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Merck

The crystal structure of potassium (1S)-D-galactit-1-ylsulfonate.

Carbohydrate research (2010-10-26)
Alan H Haines, David L Hughes
摘要

The structure of the crystalline addition product (1) formed between d-galactose and potassium bisulfite (potassium hydrogen sulfite) has been determined by X-ray diffraction analysis and compared with those structures reported for the related addition products from d-glucose and D-mannose. As with the latter two sulfonates, the D-galactose derived compound has an open-chain structure, with the carbon chain adopting a near planar zigzag conformation extending to the sulfur atom, similar to the d-mannose derivative but in contrast to the sickle conformation adopted by the d-glucose derivative. This last compound also differs in crystallising as a monohydrate. Inter-chain linking through cation coordination leads to a three dimensional network in the crystal.

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Sigma-Aldrich
焦亚硫酸钾, ≥98%
Sigma-Aldrich
焦亚硫酸钾, puriss., meets analytical specification of Ph.Eur., BP, NF, FCC, E224, 95.0-101.0% (iodometric), powder, 51.8-57.6% sulfur dioxide
Sigma-Aldrich
焦亚硫酸钾, BioUltra, ≥97.0% (RT)