Table 1.

Heparanase IC₅₀ values for PG545 and analogues measured using fondaparinux and ultrafiltration assays. Errors are SE.

Compound	Fondaparinux assay	Ultrafiltration assay
PG545	12.0 ± 0.7 nM	40.1 ± 6.0 nM
1	19.8 ± 1.7 nM	84.0 ± 4.5 nM
2	416 ± 25 nM	1650 ± 220 nM
3	4820 ± 230 nM	13,500 ± 4100 nM