The 1-Butyl-3-methylimidazolium methanesulfonate, with the CAS registry number 342789-81-5, is also known as 1-n-Butyl-3-methylimidazolium methanesulfonate. This chemical's molecular formula is C₉H₁₈N₂O₃S and molecular weight is 234.32. What's more, its systematic name is called 1-Butyl-3-methyl-1H-imidazol-3-ium methanesulfonate.

Physical properties about 1-Butyl-3-methylimidazolium methanesulfonate are: (1)H bond acceptors: 5; (2)#H bond donors: 1; (3)#Freely Rotating Bonds: 3; (4)Polar Surface Area: 74.39 Å²; (5)Flash Point: 119 °C; (6)Melting Point: 75-80 °C

When you are dealing with this chemical, you should be very careful. This chemical may destroy living tissue on contact and it is harmful if swallowed. It is harmful to aquatic organisms and may cause long-term adverse effects in the aquatic environment. What's more, it could cause burns. Therefore, you should wear suitable protective clothing, gloves and eye/face protection. In case of contacting with eyes, you should rinse immediately with plenty of water. You should avoid releasing to the environment. And in case of other accidents or if you feel unwell seek medical advice immediately.

You can still convert the following datas into molecular structure:
(1) SMILES: [O-]S(=O)(=O)C.c1c[n+](cn1CCCC)C
(2) InChI: InChI=1/C8H15N2.CH4O3S/c1-3-4-5-10-7-6-9(2)8-10;1-5(2,3)4/h6-8H,3-5H2,1-2H3;1H3,(H,2,3,4)/q+1;/p-1
(3) InChIKey: PUHVBRXUKOGSBC-REWHXWOFAQ