Patent ID: 9631096
Date: 2017-04-25
CPC Classifications: C09B,C09K

Claim:
1. A dye compound of the formula: wherein: R A is a cyclic polyene group containing more than three conjugated carbon-carbon double bonds and has a characteristic of modifying the singlet-triplet occupancy of the shown cyanine moiety, wherein A is optionally substituted with at least one hydrophilic group; M is a reactive crosslinking group or a group that can be converted to a reactive crosslinking group; n is an integer of at least 1 and up to 6; m is 0 or an integer of 1 to 6; p is 0 or an integer of 1 to 6; q is an integer of at least 1 and up to 16; and r is an integer of 1 to 4; any two adjacent groups selected from R any CH the ring carbon atom bound to R