Atrazine

Description

Atrazine · CAS 1912-24-9 · C8H14ClN5. UNII QJA9M5H4IM. Boiling Point: 205 °C/101 kPa; Melting Point: 347 to 351 °F (NTP, 1992); Melting Point: 177.0 °C.

Identification

CAS Registry Number	1912-24-9
PubChem CID	2256
Molecular formula	C8H14ClN5
IUPAC name	6-chloro-4-N-ethyl-2-N-propan-2-yl-1,3,5-triazine-2,4-diamine
UNII (FDA)	QJA9M5H4IM

Computed Descriptors

Molecular Weight	215.68
XLogP3	2.6
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	5
Rotatable Bond Count	4
Exact Mass	215.0937732
Monoisotopic Mass	215.0937732
Topological Polar Surface Area	62.7
Heavy Atom Count	14
Formal Charge	0

Physical & Chemical Properties

Boiling Point	205 °C/101 kPa
Melting Point	347 to 351 °F (NTP, 1992)
Melting Point	177.0 °C
Melting Point	173 °C
Melting Point	173-177 °C
Melting Point	340 °F
Solubility	In water, 33.0 mg/L at 25 °C
Solubility	In water, 34.7 mg/L at 26 °C
Solubility	0.0347 mg/mL at 26 °C
Solubility	0.003%

Physical description & handling notes

• Atrazine is a white crystalline solid. Melting point 173-175 °C. Sinks in water. A selective herbicide used for season-long weed control in a variety of crops.
• Colorless or white, odorless, crystalline powder. [herbicide]; [NIOSH]
• Solid
• COLOURLESS CRYSTALS.
• Colorless or white, odorless, crystalline powder.
• Colorless or white, odorless, crystalline powder. [herbicide]

GHS Hazard Classification

Reported hazard statements	H317, H373, H400, H410, H319 (19.4%), H302, H320, H361

Documented Uses

• Herbicide, plant growth regulator, and weed-control agent for corn, etc., and for noncrop and industrial sites.
• Pre- and post-emergence control of annual broad-leaved weeds and annual grasses in maize, sorghum, sugar cane, pineapples, chemical fallow, grassland, macadamia nuts, conifers, industrial weed control. In Europe, use is concentrated in maize and sorghum. Used also in combinations with many other herbicides.
• Information on 18 consumer products that contain Atrazine in the following categories is provided:
• Atrazine is produced by reaction of cyanuric chloride with one equivalent of ethylamine, followed by treatment with one equivalent of isopropylamine.
• Preparation: Gysin, Knusli, Switzerland patents 342784, 342785 (both 1960 to Geigy) ... ; ... Andriska et al., Hungary patent 149189 (1962 to Nehezvegyipari Kutato Intezet ... ; Mildner, France patent 1317812 (1963 to Radonja Kemijska Ind.) ... .
• REACTION OF 2,6-DICHLORO-4-ETHYLAMINO-S-TRIAZINE WITH ISOPROPYLAMINE

Synonyms

atrazine; 1912-24-9; Gesaprim; Aatrex; Atranex; Atrazin; Oleogesaprim; Atazinax; Atrasine; Chromozin; Gesoprim; Hungazin; Primatol; Strazine; Aktikon; Argezin

Frequently Asked Questions

What are the CAS number and molecular formula of Atrazine?

CAS 1912-24-9; molecular formula C8H14ClN5; molecular weight — g/mol.

What other names is Atrazine known by?

atrazine, 1912-24-9, Gesaprim, Aatrex, Atranex, Atrazin.

Is Atrazine classified as hazardous?

Hazard statements reported: H317, H373, H400, H410, H319.

What are the key physical properties of Atrazine?

Boiling Point: 205 °C/101 kPa; Melting Point: 347 to 351 °F (NTP, 1992); Melting Point: 177.0 °C; Melting Point: 173 °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.