p. 1517 - 1519
(2018/05/16)p. 4037 - 4046
(2013/07/19)p. 2086 - 2089
(2011/06/25)p. 990 - 992
(2007/10/03)p. 391 - 394
(2007/10/02)p. 465 - 470
(2007/10/02)hydrogenchloride
formaldehyd
sulfuric acid
3-Carboxyphenol
methyl 2-formyl-3-hydroxybenzoate