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About product and suppliers:
        Alibaba.com offers 344 stb cas products. About 2% of these are pharmaceutical intermediates, 1% are syntheses material intermediates, and 1% are other organic intermediates. 

A wide variety of stb cas options are available to you, such as pharmaceutical intermediates, syntheses material intermediates. You can also choose from medicine grade, food grade, and industrial grade. As well as from free samples. 

There are 344 stb cas suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of stb cas respectively. 

Stb cas products are most popular in Domestic Market, South America, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 344 with Other, 153 with ISO9001, and 6 with ISO14001 certification.