Properties & Applications & PackagesInquiry

Product Overview

N,N-Dicyclohexyl-2-benzothiazolesulfenamide (DCBS) is a delayed-action, sulfenamide-type rubber accelerator that provides excellent scorch safety, good processing stability and reliable curing performance. It is commonly selected for rubber compounds that require longer processing time and controlled vulcanization.
Light yellow powder. Easily soluble in benzene, methylene chloride, carbon tetrachloride, soluble in ethyl acetate, ethanol, acetone and gasoline, but insoluble in water.

Key Specifications

Melting Point	104℃
Boiling Point	230°C (rough estimate)
Density	1.20
Vapor Pressure	0Pa at 25℃
Refractive Index	1.5800 (estimate)
Storage Temp.	Sealed in dry,Room Temperature
Solubility	Acetone (Slightly), Acetonitrile (Slightly), DMSO (Slightly)
PKA	0.43±0.20(Predicted)
Form	Solid
Color	Pale Yellow to Light Yellow
Water Solubility	1.9μg/L at 25℃

Performance Benefits

Improves scorch safety during mixing and shaping.
Supports stable vulcanization and processing control.
Suitable for high-temperature processing conditions.
Widely used in tire and technical rubber formulations.

Typical Applications

Tires and tire components
Rubber hoses and belts
Seals, gaskets and molded rubber goods
NR, SBR, NBR and EPDM compounds
Industrial rubber products requiring delayed curing
It is used as a post-effect accelerator for natural rubber, butadiene rubber, butylaniline, isopentyl rubber, etc. Good dispersion properties in rubber. The scorch time in natural rubber compounds is longer than that of accelerator DIBS, so the operation safety is higher. The vulcanization speed at vulcanization temperature is similar to that of accelerator DIBS. The vulcanization flatness is similar to that of accelerator CZ.

The moldless steam vulcanization of the rubber containing this product is slightly faster than the flat vulcanization. It is suitable for rubber materials with large amounts of highly active reinforcing agents, and also suitable for rubber materials mainly composed of polybutadiene rubber or recycled rubber. The mechanical properties of vulcanized rubber, especially the dynamic properties, are relatively good, and the elasticity and elongation strength are high. Because vulcanized rubber has a bitter taste, it is not suitable for manufacturing rubber products that come into contact with food. Mainly used in the manufacture of tires, tapes, shock-absorbing products and backing rubber for retreading tires.

Packaging, Grades & Supply

We supply N,N-Dicyclohexyl-2-benzothiazolesulfenamide (DCBS) in bags, cartons and bulk packaging for industrial buyers. COA and MSDS are available with each order. For procurement teams and distributors, please ask for the current pricing and bulk supply terms based on your required volume.

Why choose Greenchem International?

Stable export supply and strict quality control.
Flexible packaging and bulk logistics support.
Technical support for rubber formulation and application selection.
Competitive commercial terms for long-term buyers.

Ordering & Inquiry

To buy N,N-Dicyclohexyl-2-benzothiazolesulfenamide (DCBS, CAS 4979-32-2) or request COA, MSDS and a competitive quotation, please share your required grade, quantity and delivery country. We will reply with lead time and pricing.