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About product and suppliers:
        Alibaba.com offers 9,592 sigma chemicals products. About 13% of these are pharmaceutical intermediates, 12% are mixing equipment, and 10% are charcoal. 

A wide variety of sigma chemicals options are available to you, such as pharmaceutical intermediates, rubber kneader, and auxiliaries and other medicinal chemicals. You can also choose from coating auxiliary agents, animal pharmaceuticals, and textile auxiliary agents. As well as from industrial grade, medicine grade, and agriculture grade. And whether sigma chemicals is liquid with suspended solids, viscous fluid, or powder. 

There are 9,561 sigma chemicals suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Pakistan, which supply 99%, 1%, and 1% of sigma chemicals respectively. 

Sigma chemicals products are most popular in North America, Southeast Asia, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 878 with ISO9001, 71 with Other, and 6 with ISO14001 certification.