prothioconazole

25kg Drum

Common name prothioconazole (BSI, E-ISO, (m) F-ISO)  

IUPAC name 2-[(2RS)-2-(1-chlorocyclopropyl)-3-(2-chlorophenyl)-2-hydroxypropyl]-2H-1,2,4-triazole-3(4H)-thione
Chemical Abstracts name 2-[2-(1-chlorocyclopropyl)-3-(2-chlorophenyl)-2-hydroxypropyl]-1,2-dihydro-3H-1,2,4-triazole-3-thione  

 CAS RN [178928–70–6]  

PHYSICAL CHEMISTRY
Composition Tech. is ≥97%. Mol. wt. 344.3 M.f. C₁₄H₁₅Cl₂N₃OS  Form White to light beige crystalline powder.  M.p. 139.1–144.5 °C  B.p. 487±50 °C (calc.) V.p. <<4 × 10^-4 mPa (20 °C) K_ow logP = 4.05 (unbuffered, 20 °C), 4.16 (pH 4), 3.82 (pH 7), 2.00 (pH 9) Henry <<3 × 10^-5 Pa m³ mol^-1 S.g./density 1.36 (20 °C) Solubility In water 0.005 (pH 4), 0.3 (pH 8), 2.0 (pH 9), (all in g/l, 20 °C). In n-heptane <0.1, xylene 8, n-octanol 58, isopropanol 87, acetonitrile 69, DMSO 126, dichloromethane 88, ethyl acetate, polyethylene glycol and acetone all >250 (all in g/l, 20 °C). Stability Stable at ambient temperature. Stable to hydrolysis at pH 4–9. Rapidly photodegraded to prothioconazole-desthio in water. pKa 6.9