Photo-labile pro-fragrance conjugates

A photo-labile pro-fragrance conjugate having the formula:

• wherein R is a unit capable of releasing a fragrance raw material having the formula:
• wherein R5 units are selected from:
• a) C6-C22 substituted or unsubstituted linear alkyl
• b) C6-C22 substituted or unsubstituted branched alkyl;
• c) C6-C22 substituted or unsubstituted linear alkenyl;
• d) C6-C22 substituted or unsubstituted branched alkenyl;
• e) C6-C22 substituted or unsubstituted cycloalkyl;
• f) C6-C22 substituted or unsubstituted branched cycloalkyl;
• g) C6-C22 substituted or unsubstituted cycloalkenyl;
• h) C6-C22 substituted or unsubstituted branched cycloalkenyl;
• i) C6-C22 substituted or unsubstituted aryl;
• j) C6-C22 substituted or unsubstituted heterocyclicalkyl;
• k) C6-C22 substituted or unsubstituted heterocyclicalkenyl;
• l) and mixtures thereof;
• R6 is selected from the group consisting of hydrogen and methyl;
• each R7 is independently hydrogen, methyl or —C(O)OR9, and mixtures thereof;
• R9 is hydrogen, C1-C12 alkyl, and mixtures thereof;
• each R1 is independently hydrogen, a unit which can substitute for hydrogen, C1-C12 substituted or unsubstituted hydrocarbyl unit;
• each R2 is independently hydrogen, C1-C12 substituted or unsubstituted hydrocarbyl unit, and mixtures thereof;
• X is —OH.