описание статьи:
Acta Cryst. (1996). C52, 2917-2920 [doi:10.1107/S0108270196007081]
Two Polymorphic Forms of 3-Hydroxy-2-methyl-4H-pyran-4-one (Maltol)
J. Burgess, J. Fawcett, D. R. Russell, R. C. Hider, M. B. Hossain, C. R. Stoner and D. van der Helm
Formula: Two polymorphs of C6H6O
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