TBBS (NS), CAS 95-31-8
TBBS (NS) (CAS 95-31-8), also known as N-tert-Butyl-2-benzothiazolesulfenamide, is an important sulfenamide-type rubber vulcanization accelerator. It is widely used in natural rubber and synthetic rubber compounds.
TBBS provides a good balance between scorch safety and fast curing performance. It is commonly used in sulfur vulcanization systems and can be used alone or in combination with secondary accelerators to optimize curing performance, modulus development and aging resistance. It is widely used in tires, rubber belts, hoses and other industrial rubber products.
Product Chemical Properties
Product Name: TBBS (NS)
CAS No.: 95-31-8
Molecular Formula: C11H14N2S2
Molecular Weight: 238.37
Chemical Name: N-tert-Butyl-2-benzothiazolesulfenamide
Synonyms: TBBS, NS, Accelerator TBBS, Accelerator NS, Rubber Accelerator TBBS, Rubber Accelerator NS, N-tert-Butylbenzothiazole-2-sulfenamide, Benzothiazolyl-2-tert-butylsulfenamide

Product Technical Specification
Appearance: White or light yellow powder, granular
Initial M.P, ℃ ≥: 104.0
Loss on drying, % ≤: 0.40
Ash, % ≤: 0.30
Residues on 150μm sieve, % ≤: 0.10
Insoluble in Methanol,% ≤: 1.00
Free amine,% ≤: 0.5
Applications of TBBS (NS)
This product is a delayed-action accelerator for natural rubber, polybutadiene rubber (BR), polyisoprene rubber (IR), styrene-butadiene rubber (SBR), and reclaimed rubber; it is particularly suitable for rubber compounds containing highly alkaline carbon black. It offers processing safety, excellent scorch resistance, rapid vulcanization, and high modulus, while allowing for a higher proportion of synthetic rubber in the mix. Low in toxicity and highly efficient, it serves as an ideal substitute for NOBS; due to its excellent overall performance, it is regarded as a standard accelerator. It is widely used in the production of radial tires. It can be used in combination with aldehyde-amine, guanidine, and thiuram accelerators, and forms an effective vulcanization system when paired with the scorch retarder PVI. It is primarily used in the manufacture of tires, rubber footwear, hoses, conveyor belts, and cables.
Packaging
25kg/bag.
Production Capacity
19000 MT per year.

Storage Requirements
Store the product in a cool, dry and well-ventilated area.
Keep the packaged product away from direct sunlight, moisture and excessive heat.
Keep containers tightly closed when not in use.
The validity is 1 year.
TBBS (NS) Bulk Supply from China
Hosea Chem® offers TBBS (NS) (CAS 95-31-8), also known as N-tert-Butyl-2-benzothiazolesulfenamide, in bulk quantities with competitive factory-direct pricing and reliable export service.
We support international shipments in 25 kg bags and other suitable packaging options. TDS, MSDS and COA are available upon request.
Contact Hosea Chem for the latest TBBS price, bulk quotation, availability and technical documents.