You are buying 500 grams Tannic Acid Powder / Crystals, Reagent ACS Grade. This is the highest quality in the USA. CAS# 1401-55-4. FW 1701.23. C76H52O46.
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Rajesh P.
Customer service was outstanding when I had questions about the product.
2 days ago
Suresh K.
Very impressed with the quality and fast delivery. Will shop here again.