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'''Thidiazuron'''
Structural formula and molecular model
Formula of thidiazuron
Formula of thidiazuron
general
Molecular formula 
     ( explanation )	{{chem|C|9|H|8|N|4|OS}}
IUPAC name	1-phenyl-3- (1,2,3-
thiadiazol-5-yl) urea
other names	TDZ
molecular weight	220.25102 g / mol
SMILES	
C1 = CC = C (C = C1) NC (NC2 = CN = NS2) = O
inchi	
1 / C9H8N4OS / C14
9 (12-8-6-10-13-15-8) 11- 7-4-2-1-3-5-7 / h1-6H, (H2,
11,12,14) / f / h11-12H
CAS	51707-55-2
EC number	257-356-7
PubChem	40087
Warnings and Cautions
harmful
Warning
H-phrases	H312 - H315 - H319 - H332 - H335
EUH phrases	no
P-phrases	P261 - P280 - P305 + P351 + P338
LD 50 (rats)	( Oral ) 5350 mg / kg
Physical characteristics
Appearance	fixed
Color	colorless
Density	1.51 g / cm³
Melting point	211.5 ° C
Solubility in water	(At 20 ° C) 0.2 g / l
Slightly soluble in	water
Wherever possible, SI units used. Unless indicated otherwise, standard conditions used (298.15  K , or 25 ° C , 1 bar ).
Portal  portal Icon  	Chemistry
Thidiazuron ( ISO name ) is a phenyl - urea derivative . It is a biologically active substance used as a plant growth regulator , more specifically as a defoliant in the cultivation of cotton or fruit.

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