M.W.

376.28

Minimum Assay

98.5%

99.00%

Absorption1% 1Cm in pH 8.0 at

(1950 - 2150)

2140

am,da max 491.00 nm

Loss on drying

7%

4.56%

Solubility

Clear brown Soln

Passes

(with green Fluorescence)

Maximum Limits of Impurities

Lead (Pb)

0.002 %

Complies

Copper (Cu)

0.01 %

Complies

Cadmium (Cd)

0.001 %

Complies

Zinc (Zn)

0.01 %

Complies

Arsenic (As)

0.0002%

Complies