What do the provided dry siRNA pellets look like?

There is a normal degree of variation in the appearance of the supplied dry pellets. Variation in appearance per se does not indicate a quality defect. In general, appearance of unmodified and dye-labeled siRNA pellets may vary from powdery to hyaloid. The color of unmodified siRNA pellets may range from transparent over off-white and yellowish to tan. The pellets of labeled siRNA are colored according to the dye attached.