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About product and suppliers:
        Alibaba.com offers 1,766 thiourea products. About 56% of these are pharmaceutical intermediates, 45% are agrochemical intermediates, and 40% are dyestuff intermediates. 

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

There are 1,718 thiourea suppliers, mainly located in Asia. The top supplying countries are China (Mainland), South Africa, and India, which supply 98%, 1%, and 1% of thiourea respectively. 

Thiourea products are most popular in Southeast Asia, Eastern Asia, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 389 with ISO9001, 98 with Other, and 3 with ISO22000 certification.