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About product and suppliers:
        Alibaba.com offers 391 n-acetyl glucosamine products. About 18% of these are vitamins, amino acids and coenzymes, 13% are auxiliaries and other medicinal chemicals, and 4% are anti-allergic agents. 

A wide variety of n-acetyl glucosamine options are available to you, such as food grade, tech grade, and medicine grade. You can also choose from free samples, paid samples. 

There are 380 n-acetyl glucosamine suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Japan, and Turkey, which supply 98%, 1%, and 1% of n-acetyl glucosamine respectively. 

N-acetyl glucosamine products are most popular in North America, Western Europe, and South America. 

You can ensure product safety by selecting from certified suppliers, including 62 with ISO9001, 43 with Other, and 5 with ISO22000 certification.