Molecular Structure of Glyphosphate-trimesium (CAS No.81591-81-3):

Molecular Formula: C₆H₁₆NO₅PS
Molecular Weight: 245.233701
IUPAC Name: 2-(Phosphonomethylamino)acetate; trimethylsulfanium
CAS No: 81591-81-3
H bond acceptors: 6
H bond donors: 4
Freely Rotating Bonds: 4
Polar Surface Area: 85.88 Å²
Flash Point: 235.5 °C
Enthalpy of Vaporization: 79.71 kJ/mol
Boiling Point: 465.8 °C at 760 mmHg
Vapour Pressure: 5.74E-10 mmHg at 25°C
InChI: InChI=1/C₃H₈NO₅P.C₃H₉S/c5-3(6)1-4-2-10(7,8)9;1-4(2)3/h4H,1-2H2,(H,5,6)(H2,7,8,9);1-3H3/q;+1/p-1
InChIKey: RUCAXVJJQQJZGU-REWHXWOFAU
Std. InChI: InChI=1S/C₃H₈NO₅P.C₃H₉S/c5-3(6)1-4-2-10(7,8)9;1-4(2)3/h4H,1-2H2,(H,5,6)(H2,7,8,9);1-3H3/q;+1/p-1
Std. InChIKey: RUCAXVJJQQJZGU-UHFFFAOYSA-M
Classification Code: Herbicide

Hazard Codes: Xn,N
Risk Statements: 22-51/53
R22:Harmful if swallowed. 
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 36/37-46-61
S36/37:Wear suitable protective clothing and gloves. 
S46:If swallowed, seek medical advice immediately and show this container or label. 
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.

   Glyphosphate-trimesium (CAS No.81591-81-3), it also can be called Glyphosate mono(trimethylsulfonium) salt ; Glyphosate trimethylsulfonium salt ; Trimethylsulfonium carboxymethylamino-methylphosphonate ; Trimethylsulfonium glyphosate .