【摘 要】
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1.Development of China’s vitamin B12sectorVitamin B12 is a corrin organic compoundcontaining cobalt and pharmaceutical gradevitamin B12 is mainly provided to
【出 处】
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China Chemical Reporter
论文部分内容阅读
1.Development of China’s vitamin B12sectorVitamin B12 is a corrin organic compoundcontaining cobalt and pharmaceutical gradevitamin B12 is mainly provided to themarket in the form of cyanocobalamin.There are several other vitamin B12derivatives,such as mecobalamin,hydroxocobalamin,cobalamin.In the early1950s there was only a few hundred kilo-grams of output in the whole world.In1966,North China Pharmaceutical Factory,the first Chinese pharmaceutical factory
1. Development of China’s vitamin B12sectorVitamin B12 is a corrin organic compound containing cobalt and pharmaceutical grade vitamin B12 is mainly provided to the market in the form of cyanocobalamin. There are several other vitamin B12 derivatives, such as mecobalamin, hydroxocobalamin, cobalamin. The early1950s there was only a few hundred kilo-grams of output in the whole world. In 1966, North China Pharmaceutical Factory, the first Chinese pharmaceutical factory
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