Dithiopyr is a preemergent herbicide for crabgrass control in turf and ornamental grasses. It is effective on 45 grassy and broadleaf weeds. Dithiopyr inhibits root growth of susceptible weeds as well as turf grass and thus should be used only on established turf with a well-developed root system. Its duration of efficacy is approximately 4 months, so lawns should not be reseeded during this time frame following application of the chemical. Dithiopyr acts primarily as a preemergent herbicide but can also be used in early postemergent control of crabgrass.

CAS：97886-45-8
中文别名：S,S′-二甲基-2-二氟甲基-4-异丁基-6-三氟甲基吡啶-3,5-二硫代甲酸酯;氟氯草定;2-二氟甲基-4-异丁基-6-三氟甲基-3,5-吡啶二硫代甲酸二甲酯;
英文别名：3,5-Pyridinedicarbothioic acid,2-(difluoromethyl)-4-(2-methylpropyl)-6-(trifluoromethyl)-,S,S-dimethyl ester;3-S,5-S-dimethyl 2-(difluoromethyl)-4-(2-methylpropyl)-6-(trifluoromethyl)pyridine-3,5-dicarbothioate;S,S-dimethyl ester-2-(difluoromethyl)-4-(2-methylpropyl)-6-(trifluoromethyl)-3,5-pyridine dicarbothioic acid;Dithiopyr;Dithiopyr [ISO];Dimension;S3,S5-dimethyl 2-(difluoromethyl)-4-(2-methylpropyl)-6-(trifluoromethyl)pyridine-3,5-dicarbothioate;S,S’-dimethyl 2-(difluoromethyl)-4-(2-methylpropyl)-6-(trifluoromethyl)-3,5-pyridinedicarbothioate;MON 7200;S,S\'-dimethyl 2-(difluoromethyl)-4-(2-methylpropyl)-6-(trifluoromethyl)-3,5-pyridinedicarbothiolate;S,S’-dimethyl 2-difluoromethyl-4-isobutyl-6-trifluoromethylpyridine-3,5-dicarbothioate;2-difluoromethyl-4-(2-methylpropyl)-6-trifluoromethyl-3,5-pyridinedicarbothioic acid,S,S-dimethyl ester;3,5-Bis(methylthiocarbonyl)-2-difluoromethyl-4-(2-methylpropyl)-6-trifluoromethylpyridine;
分子式：C15H16F5NO2S2
分子量：401.415
精确质量：401.054
Psa：97.63
Logp：5.2429

UNII：2TXF17HAV1

密度：1.332 g/cm3
沸点：460.3ºC at 760 mmHg
折射率：1.505
储存条件：0-6ºC