矮壮素

Description

Chlormequat chloride · CAS 999-81-5 · C5H13ClN.Cl. UNII PPL2215L82. Melting Point: 473 °F Decomposes (EPA, 1998); Melting Point: 239 °C (decomposes); Solubility: In ethanol, 320 g/kg at 20 °C..

Identification

CAS Registry Number	999-81-5
PubChem CID	13836
Molecular formula	C5H13ClN.Cl
IUPAC name	2-chloroethyl(trimethyl)azanium chloride
UNII (FDA)	PPL2215L82

Computed Descriptors

Molecular Weight	158.07
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	1
Rotatable Bond Count	2
Exact Mass	157.0425048
Monoisotopic Mass	157.0425048
Topological Polar Surface Area	0
Heavy Atom Count	8
Formal Charge	0
Complexity	46.5

Physical & Chemical Properties

Melting Point	473 °F Decomposes (EPA, 1998)
Melting Point	239 °C (decomposes)
Solubility	In ethanol, 320 g/kg at 20 °C.
Solubility	In water, 9.96X10+5 mg/L at 20-25 °C
Density	1.14 to 1.15 g/mL at 20 °C
Vapor Pressure	7.5e-08 mmHg at 68 °F (NTP, 1992)
Vapor Pressure	0.00000008 [mmHg]
Vapor Pressure	7.5X10-8 mm Hg at 20 °C
Vapor Pressure	0.000000075 [mm Hg] @20 °C
LogP	log Kow = -3.80

Physical description & handling notes

• Chlormequat chloride appears as white crystals with a fishlike odor. Used as a plant growth regulator. Said to be effective for cereal grains, tomatoes, and peppers. (EPA, 1998)
• White solid with a fishy odor; Very hygroscopic; [Merck Index] White crystalline solid; [MSDSonline]
• COLOURLESS-TO-WHITE EXTREMELY HYGROSCOPIC CRYSTALS WITH CHARACTERISTIC ODOUR.
• White cyrstalline solid
• Colorless crystals
• TYPICAL AMINE ODOR

GHS Hazard Classification

Reported hazard statements	H302, H312, H332 (14.5%), H401, H410, H316, H320, H333

Documented Uses

• 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]
• Used to increase resistance to lodging ... and to increase yields in wheat, rye, oats, and triticale; to promote lateral branching and flowering in azaleas, fuchsias, begonias, poinsettias, geraniums, pelargoniums, and other ornamental plants; to promote flower formation and improve fruit setting in pears, almonds, vines, olives, and tomatoes; to prevent premature fruit drop in pears, apricots, and plums. Also used on cotton, vegetables, tobacco, sugar cane, mangoes, and other crops.
• Plant growth regulator for cotton, grapes, vegetables, mango, tobacco, ornamentals, and greenhouse use on azaleas, poinsettias, geraniums, and hibiscus.
• Chlormequat chloride is currently registered for use on a wide variety of ornamentals grown in greenhouses, shadehouses, and nurseries. Crops include herbaceous and woody annual and perennial plants such as begonias, vincas, azaleas, and poinsettias. Outdoor use is restricted to containerized ornamentals. Chlormequat chloride has no residential or food uses; therefore, there are no associated tolerances.
• For more Uses (Complete) data for CHLORMEQUAT CHLORIDE (7 total), please visit the HSDB record page.
• Condensation of triethylamine and ethylene dichloride

Synonyms

Chlormequat chloride; 999-81-5; Chlorocholine chloride; 2-Chloro-N,N,N-trimethylethanaminium chloride; (2-Chloroethyl)trimethylammonium chloride; Antywylegacz; Cycogan; Cyclocel; Retacel; Stabilan; Cyocel; Cycogan extra; Choline dichloride; Barleyquat; Bettaquat; Farmacel

Frequently Asked Questions

What are the CAS number and molecular formula of Chlormequat chloride?

CAS 999-81-5; molecular formula C5H13ClN.Cl; molecular weight — g/mol.

What other names is Chlormequat chloride known by?

Chlormequat chloride, 999-81-5, Chlorocholine chloride, 2-Chloro-N,N,N-trimethylethanaminium chloride, (2-Chloroethyl)trimethylammonium chloride, Antywylegacz.

Is Chlormequat chloride classified as hazardous?

Hazard statements reported: H302, H312, H332, H401, H410.

What are the key physical properties of Chlormequat chloride?

Melting Point: 473 °F Decomposes (EPA, 1998); Melting Point: 239 °C (decomposes); Solubility: In ethanol, 320 g/kg at 20 °C.; Solubility: In water, 9.96X10+5 mg/L at 20-25 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.