Product name

Plant Hormones 4-CPA

Chemical name

2-(4-Chloro-phenoxy) acetic acid; 4-Chlorophenoxyacetic acid

CAS No.

122-88-3

Classification

plant growth regulator / Plant Hormone

Formulation

98%TC

Physical and

chemical

properties

1.Appearance: White powder

2.Molecular Formula: C8H7ClO3

3.Molecular Weight: 186.59

4.Melting Point: 157-159°C

5.Residue on ignition: below 0.1%

Toxicity

Acute oral LD50 for rats 2200mg/kg;

Acute dermal LD50 for rats>2200mg/kg;

Irritation to skin and eyes. LC50 for fish: carp 3-6ppm,

locah (48hr) 2.5ppm, water flea>40ppm.

Application

Used as plant growth regulator, 4-CPA is absorbed by plant via root, stem, leaf, bloom and fruit.

1. It is used to prevent abscission of bloom and fruit, inhibit rooting of beans,promote fruit set, induce formation of seedless fruit. It is also used for ripening and fruit thinning.

2.It performs better when used in combination with 0.1% monopotassiumphosphate. It also has herbicidal effect at high dosage.

3.It can increase the percentage of the fruit bearing(increase output) and promote the enlargement of fruit

Application

Broad-spectrum

Tomato:

When blossom for 2-3 flowers, soak flowers in 10-20ppm.

Do this three times, every 7-10d.

Pumpkin Watermelon / Cucumber, etc.(melon group):  

Soak or spray the flower in 20-25ppm.

Pepper: 10-15ppm.

Purple orange litchi Apple Longan:

In florescence 25-30 ppm.

Package

1kg/bag, 25kg/drum