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About product and suppliers:
        Alibaba.com offers 4,691 cas number products. About 30% of these are auxiliaries and other medicinal chemicals, 27% are animal pharmaceuticals, and 9% are vitamins, amino acids and coenzymes. 

A wide variety of cas number options are available to you, such as free samples, paid samples. 

There are 4,659 cas number suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Egypt, which supply 98%, 1%, and 1% of cas number respectively. 

Cas number products are most popular in Western Europe, North America, and Africa. 

You can ensure product safety by selecting from certified suppliers, including 1,068 with Other, 884 with ISO9001, and 41 with HACCP certification.
        
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