Basic Information
| P-Chlorophenoxyacetic Acid 4-CPA Basic information | |
| Product Name: | 4-Chlorophenoxyacetic acid |
| CAS: | 122-88-3 |
| MF: | C8H7ClO3 |
| MW: | 186.59 |
| EINECS: | 204-581-3 |
| Mol File: | 122-88-3.mol |
| P-Chlorophenoxyacetic Acid 4-CPA Chemical Properties | |
| Melting point | 157-159 °C |
| Boiling point | 266.91°C (rough estimate) |
| density | 1.3245 (rough estimate) |
| refractive index | 1.5250 (estimate) |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | 957mg/l |
| pka | pK1: 3.10 (25°C) |
| form | crystalline |
| color | White to light beige |
| Water Solubility | 848mg/L(25 ºC) |
| BRN | 1211804 |
| CAS DataBase Reference | 122-88-3(CAS DataBase Reference) |
| NIST Chemistry Reference | 4-Chlorophenoxyacetic acid(122-88-3) |
| EPA Substance Registry System | 4-Chlorophenoxyacetic acid (122-88-3) |
Products Description of P-Chlorophenoxyacetic Acid 4-CPA
4-CPA is a phenoxy plant growth regulator with auxin activity, mainly used to prevent blossom and fruit drop, inhibit rooting of legume plants, promote fruit set, induce seedless fruit, and have the role of ripening growth.


Application of P-Chlorophenoxyacetic Acid 4-CPA
- 4-CPA acts as a plant growth regulator, it can be absorbed by plants through roots, stems, leaves, flowers and fruits.
- 4-CPA can be used to prevent flowering and fruit drop by spraying flowers, inhibit rooting in beans, promote fruit set and induce the formation of seedless fruits.
- 4-CPA can also be used for ripening and fruit thinning.
Company Profile
Henan Gneebio Co. Ltd. is a comprehensive bio-veterinary company, founded in 2016, specializing in providing a wide range of plant and animal organic chemical products. We mainly produce and deal in high quality plant growth regulators such as Gibberellin, IBA, 6-ba, CPPU, Calcium Hexadienyl, etc., and also sell Animal Growth booster, Premix and Concentrate Feed, Feed Additives and so on.



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