Patent ID: 8546351

Claim:
A formulation comprising a compound of formula I having R1-R6 as I R 1 R 2 R 3 R 4 R 5 R 6 —SO 3 H H —SO 3 H —SO 3 H H H H —SO 3 H —SO 3 H —SO 3 H H H H H —SO 3 H —SO 3 H H —SO 3 H —SO 3 H H —SO 3 H —SO 3 H —SO 3 H H —SO 3 H H —SO 3 H —SO 3 H H —SO 3 H H H —SO 3 H —SO 3 H —SO 3 H —SO 3 H —SO 3 H H —SO 3 H —SO 3 H —SO 3 H —SO 3 H —SO 3 H —SO 3 H —SO 3 H —SO 3 H H H H —SO 3 H —SO 3 H —SO 3 H —SO 3 H H H —SO 3 H —SO 3 H —SO 3 H H —SO 3 H —SO 3 H —SO 3 H —SO 3 H —SO 3 H —SO 3 H H —SO 3 H —SO 3 H —SO 3 H —SO 3 H H —SO 3 H H —SO 3 H —SO 3 H —SO 3 H —SO 3 H —SO 3 H —SO 3 H —SO 3 H —SO 3 H —SO 3 H —SO 3 H —SO 3 H and pharmaceutically acceptable salts thereof and a delivery agent selected from a hydrophilic polymer.