Carbendazim

Carbendazim Fungicide benzimidazole Features: 1) Common name: carbendazim 2) Structure formula: border=0> 3) Chemical name: methyl-benzimidazol-2-ylcarbamate 4) Molecular formula: C9H9N3O2 5) Molecular weight: l91.2 6) CAS no.: 10605-21-7 Physical-chemical properties: 1) Appearance: white crystalline powder 2) M.p.: 302 - 307oC (decomp.) 3) V.p.: 0.09mPa (20oC) 4) KOW: logP=1.38 (pH5), 1.51 (pH7), 1.49 (pH9) 5) S.g./density: 1.45 (20oC) 6) Solubility: a) In water at 24oC, 29 mg/L (pH4), 8mg/L (pH7) b) In dimethylformamide 5, acetone 0.3, ethanol 0.3, chloroform 0.1, ethyl acetate 0.135, dichloromethane 0.068, benzene 0.036, cyclohexane <0.01, diethyl ether <0.01, hexane 0.0005 (all in g/L, 24oC) 7) Stability: a) Decomposes at m.p.; stable for at least 2y below 50oC b) Slowly decomposes in alkaline solution (22oC) c) Stable in acids, forming water-soluble salts Technical specifications: 1) Appearance: white powder 2) a.i.content: >=98% 3) Water: <=0.25% 4) O-PDA: <=0.2% 5) Acidity (H2SO4): <=0.2% Formulation: 50WP Analysis: LC (GB 10501-89) Packaging: 25kg/plastic woven bag or cardboard drum lined with plastic bag Applications: 1) Action: systemic fungicide with protective and curative actions 2) Uses: control of a wide range of diseases on cereals, fruits, grape, oilseed rape, sugar beet, ornamentals and vegetables. Application rates vary from 120 - 600g/ha depending on crop. A seed treatment (0.6 - 0.8g/kg) will control Tilletia, Ustilago, Fusarium and Septoria in cereals and Rhizoctonia in cotton. Also shows activity against storage diseases of fruit as a dip (0.3 - 0.5g/L). In addition, it can be used as a mildew-proofing agent in textiles, papermaking, leather and paint. Toxicology: 1) Oral: acute oral LD50 for rats >15 000, dogs >2500mg/kg 2) Skin and eyes: acute percutaneous LD2 for rabbits >10000, rats >2000mg/kg 3) Non-irritating to skin and eyes (rabbits). Not a skin sensitiser (guinea pigs) 4) Birds: acute oral LD50 for quails 5826 - 15595mg/kg 5) Fish: LC50 (96h) for carp 0.61, rainbow trout 0.83mg/L 6) Bees LD50 (contact) >50ug/bee 7) Daphnia: LD50 (48h) 0.13 - 0.22mg/L Payment Term: L/C at sight Price Term: FOB Shanghai