Appearance

White to pale white Flakes or Crystalline Solid.

Passes

Assay

Min 98%

99%

2% Methanol Solution

Clear and Colourless

Passes

10% Aqueous Solution

Clear and Colourless

Passes

UV Transmission

At 200 nm

Min 70% transmission

78.3%

At 220 nm

Min 90% transmission

91.4%

At 250 nm

Min 98% transmission

99%

At 280 nm

Min 99% transmission

99.5%

Loss on drying (at 120 deg C)

Max 2%

0.56%