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Tricyclazole

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(CAS#: 41814-78-2)

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Chemical & Physical Properties

-Chemical name : 5-methyl-1,2,4-triazolo [3,4-b] [1,3] benzothiazole
-Molecular weight : 189.2
-Appearance : Pale yellow or reddish crystalline solid
-Melting point : 187-188 degree C
-Vapor Pressure : 0.027mPa(25 degree)
-Purity : 95% up
-Solubility(25 degree, g/l) : In water 1.6, acetone 10.4, methanol 25,
.............................. xylene 2.1,chloroform>500
-Stability : Stable at 54 degree (Storage temperature tested). Relatively stable to
.............. U.V.light. Hydrolyzed in strong alkali solution.

Synonyms:

1,2,4-Triazolo[3,4-b]benzothiazole, 5-methyl- Beam

5-Methyl-1,2,4-triazolo[3,4-b]-benzothiazole

Biological Properties

Tricyclazole is systemic, highly protective effect and long residual activity.
It inhibits appressorial penetration probably due to the lack of melanization in appressoria.

Toxicity

-Acute oral LD50 : Mouse 514(431~27)mg/kg
-Acute percutaneous LD50
-Inhalation LC50(1h): Rat > 2,000mg/kg
-Fish toxicity LC50(48h): Mouse > 0.146mg/l air
-Bird toxicity LD50: > 5ppm
-NOEL(2y): Bobwhite quail > 100mg/kg
-Toxicity class : Rat 275mg/kg, Mice 400mg/kg

Formulation

-Tricyclazole Wettable Powder : Containing 20%, 75% A.I.
-Tricyclazole Supension Concentrate: Containing 41.7% A.I.
-Tricyclazole Granula : Containing 4% A.I.
-Tricyclazole Mixture : Containing iprobenfos, imidacloprid, etc.

Application

Crop Target Disease(Treatment) Range of application rates
g A.I./20 l kg A.I./ha volume(l)/ha
Rice Leaf balst(ULV)
Leaf blast(foliar)
Leaf blast(seedling flat)
Neck & Panicle last(foliar)
Neck & Panicle blast(ULV)
167
7.5
60

7.5

250
0.25
0.4~0.5 1.5(g)/flat

0.7~0.8

0.38
30
800~1,000
0.5/flat

1400~1600

30