C - Chemistry – Metallurgy – 12 – F
Patent
C - Chemistry, Metallurgy
12
F
260/552.4
C12F 5/00 (2006.01) A61K 31/165 (2006.01) A61K 47/00 (2006.01) C07C 29/94 (2006.01) C07C 31/08 (2006.01) C07C 63/08 (2006.01)
Patent
CA 1196928
A B S T R A C T Title: QUATERNARY AMMONIUM SALT. The invention provides novel lignocaine benzyl benzoate hydrate which may be prepared by agitating a solution of lignocaine benzyl benzoate in water at a concentration of at least 5% w/w and at a temperature of 10 to 35°C. Anhydrous lignocaine benzyl benzoate may be prepared by heating the hydrate. The resulting anhydrous benzyl benzoate or the hydrate itself may be used, for example in the form of an aqueous solution, to denature organic substances such as ethyl alcohol.
401971
Grew Edward L.
Wilson Nigel D.v.
Glaxo Group Limited
Riches Mckenzie & Herbert Llp
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