1. Chemical and Physical Properties:
Chemical name: 4-chlorophenoxyacetic acid;
other names: p-chlorophenoxyacetic acid;
Abbreviations: 4-CPA, P-CPA,
CAS Number: 122-88-3
Chemical formula: C₈H₇ClO₃
Molar mass: 186.59 g·mol−1
2. Specifications: 98% TC. ; 98% Sodium slat (full water soluble);
3. Dosage and usage guidelines:
(1). Prevention of Flower and Fruit Drop:
(2). Enhancing storage tolerance:
On sunny afternoons, 3-10 days before the harvest of Chinese cabbage, spray a solution of 40-100 ppm from the base of the cabbage from bottom to top, with the leaves moist and the solution not dripping down, which can reduce the defoliation during the storage period of Chinese cabbage.
3. Notice:
(1) : Discontinue use 3 days before vegetable harvest. Using this agent is safer than using 2,4 -D. Small spray should be used to spray flowers (such as medical throat spray), and spray on twigs and buds should be avoided. Strictly control the dosage, concentration, and duration of medication to prevent drug damage.
(2) :Avoid spraying on sunny and sunshine time of day, to prevent damage plant.
(3): Do not use on vegetables for reserve seeds.