APPEARANCE (COLOR) OFF WHITE TO YELLOW TO BEIGE
APPEARANCE (FORM) POWDER
SOLUBILITY (COLOR) COLORLESS
SOLUBILITY (TURBIDITY) CLEAR TO SLIGHTLY HAZY
SOLUBILITY (METHOD) 1 MG/ML， 0.01N HCL
LOSS ON DRYING ≤ 4 %
ENZYMATIC ACTIVITY ≥ 250 U/MG
UNIT DEFINITION ONE UNIT WILL PRODUCE A DELTA- -A280 OF 0.001 PER MIN AT PH 2.0 AT 37 DEG C， MEASURED AS TCA-SOLUBLE PRODUCTS USING HEMOGLOBIN AS SUBSTRATE (FINAL VOLUME = 16ML， LIGHT PATH = 1CM)