Name: 3-S-Isothiuronium propyl sulfonate
Synonyms: 3-[(Aminoiminomethyl)thio]-1-propanesulfonic acid

Identification:
     Molecular formula:     C4H10N2O3S2
      Molecular weight:     198.2
           CAS  Number:     21668-81-5
                EINECS:     244-520-8
            Appearance:     White powder
Concentration in baths:     0.01-0.1g/L
           Consumption:     0.5-1g/KAH
 
Applications:
1. UPS serves as the grain refiner at HCD area for acid copper baths.
2. It performs well in leveling and fast brightening at high and middle current density area. UPS helps ameliorate the stability of  baths and elevates the current efficiency.
3. It is always used in combination with Poly alcohol or non-ionic surface active agent to supply deposit which has perfect  brightening and ductility features. It can also be added into other acid plating baths, such as acid silver or palladium plating.
 
Package and Storage:
Package: 1000g plastic sealing bag, 25kg carton
Storage: Non-dangerous articles, be stored at cool and dry place