Ametryn

Common name ametryn (BSI (since 1984), E-ISO, ANSI, WSSA, JMAF); ametryne (BSI (before 1984), (f) F-ISO)

IUPAC name N2-ethyl-N4-isopropyl-6-methylthio-1,3,5-triazine-2,4-diamine 

Chemical Abstracts name N-ethyl-N'-(1-methylethyl)-6-(methylthio)-1,3,5-triazine-2,4-diamine 

CAS RN [834-12-8] 

Composition 96% pure. 

Mol. wt. 227.3 

M.f. C9H17N5S 

Form White powder. 

M.p. 86.3-87.0 篊 

B.p. 337 癈/98.6 kPa 

V.p. 0.365 mPa (25 篊) (OECD 104) 

KOW logP = 2.63 (25 篊) 

Henry 4.1 ´ 10-4 Pa m3 mol-1 (calc.) 

S.g./density 1.18 (22 篊) 

Solubility In water 200 mg/l (20 篊). In acetone 610, methanol 510, toluene 470, n-octanol 220, hexane 12 (all in g/l, 25 篊). 

Mode of action

Selective systemic herbicide, absorbed by the leaves and roots, with translocation acropetally in the xylem, and accumulation in the apical meristems. 

Uses Pre- and post-emergence control of most annual grasses and broad-leaved weeds