Specific optical rotation+89° to +93° (20°C, 589 nm) (c=2, 0.1 N NaOH)
Specific optical rotationon dried substance
Appearance of solution(2% soln. in 0.1 N NaOH) clear, colorless
Loss on drying=<1 % (105°C)
Appearance (Color)White to off-white
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