compound is characterized by its unique molecular structure, which includes a chloro group, an isocyanate group, and a methyl group attached to a benzene ring. These functional groups endow the compound with a range of chemical properties that make it valuable for various applications.

The chemical formula of 2-chloro-1-isocyanato-4-methylbenzene is C8H6ClNO. The presence of the isocyanate group (?NCO) makes it highly reactive and capable of participating in a variety of chemical reactions, such as the formation of urethanes and polyurethanes. The chloro and methyl groups further enhance its reactivity and solubility in organic solvents, making it an essential intermediate in the synthesis of more complex molecules.

In the pharmaceutical industry, 2-chloro-1-isocyanato-4-methylbenzene is used as a building block for the synthesis of drugs and drug intermediates. Its reactivity with amines and alcohols allows for the creation of diverse functional groups that can be tailored to specific therapeutic needs. Recent research has explored its potential in the development of new antiviral and anticancer agents. For instance, a study published in the Journal of Medicinal Chemistry highlighted the use of this compound in the synthesis of novel inhibitors targeting viral proteases, which are crucial for viral replication.

In materials science, 2-chloro-1-isocyanato-4-methylbenzene plays a crucial role in the production of high-performance polymers and coatings. The isocyanate group reacts with hydroxyl groups to form urethane linkages, which are known for their excellent mechanical properties and chemical resistance. This makes the compound ideal for applications in automotive coatings, adhesives, and sealants. A recent study in Polymer Chemistry demonstrated the use of this compound to develop novel polyurethane elastomers with enhanced thermal stability and mechanical strength.

The synthesis of 2-chloro-1-isocyanato-4-methylbenzene typically involves several steps. One common method involves the reaction of 2-chloro-4-methylbenzyl chloride with phosgene to form the isocyanate derivative. This process requires careful control of reaction conditions to ensure high yields and purity. Advances in green chemistry have led to the development of more sustainable synthesis methods that minimize environmental impact. For example, researchers at the University of California have reported a catalytic method using metal-free catalysts that significantly reduces waste generation and energy consumption.

The physical properties of 2-chloro-1-isocyanato-4-methylbenzene are also noteworthy. It is a colorless liquid at room temperature with a boiling point around 150°C under reduced pressure. Its density is approximately 1.15 g/cm3, and it has a moderate vapor pressure. These properties make it suitable for use in industrial processes where controlled conditions are necessary.

Safety considerations are paramount when handling 2-chloro-1-isocyanato-4-methylbenzene. The compound can cause skin irritation and respiratory issues if not handled properly. Therefore, appropriate personal protective equipment (PPE) such as gloves, goggles, and respirators should be used during handling. Additionally, it should be stored in tightly sealed containers away from heat sources and incompatible materials.

In conclusion, 2-chloro-1-isocyanato-4-methylbenzene (CAS No. 40398-00-3) is a multifaceted compound with significant applications in pharmaceuticals, materials science, and industrial processes. Its unique chemical structure and reactivity make it an indispensable intermediate in various synthetic pathways. Ongoing research continues to uncover new possibilities for its use, further solidifying its importance in modern chemistry.

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