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What do the provided dry oligonucleotide pellets look like?

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