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Xu MT, Zhang M, Wang GL, Gong S, Luo MJ, Zhang J, et al
This means compounders must source their raw materials from third-party suppliers, raising questions about purity and consistency
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B12 is a vitamin found only in animal products such as meat and dairy, although sometimes breads and cereals are fortified with it
Thiol-containing compounds (RSH) react with DTNB to form mixed disulfides (RS-S-DTNB), where the thiol group replaces one of the nitrobenzoic acid moieties in DTNB
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