Table 2: Physicochemical properties of HSA-STF.

TestsHSA-STF

ColorHelveolous
Protein qualitative testNegative
Sterile testNegative
Safety testNegative*
Pyrogen testNegative*
pH7.0 ± 0.4
/ 1.96 ± 0.23
Maximum absorbance258 ± 6
Concentration of polypeptide (mg/mL)2.34 ± 0.31
Concentration of ribose (mg/mL)0.717 ± 0.043

It qualifies as per Chinese Pharmacopoeia.