(2S,3S)-2,3-dihydroxybutanedioic acid

(2S,3S)-2,3-Dihydroxybutanedioic acid is an industrial-grade fine chemical supplied, though not manufactured, by Anhui Hailan Bio-technology Co., Ltd. The supplier describes it as used across food, pharmaceutical, chemical and light-industry applications — as a beer foaming agent, food acidulant and flavoring agent, and in tanning, photography, glass and enamel processing. It is distributed across North America, Latin America, Europe, Australasia, Asia, the Middle East and Africa.