Acibenzolar- S- methyl

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Structural formula
Structure of acibenzolar-S-methyl
General
Surname Acibenzolar- S- methyl
other names
  • BTH
  • S -methyl 1,2,3-benzothiadiazole-7-carbothioate
  • Benzene [1,2,3] thiadiazole-7-carbothioate- S- methyl
Molecular formula C 8 H 6 N 2 OS 2
Brief description

white-beige powder

External identifiers / databases
CAS number 135158-54-2
EC number 420-050-0
ECHA InfoCard 100.101.876
PubChem 86412
Wikidata Q341312
properties
Molar mass 210.28 g mol −1
Physical state

firmly

Melting point

133 ° C

boiling point

267 ° C

solubility

practically insoluble in water (7.7 mg l −1 at 25 ° C)

safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary
07 - Warning 09 - Dangerous for the environment

Caution

H and P phrases H: 319-335-315-317-410
P: 261-273-280-305 + 351 + 338-501
Toxicological data

> 2000 mg kg −1 ( LD 50ratoral )

As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Acibenzolar- S -methyl (abbreviation BTH ) is a chemical compound that is used as a fungicide . BTH is derived from Acibenzolar . The active ingredient intervenes in the salicylic acid synthesis and thus triggers a systemically activated resistance.

It is considered safe for consumers and is already used against bacterial diseases in tomatoes. In the case of grapes, experiments have shown that grapes treated with BTH contain more anthocyanins (suspected antioxidant effect) than untreated ones.

According to the maximum residue amount regulation of the Federal Ministry for Consumer Protection , only 0.02 mg / kg of BTH may be present in eggs, meat and dairy products.

history

Acibenzolar- S- methyl was introduced in 1996 by Ciba-Geigy (now Syngenta ).

Admission

Plant protection products with this active ingredient are approved in Switzerland, but not in Germany or Austria.

Individual evidence

  1. a b c d Entry on Acibenzolar-S-methyl. In: Römpp Online . Georg Thieme Verlag, accessed on March 19, 2014.
  2. a b c Entry on Acibenzolar-S-Methyl in the ChemIDplus database of the United States National Library of Medicine (NLM), accessed on December 15, 2016.
  3. Entry on Acibenzolar-S-methyl in the GESTIS substance database of the IFA , accessed on December 15, 2016 (JavaScript required)
  4. entry on Acibenzolar-S-methyl; Benzo [1,2,3] thiadiazole-7-thiocarboxylic acid S-methyl ester in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on December 15, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
  5. Acibenzolar-S-methyl data sheet from Sigma-Aldrich , accessed on May 22, 2017 ( PDF ).
  6. Federal Ministry of Consumer Protection: Maximum Residue Quantity Ordinance .
  7. General Directorate Health and Food Safety of the European Commission: Entry on Acibenzolar-S-methyl (benzothiadiazole) in the EU pesticide database ; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on March 12, 2016.