Acelerator NS

Description

N-tert-butylbenzothiazole-2-sulphenamide · CAS 95-31-8 · C11H14N2S2. UNII W468IFJ99C. Melting Point: 104 °C (MIN); Density: 1.29 @ 25 °C.

Identification

CAS Registry Number	95-31-8
PubChem CID	7230
Molecular formula	C11H14N2S2
IUPAC name	N-(1,3-benzothiazol-2-ylsulfanyl)-2-methylpropan-2-amine
UNII (FDA)	W468IFJ99C

Computed Descriptors

Molecular Weight	238.4
XLogP3	3.4
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	3
Exact Mass	238.05984080
Monoisotopic Mass	238.05984080
Topological Polar Surface Area	78.5
Heavy Atom Count	15
Formal Charge	0

Physical & Chemical Properties

Melting Point	104 °C (MIN)
Density	1.29 @ 25 °C

Physical description & handling notes

• Dry Powder; Large Crystals; Large Crystals; Dry Powder; Other Solid
• Light beige solid; Sometimes blue; [HSDB] Light buff to tan powder; [MSDSonline]
• LIGHT BUFF POWDER OR FLAKES; SOMETIMES COLORED BLUE
• SOL IN MOST ORG SOLVENTS

Regulatory Status

Regulatory & Food Contact	FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS

GHS Hazard Classification

Reported hazard statements	H317 (99.6%), H400 (73.4%), H410 (92.6%), H373

Documented Uses

• Used as an accelerator for natural and synthetic isoprene rubbers and butadiene rubbers; [HSDB]
• ACCELERATOR FOR NATURAL & SYNTHETIC ISOPRENE RUBBERS
• ACCELERATOR FOR BUTADIENE RUBBERS, EG, STYRENE-BUTADIENE
• Not Known or Reasonably Ascertainable
• OXIDATIVE COUPLING OF 2-MERCAPTOBENZOTHIAZOLE & T-BUTYLAMINE USING EITHER SODIUM HYPOCHLORITE OR CHLORINE GAS & AIR
• 2023: 7,000,000 - <8,500,000 lb

Synonyms

N-tert-Butyl-2-benzothiazolesulfenamide; 95-31-8; Nocceler NS; Vulkacit NZ; Pennac Tbbs; Accel BNS; 2-(TERT-BUTYLAMINOTHIO)BENZOTHIAZOLE; Vanax NS; 2-Benzothiazolesulfenamide, N-(1,1-dimethylethyl)-; 2-Benzothiazolesulfenamide, N-tert-butyl-; Benzothiazolyl-2-tert-butylsulfenamide; N-tert-Butyl-2-benzothiazylsulfenamide; Santocure NS vulcanization accelerator; DTXSID7026572; N-tert-Butyl-2-benzothiazolyl sulfenamide; W468IFJ99C

Frequently Asked Questions

What are the CAS number and molecular formula of N-tert-butylbenzothiazole-2-sulphenamide?

CAS 95-31-8; molecular formula C11H14N2S2; molecular weight — g/mol.

What other names is N-tert-butylbenzothiazole-2-sulphenamide known by?

N-tert-Butyl-2-benzothiazolesulfenamide, 95-31-8, Nocceler NS, Vulkacit NZ, Pennac Tbbs, Accel BNS.

What is the regulatory status of N-tert-butylbenzothiazole-2-sulphenamide?

Documented regulatory listings: FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS.

Is N-tert-butylbenzothiazole-2-sulphenamide classified as hazardous?

Hazard statements reported: H317, H400, H410, H373.

What are the key physical properties of N-tert-butylbenzothiazole-2-sulphenamide?

Melting Point: 104 °C (MIN); Density: 1.29 @ 25 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.