Prepared by a modified Emanuel and Chaikoff method.
Appearance:
Several centimeters in length, white to creamy white fibers.
Solubility:
Comparatively good solubility in water, insoluble in alcohol, organic solvents and diluted acid solutions. Easily soluble in alkaline solutions and reactions.
A260/A280:
(same/more than)1.8
% Hyperchromicity:
(same/more than)27%
Storage and Stability:
Lyophilized powder may be stored at 4 degrees C. Reconstitute to nominal volume, aliquot and store at 4 degrees C. Reconstituted product is stable for 12 months at 4 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.