Specification :

1. Chemical Name: 6-amidino-2-naphthyl-4-guanidino-benzoate dimethanesulpuonate
2. CAS RN: 82956-11-4
3. Structural Formula:

4. Molecular formula & Molecular weight: C19H17N5O2 • 2( CH4O3S)  C21H25N5O8S2 539.58
5. Appearance: White to light pink crystalline powder, odorless, bitter taste, sparingly soluble in water, hardly soluble in DMF, methanol and ethanol, insoluble in acetone, ether and chloroform. Melting point: 259° C ~ 261° C.
6. Quality Standard:
 Enterprise standard.
Absorption coefficient 510-530
UV Maximum absorption at 268nm and 241nm
IR Spectrum To match with Reference Standard
pH 4.5~ 6.5
Related Substances Not more than 1.0%
Loss on drying Not more than 1.0%
Residue on Ignition Not more than 0.2%
Heavy metals Not more than 20 ppm
Chlorides Not more than 0.03%
Assay Nafamostat Mesylate contains not less than 98.5% of C21H25N5O8S2, calculated with reference to the dried substance.
7. Usage: It is used for cure acute pancreatitis, chronic pancreatitis deteriorate acutely; acute pancreatitis, traumatic pancreatitis that caused for pancreatic duct visualization and acute pancreatitis after surgery.
8. Storage: It stored in sealed containers, cool and dry place, and away from light.
9. Packing: 50g/ package.