|Preferred IUPAC name
3D model (JSmol)
CompTox Dashboard (EPA)
|Molar mass||238.34 g·mol−1|
|Appearance||Red to brown liquid with pungent odor |
|Melting point||−10 °C (14 °F; 263 K)|
|Boiling point||191 °C (376 °F; 464 K)|
|Very slightly soluble (0.125 g/L at 24 ° C)|
|Vapor pressure||9.0×10−6 mmHg|
|H302, H312, H315, H317, H319, H330, H410|
|P260, P261, P264, P270, P271, P272, P273, P280, P284, P301+P312, P302+P352, P304+P340, P305+P351+P338, P310, P312, P320, P321, P322, P330, P332+P313, P333+P313, P337+P313, P362, P363, P391, P403+P233, P405, P501|
|Lethal dose or concentration (LD, LC):|
LD50 (median dose)
|679 mg/kg (rat, oral)|
200 mg/kg (rabbit, dermal)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
TCMTB is an oily, flammable, red to brown liquid with a pungent odor that is very slightly soluble in water. It decomposes on heating producing hydrogen cyanide, sulfur oxides, and nitrogen oxides. The degradation products are 2-mercaptobenzothiazole (2-MBT) and 2-benzothiazolesulfonic acid.
TCMTB is used as wideband microbicide, paint fungicide, and paint gallicide. The active substance approved in 1980 in the United States. It is used, for example, in leather preservation, for the protection of paper products, in wood preservatives, and against germs in industrial water.
It is also used when dealing with fungal problems when extracting hydrocarbons via fracking.
TCMTB contributes to health problems in tannery workers as it is a potential carcinogen, and is a hepatotoxin. It is also a skin sensitizer, and may cause contact dermatitis in those exposed to the poisonous compound.  Hence, it is mainly used in developing countries.
- Thomas Swan: Coating Additives & Leather Fungicides
- Record of CAS RN 21564-17-0 in the GESTIS Substance Database of the Institute for Occupational Safety and Health, accessed on 3. August 2012.
- EPA: Reregistration Eligibility Decision for 2- (thiocyanomethylthio) benzothiazoles (TCMTB) (PDF; 2.7 MB), August 2006.
- Engin Bagda (2000). Biocides in Building Coatings. expert publisher. p. 59. ISBN 3-81691861-1.
- Levant, Ezra (2014). Groundswell: The Case for Fracking. McClelland & Stewart. p. 192.
- Commission Regulation (EC) No 2076/2002 of 20 November 2002. EUR-Lex Act 319, pp. 3–11 (PDF) "On the extension of the deadline laid down in Article 8 (2) of Council Directive 91/414 / EEC and on the non-inclusion of certain active substances in Annex I to this Directive and the withdrawal of the Authorizations for plant protection products containing these active substances"
- PSM-del, EU- 2- (dithiocyanomethylthio) -benzothiazole | CH = DB | A = DB | D = DB | 8 March 2016
- "TCMTB - Hazardous Agents | Haz-Map".