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Chemical name: 1,2-di(3-methoxycarbonyl-2-thioureido)benzene
C A S Number: 23564-05-8
Molecule Formula: C12H14N4O4S2
Molecule weight: 342.38
PROPERTIES: Pure Topsin is white crystal powder, the technical grade is slightly yellow crystal powder, density 1.5(20°C), melting point 112°C(dissolved under 117-118°C), vapors pressure: 7.12×10-8mmHg(25°C) Insoluble in water, soluble in acetone, methyl alcohol, chloroform. It's not stable with acid and alkali.
Quality standard:1.Technical grade
Items | Appearance | Content w/w |
Water w/w |
Acidity (calculated as H2SO4) w/w |
Insoluble in acetone w/w |
---|---|---|---|---|---|
Tech | white crystal powder | 97%min | 1.0%max | 0.5%max | 0.5%max |
Items | Appearance | Content, w/w |
---|---|---|
50% WP | Off-white powder | 50%min |
70% WP | 70%min |
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