C26H27ClNO6PS2-
Exact Mass: 547.10
Mol. Wt.: 547.99
m/e: 547.10 (100.0%), 549.10 (33.5%), 548.10 (30.7%), 550.10 (10.8%), 549.09 (4.4%), 549.11 (4.2%), 551.10 (2.0%), 551.09 (1.4%)
C, 56.99; H, 4.97; Cl, 6.47; N, 2.56; O, 17.52; P, 5.65; S, 5.85