N-TERT-BUTYL-2-BENZOTHIAZOLESULFENAMIDE (TBBS)

N-TERT-BUTYL-2-BENZOTHIAZOLESULFENAMIDE
PRODUCT IDENTIFICATION
CAS NO.	95-31-8
EINECS NO.	202-409-1
FORMULA	C₁₁H₁₄N₂S₂
MOL WT.	238.37
H.S. CODE	2934.20
TOXICITY	Mouse LD50 (intravenous): 180mg/kg
SYNONYMS	N-tert-Butyl-2-Benzothiazolesulfenamide; TBBS;
2-(tert-Butylaminothio)benzothiazole; N-(1,1-Dimethylethyl)-2-benzothiazolesulfenamide; Benzothiazolyl-2-tert-butylsulfenamide; N-(1,1-Dimethylethyl)benzothiazolesulfenamide; Santocure NS vulcanization accelerator; Vanax NS; Vulkacit NZ; Other RN: 40860-78-4; 172451-95-5; 179095-45-5
SMILES	c12c(sc(n1)SNC(C)(C)C)cccc2
CLASSIFICATION	Vulcanization accelerator
PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE	off white to tan powder
MELTING POINT	105 C
BOILING POINT
SPECIFIC GRAVITY
SOLUBILITY IN WATER
AUTOIGNITION
pH
VAPOR DENSITY
NFPA RATINGS	Health: 1; Flammability: 0; Reactivity: 0
FLASH POINT
STABILITY	Stable under ordinary conditions
APPLICATIONS
Sulfur combines with nearly all elements. Sulfur forms ring and chain structures as it is the second only to carbon in exhibiting catenation. The 8-membered ring and shorter chain structure of sulfur molecule is important in vulcanization process which individual polymers are linked to other polymer molecules by atomic bridges. This process produces thermoset materials which are cross-linked and irreversible substances. The term thermoplastic is for high molecular weight polymers which can undergo melting-freezing cycle. Thermosets are not melted and re-molded on heating after cured. The split of sulfur 8-membered ring structure into shorter chains provides rubber vulcanization process. The split are liked with cure sites (some of the solid bonds in the molecule) on rubber molecules, resulting in forming sulfur bridges typically between 2 and 10 atoms long. Vulcanization makes rubber harder, more durable and more resistant to heating, aging and chemical attacks. The number of sulfur atoms in the sulfur bridges varies physical properties of the end products. Short bridges containing one or two sulfur atoms offer heat resistance and long bridges offer flexible property. Vulcanization can also be accomplished with certain peroxides, gamma radiation, and several other organic compounds. The principal classes of peroxide cross-linking agents are dialkyl and diaralkyl peroxides, peroxyketals and peroxyesters. Other vulcanizing agents include amine compounds for the cross-linking of fluorocarbon rubbers, metal oxides for chlorine-containing rubbers (notably zinc oxide for chloroprene rubber) and phenol-formaldehyde resins for the production of heat-resistant butyl rubber vulcanizates. Accelerator, in the rubber industry, is added with a curing agent to speed the vulcanization. Accelerators contain sulfur and nitrogen like derivatives of benzothiazole and thiocarbanilides. The popular accelerators are sulfenamides (as a delayed-action accelerators), thiazoles, thiuram sulfides, dithocarbamates and guanidines. There are some types of rubber accelerators. They are used in combination with each other in accordance with vulcanizing and/or acid-base conditions. Some examples classified by chemical structure are as below; Thiazole 2-Mercaptobenzothiazole (CAS #: 149-30-4) Dibenzothiazole disulfide (CAS #: 120-78-5) 2-Mercaptobenzothiazole Zinc salt (CAS #: 155-04-4) Sulphenamide N-Cyclohexyl-2-benzothiazole sulfenamide (CAS #: 95-33-0) N-Oxydienthylene-2-benzothiazole sulfenamide (CAS #: 102-77-2) N-tert-butyl-2-benzothiazyl sulfenamide (CAS #: 95-31-8) Guanidine Diphenyl guanidine (CAS #: 102-06-7) Di-o-tolylguanidine (CAS #: 97-39-2) Thiuram Tetramethyl thiuram disulfide (CAS #: 137-26-8) Tetraethyl thiuram disulfide (CAS #: 97-77-8) Tetramethyl thiuram monosulfide (CAS #: 97-74-5) Isobutyl thiuram disulfide (CAS #: 3064-73-1) Tetrabenzylthiuram disulfide (CAS #: 10591-85-2) Dipentamethylene thiuramtetrasulfide (CAS #: 120-54-7) Dithiocarbamate Zinc dimethyl dithiocarbamate (CAS #: 137-30-4) Zinc diethyl dithiocarbamate (CAS #: 14324-55-1) Zinc dibutyl dithiocarbamate (CAS #: 136-23-2) Zinc N-ethyl-dithiocarbamate (CAS #: 14634-93-6) Zinc dibenzyl dithiocarbamate (CAS #: 14726-36-4) Copper dimethyl dithiocarbamate (CAS #: 137-29-1) Thiourea Ethylene thiourea (CAS #: 96-45-7) N,N'-Diethylthiourea (CAS #: 105-55-5) N-N'-Diphenylthiourea (CAS #: 102-08-9)
SALES SPECIFICATION
APPEARANCE	off white to tan dust suppressed powder
ASSAY	95.0% min
MELTING POINT	105 C (Initial), 107 - 112 C (final)
MOISTURE	0.4% max
ASH	0.4% max
INSOLUBLES	0.5% max (in methanol)
PARTICLE SIZE	0.1% max (+150 µm), 0.5% max (+65 µm)
TRANSPORTATION
PACKING
HAZARD CLASS
UN NO.
GENERAL DESCRIPTION & THIAZOLE
Thiazole is a heterocyclic organic compound that has a five-member ring molecular structure, C₃H₃NS, containing three carbon atoms, one sulphur atom, and one nitrogen atom. It is a clear to yellowish liquid with a pyridine like odor. It is soluble in alcohol and ether and slightly soluble in water. It is parent material for numerous of chemical compounds including sulfur drugs, biocides, fungicides, dyes, chemcal reaction accelerators. Thiazole dyes contain the color radicals of =C=N- and -S-C= which decide colors to a compound . Azo dyes contain -N=N- radical. Thiazole dyes are useful in dying cotton. Benzothiazole is a thiazole fused to a benzene ring. Benzothiazole derivatives are important in the industry of dyes, photographic chemicals, sulfa drugs and rubber. Thiabendazole, a substituted derivative of benzimidazole, is used as broad-spectrum anthelmintic and presevative. Some thiazole derivatives, belong to a class of cyclic sulfur organo products containing sulfur atom (S) and often oxygen (O), nitrogen (N), hydrogen (H), as well as other elements, can find application for making biological activitive agents such as antiviral, antibacterial, antifungal , antituberculous, antbody and antifungal agents. Thiazole and its derivatives are also used as thiol flavouring substances.