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2-Mercaptobenzothiazole(Benzothiazole-2-thiolj
/
Dibenzothiazyl@disulfide

2-Mercaptobenzothiazole
@@@(Benzothiazole-2-thiolj

CAS NumberF149-30-4

Dibenzothiazyl@disulfide

CAS NumberF120-78-5

Molecular weight

F

167.25

Molecular weight

F

332.49

Appearance

F

Light yellow powder

Appearance

F

Light yellow white powder

Melting point

F

173(min.)

Melting point

F

170(min.)

Solubility Solubility
Water F Practically insoluble Methanol F Practically insoluble
Methanol F Slightly soluble Water F Slightly soluble
Toluene F Slightly soluble Toluene F Slightly soluble
Acetone F Soluble Acetone F Practically insoluble

1. Outline

2-Mercaptobenzothiazole and Dibenzothiazyl disulfide are famous vulcanization accelerators for rubbers. Beside they are used as radical polymerization initiators, chain transfer agents, reforming agents, and assistants of photopolymerization initiators for resin. And the resin can be used for the electronic parts. Also they are used as reactants for pharmaceuticals1)2).

2-Mercaptobenzothiazole is used as corrosion inhibitor for copper forming organic layer on metalsf surface.

2-Mercaptobenzothiazole has less odor than mercaptan compounds though it has mercaptan group and it can be handled easily.

The disulfide bond of dibenzothiazyl disulfide cleaves at low temperature, and sulfur radical generates3)4).

We can supply the high purity 2-Mercaptobenzothiazole and Dibenzothiazyl disulfide in addition to rubber chemicals (our trade name are Sancelar M/DM), and they used in the reactants for pharmaceuticals.

Please inquire about high purity 2-Mercaptobenzothiazole and Dibenzothiazyl disulfide.

QDReactivity

2-Mercaptobenzothiazole
(Benzothiazole-2-thiol
j

@Tautomerism


AFree-radical reaction@

BIonization

Dibenzothiazyl@disulfide

@Free-radical reaction

RDUses

@@Vulcanization accelerators@

@@Corrosion inhibitor

@Raw materials for other vulcanization accelerators (Thiazoles, Sulfenamids)
Reactants for pharmaceutical
@@Radical polymerization initiators

Reference

@@@1jS. Torii, H. Tanaka, H. Okumoto, T.Shiroi, M. Sasaoka, Tetrahedron Lett. 25(9),2017-20i1984j

@2) S. Torii, H. Tanaka, H. Okumoto, T.Shiroi, M. Sasaoka, Tetrahedron Lett., 25(17),1801-4i1984j

@@@3jJ. C .D. Brand, J. R. Davidson, J. Chem. Soc., 1956, 15-22

@@@4jR.E.Davis, C.Perrin, J.Am.Chem.Soc.,82, 1590-1594(1960)

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