Heparin derived dp4 saccharide ammonium

[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].OC1OC (COS (=O) (=O) [O-]) C (OC2OC (C (OC3OC (COS (=O) (=O) [O-]) C (OC4OC (=CC (O) C4OS (=O) (=O) [O-]) C (=O) [O-]) C (O) C3NS (=O) (=O) [O-]) C (O) C2OS (=O) (=O) [O-]) C (=O) [O-]) C (O) C1NS (=O) (=O) [O-]