4979-32-2

Basic information

• Product Name: N,N-Dicyclohexyl-2-benzothiazolsulfene amide
• Synonyms: 2-Benzothiazolesulfenamide, N,N-dicyclohexyl-;N,N-DICYCLOHEXYLBENZOTHIAZOLE-2-SULFENAMIDE(ACCELERATORDZ);N,N-Dicyclohexyl-2-benzothiazyl sulfenamide;Benzothiazyl-2-dicyclohexylsulfenamid;meramid dchm;N,N-Dicyclohexyl-2-benzothiazolensulfenamide;2-(Dicyclohexylsulfenamoyl)benzothiazole;2-[(Biscyclohexylamino)thio]benzothiazole
• CAS NO: 4979-32-2
• Molecular Formula: C₁₉H₂₆N₂S₂
• Molecular Weight: 346.55
• EINECS: 225-625-8
• Product Categories: Rubber Chemicals
• Mol File: 4979-32-2.mol
• Article Data: 5

Chemical Properties

• Melting Point: 104℃
• Boiling Point: 230°C (rough estimate)
• Flash Point: 248 °C
• Appearance: light yellow powder
• Density: 1.20
• Vapor Pressure: 2.25E-11mmHg at 25°C
• Refractive Index: 1.5800 (estimate)
• Storage Temp.: Sealed in dry,Room Temperature
• PKA: 0.43±0.20(Predicted)
• Water Solubility: 1.9μg/L at 25℃
• CAS DataBase Reference: N,N-Dicyclohexyl-2-benzothiazolsulfene amide(CAS DataBase Reference)
• NIST Chemistry Reference: N,N-Dicyclohexyl-2-benzothiazolsulfene amide(4979-32-2)
• EPA Substance Registry System: N,N-Dicyclohexyl-2-benzothiazolsulfene amide(4979-32-2)

Safety Data

• Hazardous Substances Data: 4979-32-2(Hazardous Substances Data)

Usage

Flammability and Explosibility

Notclassified

Contact allergens

This substance is a rubber accelerator of the mercapto- benzothiazole-sulfenamide group.

InChI:InChI=1/C19H26N2O2S2/c22-25(23,19-20-17-13-7-8-14-18(17)24-19)21(15-9-3-1-4-10-15)16-11-5-2-6-12-16/h7-8,13-16H,1-6,9-12H2

Upstream product

• 120-78-5 di(benzothiazol-2-yl)disulfide 
• 101-83-7 N-cyclohexyl-cyclohexanamine 
• 149-30-4 2-Mercaptobenzothiazole 
• 7757-83-7 sodium sulfite 
• 108-91-8 cyclohexylamine 

Downstream Products

• 111618-71-4 CoCl₂(SC(CH)4CNCSN(C₆H₁₁)2)2 
• 115367-25-4 Zn(N,N-dicyclohexyl-2-benzthiazolylsulfenamide)2Cl₂ 
• 104881-47-2 (N,N-dicyclohexyl-2-benzothiazolesulfenamide)copper(II) bromide 
• 140673-44-5 CoBr₂(SC(CH)4CNCSN(C₆H₁₁)2)2 
• 115345-14-7 Zn(N,N-dicyclohexyl-2-benzthiazolylsulfenamide)2Br₂ 
• 21588-52-3 2-N,N-dicyclohexylaminosulphinyl-benzothiazole 

Relevant articles and documents

Continuous production method for vulcanization accelerator DCBS

The invention provides a continuous production method for vulcanization accelerator DCBS. The continuous production method includes the steps that an MBT alkali solution, a dicyclohexylamine acid solution, solvent and oxidizing agent are subjected to an oxidizing reaction in a continuous flow reactor, then reacted materials are after-treated, and the vulcanization accelerator DCBS is obtained. According to the method, the MBT conversion percent is high, and the purity of the product is high; the continuous production method has the advantages of being high in reaction speed, high in product yield, low in wastewater COD (reacted wastewater is subjected to atmospheric distillation, residual solvent is recycled, and then the COD in residual water can be reduced to be 8,000 ppm or below), capable of facilitating treatment and the like, and is a new technology having the higher industry value.

Process for the preparation of benzothiazole-2-sulphenamides

In a process for the production of benzothiazole-2-sulphenamides, a 2-mercaptobenzothiazole in the form of a particulate solid or a dispersion of a particulate solid in a liquid carrier is added gradually and concurrently with an aqueous solution of sodium hypochlorite to a solution of an amine in a mixture of water and a water-miscible organic solvent, the amount of amine being not more than 1.25 moles per mole of 2-mercaptobenzothiazole. A feature of the process is that it represents a significant improvement over prior art methods for the production of sulphenamides derived from secondary amines such as dicyclohexylamine and diisopropylamine.

Process for the preparation of thiazolesulphenamides

Thiazolesulphenamides, useful as rubber vulcanization accelerators, are made by reaction of a 2-mercapto-thiazole or a 2,2'-dithiazolyl disulphide with ammonia or a primary or secondary amine in the presence of oxygen and a copper catalyst of specified kind.