Chlormequat chloride

Agent Name
Chlormequat chloride
CAS Number
Major Category
Chlormequat chloride formula graphical representation
(2-Chloroethyl)trimethylammonium chloride; (2-Chloroethyl)trimethylchloride ammonium; (beta-Chloroethyl)trimethylammonium chloride; 2-Chloraethyl-trimethylammoniumchlorid [German]; 2-Chloro-N,N,N-trimethylethanaminium chloride; 5C Cycocel; 60-CS-16; AC 38555; Ammonium, (2-chloroethyl)trimethyl-, chloride; Antywylegacz; Arotex Extra; Barleyquat; Barleyquat B; Bercema CCC; Bettaquat; CCC; CCC (plant growth regulant); Chlorcholinchlorid [Czech]; Chlorcholine chloride; Chlormequat; Chlormequat chloride [ISO]; Chlorocholine chloride; Choline dichloride; Cyclocel; Cycocel; Cycocel 460; Cycocel C 5; Cycocel Extra; Cycocel-extra; Cycogan; Cycogan extra; Cyocel; EI 38,555; Ethanaminium, 2-chloro-N,N,N-trimethyl-, chloride; Farmacel; Halloween; Helstone; Hico CCC; Hormocel-2CCC; Hyquat; Increcel; Lihocin; Mirbel 5; Premix; Retacel; Stabilan; TUR; Titan; Trimethyl-beta-chlorethylammoniumchlorid [Czech]; Trimethyl-beta-chloroethylammonium chloride; WR 62; Zar; [ChemIDplus] UN2811
Plant Growth Regulators
White solid with a fishy odor; Very hygroscopic; [Merck Index] White crystalline solid; [MSDSonline]
Used as plant growth regulator; [Merck Index] Works by inhibiting the biosynthesis of a plant hormone; Registered for use on ornamental plants grown in greenhouses and nurseries; May be used outside in containerized ornamentals; [Reference #1]
A mild eye irritant; Can be absorbed through skin; "The substance may cause effects on the nervous system: cholinergic symptoms without acetylcholinesterase inhibition." [ICSC] An irritant; Can be absorbed through skin; Effects in high-dose animal studies include convulsions; [MSDSonline] Toxic to hamster embryos; No human data; [REPROTOX]
Reference Link #1
Biomedical References

Exposure Assessment

Vapor Pressure
7.5E-08 mm Hg
Lethal Concentration
LC50 (rat) > 5,200 mg/m3/4h
Explanatory Notes
The Guide in the Emergency Response Guidebook is for "Toxic solid, organic, n.o.s."

Adverse Effects

Other CNS neurotoxin

Diseases, Processes, and Activities Linked to This Agent


Industrial Processes with risk of exposure: