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ACIBENZOLAR-S-METHYL

Basic information Safety Supplier Related

ACIBENZOLAR-S-METHYL Basic information

Product Name:
ACIBENZOLAR-S-METHYL
Synonyms:
  • ACIBENZOLAR-S-METHYL STANDARD
  • acibenzolar-S-methyl benzo[1,2,3]thiadiazole-7-carbothioic acid S-methyl ester
  • Unix Bion
  • 1,2,3-Benzothiadiazole-7-carbothiolic acid, S-methyl ester
  • Acibenzolar-S-methyl [iso]
  • Actigard
  • Bendicar
  • Bion (pesticide)
CAS:
135158-54-2
MF:
C8H6N2OS2
MW:
210.28
EINECS:
420-050-0
Mol File:
135158-54-2.mol
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ACIBENZOLAR-S-METHYL Chemical Properties

Melting point:
134-135℃
Boiling point:
267°C (rough estimate)
Density 
1.450
vapor pressure 
4.4 x 10-4 Pa (25 °C)
refractive index 
1.5690 (estimate)
storage temp. 
0-6°C
solubility 
Chloroform (Slightly), Methanol (Very Slightly)
Water Solubility 
7.7 mg l-1 (25 °C)
pka
-3.90±0.50(Predicted)
color 
Off-White to Light Beige
LogP
3.100
EPA Substance Registry System
Acibenzolar-S-methyl (135158-54-2)
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Safety Information

Hazard Codes 
Xi,N
Risk Statements 
36/37/38-43-50/53
Safety Statements 
24/25-37-46-59-60-61
RIDADR 
UN 3077 9 / PGIII
WGK Germany 
3
Hazardous Substances Data
135158-54-2(Hazardous Substances Data)
Toxicity
LD50 in rats (mg/kg): >2000 orally; >2000 dermally (Ruess)
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ACIBENZOLAR-S-METHYL Usage And Synthesis

Description

Acibenzolar-S-methyl (Novartis) has attracted special attention because it acts against a very wide range of plant diseases but does not directly affect the growth or metabolism of the causal organisms. It is known to act by stimulating systemic activated resistance (SAR) in the treated plant. The well-established compound probenazole, which for some years has been the leading treatment for rice blast in Japan, is thought to act in a similar way. Pathogen resistance to probenazole has not developed, and such stability of performance may well be a general feature of SAR-inducing compounds.

Uses

Acibenzolar-S-methyl is a S-methyl thioester derivative of acibenzolar. Acibenzolar-S-Methyl acts as a fungicide in pesticidal formulations.

Uses

Plant disease resistance activator.

Uses

CGA245704 is used to control a range of diseases in wheat and it is being developed for use on rice, bananas, vegetables and tobacco.

Definition

ChEBI: A benzothiadiazole that is the S-methyl thioester derivative of acibenzolar. It is used as a fungicide and plant activator on a variety of crops, including cotton, chili peppers, lettuce, onions, spinach, tobacco, and tomatoes.

Metabolic pathway

Very little information on the fate of CGA245704 has been published. It is readily degraded in soil and plants and it is rapidly eliminated from animals. A partial metabolic pathway is shown in Scheme 1.

Degradation

CGA245704 is a stable substance and it is very stable in solution other than at high pH values. Its DT50 values (20 °C) at pH 5, 7 and 9 were 3.8 years, 23 weeks and 19 hours, respectively (PM). Hydrolysis of the thioester link and ring opening would be anticipated.

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