We are Changzhou Chao-Shun Chemical Co., Ltd. based in changzhou , China. We are member of Tradekey.com since August, 2009. Our business is related to Chemicals industry and we specifically deal in hyaluronic acid, propylene oxide, 3 - phthalic anhydride fluoride (3 - fluoro phthalic anhydride), 6 - bromo-hexanol,2-Chlorothiazole. Please find our product details below: 3-Fluorophthalic anhydride assay:98%min, Appearance: White to Yellow Powder, CASNO: 652-39-1, product use: organic reagents, pharmaceutical intermediates. Hyaluronic Acid (HA) Hyaluronic Acid (HA) is a mucopolysaccharide composed of repeat disacchaaride units of N-acetylgucosamine and glucuronic acid .The commercial HA is commontly a salt, For example , Sodium hyaluronate , Calcium hyaluronate , Zinc hyaluronate. Our company&＃039;s product rang has, cosmetic grade, food grade . We can also be requested in accordance with the molecular weigth of your orde . 2, 4, 5-Trichlorophenol Number: A003 Name: 2, 4, 5-Trichlorophenol Appearance: dust-colour Quantity: 97% CASNO: 95-95-4 Class: ChaoShun 3-Fluorophthalic anhydride assay:98%min, Appearance: White to Yellow Powder, CASNO: 652-39-1, product use: organic reagents, pharmaceutical intermediates. Thank you for taking the time to go through our business profile. If there are any question, inquiry or comments, please feel free to contact us.