вот гадство - в таблетках из аптеки она с смеси с глюкозой -
и как отделить?

1,2-Ethanedicarboxylic acid(110-15-6)
1,4-Butanedioic acid
succinic acid
Butanedioic acid, also known as succinic acid and spirit of amber, is a dicarboxylic acid that can be obtained from amber. It is approved as a food additive by the FDA.



Chemical Profile Search
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http://scorecard.goodguide.com/chemical-profiles/summary.tcl?edf_substance_id=110-15-6
http://www.chemicalbook.com/ProductMSDSDetailCB9852802_EN.htm