Molecule structure of 1-Butyl-3-methylimidazolium trifluoromethansulfonate (CAS NO.174899-66-2):

IUPAC Name: 1-Butyl-3-methylimidazol-3-ium; trifluoromethanesulfonate
Molecular Weight: 288.28721 [g/mol]
Molecular Formula: C₉H₁₅F₃N₂O₃S 
Index of Refraction: 1.434
Density: 1.292g/cm³ 
Melting Point: 16 °C
H-Bond Acceptor: 6
Rotatable Bond Count: 3
Exact Mass: 288.075548
MonoIsotopic Mass: 288.075548
Topological Polar Surface Area: 66
Heavy Atom Count: 18
Canonical SMILES: CCCCN1C=C[N+](=C1)C.C(F)(F)(F)S(=O)(=O)[O-]
InChI: InChI=1S/C8H15N2.CHF3O3S/c1-3-4-5-10-7-6-9(2)8-10;2-1(3,4)8(5,6)7/h6-8H,3-5H2,1-2H3;(H,5,6,7)/q+1;/p-1
InChIKey: FRZPYEHDSAQGAS-UHFFFAOYSA-M
Product Categories: Imidazolium Compounds; Imidazolium Salts (Ionic Liquids)  Ionic Liquids; Synthetic Organic Chemistry

Hazard Codes: Xn, Xi
Risk Statements: 36/37/38-21/22
R36/37/38:Irritating to eyes, respiratory system and skin
R21/22:Harmful in contact with skin and if swallowed.
Safety Statements: 36/37/39-26
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
RIDADR: 3265

 1-Butyl-3-methylimidazolium trifluoromethansulfonate (CAS NO.174899-66-2) is also named as 1-butyl-3-methyl-1H-imidazol-3-ium trifluoromethanesulfonate ; 1-Butyl-3-methylimidazolium Trifluoromethanesulfonate ; 1-n-Butyl-3-methylimidazolium triflate . 1-Butyl-3-methylimidazolium trifluoromethansulfonate (CAS NO.174899-66-2) is clear pale yellow to yellow liquid.