Pioneer chemical production: Pencycuron

To be a widely used fungicide,the function of Pencycuron is very strong and it is also one of the major production of our company.

1、Name and structure
（1）Name：Pencycuron
（2）IUPAC Name：1-(4-chlorobenzyl)-1-cyclopentyl-3-phenylurea
（3）Formula: C19H21ClN2O
（4）Molecular weight：328.8
2、Physical and Chemical Properties
（1）Form:　 Colourless, odourless crystals.
（2）Melting Point:　 128 °C (modification A); 132 °C (modification B)
（3）Henry"s Constant :　 5 x 10-7 Pa m3 mol-1 (20 °C)
（4）Vapour Pressure:　　5 x 10-7 mPa (20 °C, extrapolated)
（5）Specific Denisty:　　1.22 (20 °C)
（6）Solubility:　　In water 0.3 mg/l (20 °C). In dichloromethane 270, toluene 20, n-hexane 0.12 (all in g/l, 20 °C).
（7）Stability:　　Hydrolysis DT50 64-302 d (25 °C). Photodegrades in water and on soil surfaces.
3、there are three kinds of productions in pioneer chemical Pencycuron
1．95% Pencycuron TC
Description： Off-white powder

2．250G/L Pencycuron FS
Description：Red ropy liquid

3．140G/L Imidacloprid +150G/L Pencycuron FS
Description：Red ropy liquid

form:Yangzhou pioneer chemical CO., LTD