3813-05-6 Usage
Uses
Benazolin is a selective systemic herbicide developed
in the 1960s that has growth-regulatory action in
susceptible plants. Structurally, it is a benzothiazolacetic
acid and is unrelated to the four major groups of synthetic
auxins discussed thus far. Benazolin controls a range of
annual broadleaf weeds in alfalfa (Medicago sativa), canola
(Brassica spp.), cereals, clover (Trifolium spp.), corn (Zea
mays), grassland, and flax (Linum usitatissimum), and it
has a relatively low persistence in the environment.
Definition
ChEBI: A member of the class of benzothiazoles that is 4-chloro-1,3-benzothiazol-2(3H)-one which is substituted on the nitrogen by a carboxymethyl group and at position 4 by chlorine. A post-emergence herbicide used (generally as a salt or este
) for the control of annual weeds in wheat and oilseed rape. It is not approved for use with the European Union.
Safety Profile
Moderately toxic by ingestion. Anherbicide. When heated to decomposition it emits toxicfumes of SOx, Cl-, and NOx.
Metabolism
Because benazolin is not degraded
by light and is not readily volatilized, the most important
factors affecting its persistence in the environment are
microbial breakdown and leaching. However, because
the microbial breakdown is so rapid, significant leaching
may not occur unless the rainfall within a few days of
application is large.
Toxicity evaluation
Benazolin is primarily excreted in
the urine as N-[2-chloro-6-(methylsulfinyl)phenyl]glycine
and N-[N-[2-chloro-6-(methylthio)phenyl]glycinyl]aniline.
Acid-labile conjugates of benazolin acid and N-[2-chloro-
6-(methylthio)phenylglycine] are also formed in small amounts. The acute oral LD50 for rat and mice are
>5000 mg/kg and >4000 mg/kg, respectively. See Table 21
for a list of toxicological data for benazolin.
Check Digit Verification of cas no
The CAS Registry Mumber 3813-05-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,8,1 and 3 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 3813-05:
(6*3)+(5*8)+(4*1)+(3*3)+(2*0)+(1*5)=76
76 % 10 = 6
So 3813-05-6 is a valid CAS Registry Number.
InChI:InChI=1/C9H6ClNO3S/c10-5-2-1-3-6-8(5)11(4-7(12)13)9(14)15-6/h1-3H,4H2,(H,12,13)
3813-05-6Relevant articles and documents
5,6-Dihydro-1,2,4,6-thiatriazin-5-one-1,1-dioxides
-
, (2008/06/13)
5,6-Dihydro-1,2,4,6-thiatriazin-5-one-1,1-dioxides of the formula STR1 where R1 is hydrogen, a metal atom or an unsubstituted or substituted ammonium radical, R2 is a saturated or unsaturated straight-chain aliphatic radical of up to 10 carbon atoms, a cycloaliphatic radical or 3 to 7 carbon atoms, a branched saturated or unsaturated aliphatic radical of 3 to 10 carbon atoms, a halogen-, alkoxy- or alkylmercapto-substituted aliphatic radical of 2 to 10 carbon atoms tetrahydrofuryl substituted methyl, a cycloalkoxy-substituted aliphatic radical of 4 to 10 carbon atoms, unsubstituted or halogen-substituted benzyl or phenyl, halophenyl, or alkylphenyl of a total of up to 10 carbon atoms, R3 is hydrogen, a straight-chain aliphatic radical of up to 10 carbon atoms, a cycloaliphatic radical of 3 to 7 carbon atoms, a branched aliphatic radical of 3 to 10 carbon atoms, haloalkyl, or alkoxyalkyl of 2 to 10 carbon atoms and X is oxygen and may also be sulfur if R2 is unsubstituted or halogen-substituted benzyl, processes for their preparation, and herbicides containing the above compounds.
