- China Yancheng Ruibang Chemical
- 3-hydroxypyridine,benfotiamine,2-methylresorcinol,2,3-diaminopyridine,2-amino-3-hydroxypyridine.
- Address:changshou road, shanghai, shanghai, China,200060
- ShangHai Science Pharmaceutical Chemical CO., LTD
- benfotiamine, l-carnosine, sulbutiamine, thiamine disulfide, allithiamine.
- Address:859 ChengLiu Road, JiaDing, ShangHai,China, China
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