Overview
Mepiquat chloride (CAS 24307-26-4 ), also known commercially as BAS-083, is a plant growth regulator used primarily in cotton production to control excessive vegetative growth. By inhibiting gibberellin biosynthesis, it compacts plant architecture.
This chemical redirects energy toward boll development rather than canopy expansion. In cotton cultivation, it is applied as a foliar treatment to shorten internode length, reduce lodging risk, and improve harvestability.
This is particularly effective in high-yield, irrigated production systems. It is also used in wheat and barley to reduce stem elongation and prevent lodging under high-nitrogen fertility programs for modern agriculture.
Formulators incorporate it as the active ingredient in liquid suspension concentrates and soluble concentrate formulations for commercial herbicide and PGR products. Some programs combine it with cyclanilide or other actives.
These combinations broaden its agronomic effect on cotton maturity and fiber quality. The material is supplied as a technical-grade solid or as pre-formulated aqueous concentrates for various industrial applications.
Active ingredient concentrations typically range from 37% to 42% in commercial liquid products. Technical material is available for formulators requiring custom concentration or combination products for specific needs.
Supply is offered in bulk drums and intermediate bulk containers suited to agrochemical manufacturing volumes. This ensures efficient distribution and handling for large-scale agricultural chemical production facilities.
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Physical Properties
| Melting Point | 223 °C |
| Boiling Point | 106 °C |
| Density | 0.9989 (rough estimate) |
| Appearance | White crystalline solid, off-white powder, or pinkish liquid. Slightly sweet, musty odor; |
| Color | Light Brown |
| Odor | Slightly sweet, musty smell |
| Form | neat |
| Refractive Index | 1.5760 (estimate) |
Safety & Handling
Danger GHS06 GHS07 Hazard Statements H301 Toxic if swallowed H302 Harmful if swallowed H332 Harmful if inhaled H412 Harmful to aquatic life with long lasting effects Precautionary Statements P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment. P317 Get emergency medical help. P321 Specific treatment (see … on this label). P330 Rinse mouth. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P301+P316 Get emergency medical help immediately. P301+P317 Get emergency medical help. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
Trade & Regulatory
| HS Code | 29333990 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 2 |
Other Names
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Chemical Properties
- CAS Number
- 24307-26-4
- EC Number
- 246-147-6
- Mol. Weight
- 149.66
- HS Code
- 29333990
- Category
- Agrochemicals