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Shaanxi Kaishi Biotechnology Co., Ltd
$80
1-49 Bag/Bags
$73
50-499 Bag/Bags
$70
≥500 Bag/Bags
Product Attributes
Model No.: KS-20260301
Brand: kaishibio
Product Description
Calcium-based 4-CPA (4-Chlorophenoxyacetic Acid Calcium Salt) is a widely used Plant Growth Regulator designed to promote fruit setting, reduce flower and fruit drop, and enhance crop yield consistency. As a synthetic auxin analogue, it mimics natural plant hormones to regulate cell division and elongation, particularly in fruiting crops.
This compound is extensively applied in greenhouse cultivation and open-field agriculture, especially for solanaceous crops such as tomatoes and eggplants. In modern crop management systems, Calcium 4-CPA is often integrated with Foliar Fertilizers, Growth Promoters, and other Plant Growth Regulators to optimize productivity and fruit quality.
Content Note: Prepared by our technical team based on current scientific literature. Agricultural claims comply with international regulatory guidelines. Last reviewed: April 2026
According to a study in Scientia Horticulturae (2001), 4-CPA treatments significantly improved fruit set and reduced blossom drop in greenhouse tomatoes.
A study published in Plant Physiology Reports (2015) suggests that auxin analogues like 4-CPA may enhance cell division and early fruit development in horticultural crops.
| Parameter | Specification | Test Method |
|---|---|---|
| Appearance | White to light yellow powder | Visual |
| Active Ingredient | Calcium 4-CPA ≥ 98% | HPLC |
| Chemical Name | Calcium 4-chlorophenoxyacetate | Reference Standard |
| Solubility | Water soluble | USP Method |
| pH (1% solution) | 6.0 – 7.5 | pH Meter |
| Loss on Drying | ≤ 1.0% | USP |
| Heavy Metals | < 10 ppm | ICP-MS |
| Crop | Recommended Concentration | Application Stage | Primary Benefit |
|---|---|---|---|
| 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 | Stimulates early fruit formation |
| Parameter | Calcium 4-CPA | NAA (Naphthaleneacetic Acid) | IAA (Indole-3-Acetic Acid) |
|---|---|---|---|
| Stability | High | Moderate | Low (light-sensitive) |
| Primary Use | Fruit set enhancement | Rooting and thinning | Natural growth regulation |
| Application Control | Easy to manage | Requires precision | Highly variable |
| Greenhouse Suitability | Excellent | Good | Limited |
Calcium 4-CPA is particularly valuable in controlled environments where natural pollination is limited, helping growers achieve stable yields and improved crop quality.
Buyer Insight: Calcium 4-CPA is widely selected by greenhouse growers due to its reliability in improving fruit set, especially under suboptimal pollination conditions.
It acts as a Plant Growth Regulator that promotes fruit setting and reduces flower and fruit drop.
It is commonly used in tomatoes, eggplants, peppers, cucumbers, and other greenhouse vegetables.
Typically applied as a foliar spray during flowering or early fruit development stages.
Yes, it is highly effective in greenhouse environments where pollination may be limited.
Yes, we provide OEM services including soluble powders and liquid formulations tailored to client requirements.
Packaging & Delivery
| Selling Units: | Bag/Bags |
|---|
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