Patent ID: 7259273

Claim:
A compound of the following formula Q—SO 2 —W or a salt thereof, wherein, W is SH, OH, OCH 2 CH(NH 2 )CO 2 H, OCHCH 3 CH(NH 2 )CO 2 H, OPO 3 H 2 , or OP(O)(OH)—O—PO 3 H 2 , and Q is of the following structures: wherein, Y is O or S; R is substituted or unsubstituted, saturated or unsaturated, straight or branched-chain alkyl having from about 5 to 30 carbons, or ((CH 2 ) p O) q (CH 2 ) p T where q is an integer from 1 to 900 and where each p is independently an integer from 2 to 10 and T is OH, or O(CH 2 ) b CH 3 where b is an integer from 0 to 10; V is independently OH, SH, H, NH 2 , halogen, OPO 3 H 2 , or OSO 3 H; n is an integer from 0 to 10; m is an integer from 0 to 10; Z is OH, SH, NH 2 , OPO 3 H 2 , halogen, H, O(CH 2 ) b CH 3 where b=0 to 2, or SO 3 H; L is independently O or SOR CH 2 ; and, X is independently O or S.