Fluorocompound, silver halide photographic light-sensitive material, surfactant, and water-based coating composition empolying same

A surfactant comprising a fluorocompound denoted by general formula (1) below:

• Formula (1)
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• wherein R1 denotes a substituted or unsubstituted alkyl group having a total of at least six carbon atoms, with R1 not being an alkyl group substituted with a fluorine atom;
• Rf denotes a perfluoroalkyl group having not more than six carbon atoms;
• either X1 or X2 denotes a hydrogen atom and the other denotes SO3M;
• M denotes a cation;
• and n denotes an integer of not less than 1.

A water-based coating composition comprising a fluorocompound denoted by general formula (1) below:

• Formula (1)
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• wherein R1 denotes a substituted or unsubstituted alkyl group having a total of at least six carbon atoms, with R1 not being an alkyl group substituted with a fluorine atom;
• Rf denotes a perfluoroalkyl group having not more than six carbon atoms;
• either X1 or X2 denotes a hydrogen atom and the other denotes SO3M;
• M denotes a cation;
• and n denotes an integer of not less than 1.