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Shaanxi Kaishi Biotechnology Co., Ltd
$80
1-49 Bag/Bags
$75
50-499 Bag/Bags
$70
≥500 Bag/Bags
Product Attributes
Model No.: KS-20260301
Brand: kaishibio
Product Description
4-Chlorophenoxyacetic Acid (4-CPA) Powder is a synthetic Plant Growth Regulator belonging to the phenoxyacetic acid class, widely used in modern agriculture to enhance fruit set, reduce flower and fruit drop, and regulate plant reproductive development.
It is commonly applied in high-value horticultural and greenhouse crops, particularly tomatoes, peppers, and eggplants. In advanced crop management systems, 4-CPA is often formulated with Foliar Fertilizers, Growth Promoters, and Plant Extracts to improve yield consistency and fruit quality.
Content Note: Prepared by our technical team based on current agronomic literature. Agricultural claims comply with international regulatory guidelines. Last reviewed: April 2026
According to a study in Scientia Horticulturae (2001), 4-CPA application significantly improved fruit set and reduced blossom drop in greenhouse tomato cultivation.
A study published in Plant Growth Regulation (2010) suggests that auxin analogues like 4-CPA play a key role in regulating reproductive development and improving yield stability in horticultural crops.
| Parameter | Specification | Test Method |
|---|---|---|
| Appearance | White to light yellow crystalline powder | Visual |
| Active Ingredient | 4-Chlorophenoxyacetic Acid ≥ 98% | HPLC |
| Chemical Class | Phenoxyacetic acid derivative (auxin analogue) | Reference standard |
| Solubility | Soluble in organic solvents, slightly water soluble | USP method |
| Melting Point | ~155–158°C | DSC |
| Loss on Drying | ≤ 1.0% | USP |
| Heavy Metals | < 10 ppm | ICP-MS |
| Crop Type | Recommended Concentration | Application Stage | Primary Effect |
|---|---|---|---|
| Tomato | 10–30 ppm | Flowering stage | Improves fruit set, reduces blossom drop |
| Eggplant | 15–40 ppm | Early flowering | Enhances fruit development |
| Pepper | 10–25 ppm | Bud to flowering stage | Promotes uniform fruiting |
| Cucumber | 5–20 ppm | Pre-flowering stage | Stimulates early fruit formation |
| Compound | Function | Stability | Crop Focus |
|---|---|---|---|
| 4-Chlorophenoxyacetic Acid (4-CPA) | Fruit set regulator | High | Vegetables, greenhouse crops |
| NAA (Naphthaleneacetic Acid) | Rooting & thinning | High | Fruit trees, cuttings |
| IAA (Indole-3-Acetic Acid) | Natural auxin | Low | General plant growth |
4-CPA Powder is widely used in controlled cultivation systems where consistent fruit set and yield uniformity are essential for commercial production efficiency.
Buyer Insight: 4-CPA is highly valued in greenhouse agriculture due to its strong and predictable effect on fruit set regulation under low pollination environments.
It is used as a Plant Growth Regulator to improve fruit set and reduce flower drop in horticultural crops.
It is commonly used in tomatoes, peppers, eggplants, cucumbers, and other greenhouse vegetables.
It is applied as a foliar spray during flowering or early fruit development stages.
When used at recommended concentrations, it provides consistent results with controlled plant response.
Yes, we provide full OEM services including formulation, packaging, and regulatory documentation support.
Packaging & Delivery
| Selling Units: | Bag/Bags |
|---|
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