1330 



co- 



1330 



of m. sulpliobeuzoie acid and of etliyl- 

 (methyl-) sulphuric acid]. Amsterdam, 

 Proc. Sci. K. Akad. Wet., 5, 1903, (482- 

 484) (English) ; Amsterdam, Versl. Wis. 

 Nat. Afd. K. Akad. Wet., 11, 190.3, (555- 

 557) (Dutch 1. 



Frazer, J. C. W. Comparative study 

 of the metasulphamineLeuzoic acids 

 made by different methods. [Identical 

 compounds.] Amer. Chem. J., Balti- 

 more, Md., 30, 1903, (323-330). 



Wegscheider, Rud. und Fiircht, M. 

 [m-Sulphobeuzoic acid and its methyl 

 esters and ester-acids]. Wien, MonHfte 

 (.'hem., 23, 1902, (1093-1146). 



P-Sulphobenzoic acid 



iud its methijl esters and esler acids 



O-NlTUO-p-SULPHOBENZOIC ACID 



and its methyl esters. 



Wegscheider, Paid, und Furclit, M. 

 Wieu, MonHfte Chem., 23, 1902, (1093- 

 11461 



-rLFHOXIC ACID CnHin-itO.S 

 SULPHONIC ACID C14H0O5S 



Anthraquinone sulphonic acid 



C6H,:C20rC,II:.SOdI 



Anihraqu'inone a-monosulplionie and 

 a-disulphonic acids. 



Ejinsky, M. Berlin, Ber. D. chem. 

 Ges., 36, 1903, (4194-4200). 



BEXZEKOID ACIDS WITH FIVE 

 OXYGEN ATOMS. 



ACIDS CnHjn-sOs 



ACIDS CtH.Os 



Trioxybenzoic acid. 



Herzig, J[osef] und PoUak, J. Zur 

 Kenntniss der Alkylderivate der Callus- 

 eanre, der Pyrogallolcarbonsiiure und 

 des Pyrogallols. Berlin, Ber. D. chem. 

 '■OW..36, 1903, (GG0-n62). 



2.3. 4-Trioxybenzoic acid 



[4:3:2:1] CeHjlUH,)^ . COjH 



Monomethyl ether 



:4 : 3 : 2 : l]C6H2(OMe)(OH)2 . COJi 



diethyl ester C6H2(OMe)(OH)2C02Me 



Herzig, J. und Pollak, J. Wiei 

 MonHfte Chem., 23, 1902, (700 70Si. 



3 : i-Dcinethyl ether 



C.,Ho(OHj(OMeJ2(C02H; [2:3:4:1] 



and its methyl ester. 



Herzig, J[osef] und PoUak, J. Ber- 

 lin, Ber. D. chem. Ges., 36, 1903, (660- 



G62). 



Gallic acid 



[5:4:3: IJCeH^lOH Ij . COzH 



Graebe, C[harles]. Ueber Methylgal- 

 lussaure. Berlin, Ber. D. chem. Ges., 

 36, 1903, (660). 



und Martz, E. Ueber 



Synthese der Syiingasaure und iiber 

 ^fethylgallussiiure. Berlin, Ber. D. 

 chem. Ges., 36, 1903, (215-217). 



Herzig, J. und Pollak, J. Ueber die 

 isomeren Pyrogallolather. [Gallussaure 

 Derivaten.] Wien, MonHfte Chem., 23, 

 1902, (< 00-708). 



Perkin, A[rthur] G[eorge]. Note on 

 the destructive distillation of ethyl gal- 

 late. London, Proc. Chem. Soc, 18, 

 1902, (254). 



and Steven, Alec Bowring. 



'Oxidation of gallic acid with potassium 

 ferricyanide.] London, J. Chem. Soc, 

 83, 1903, (199-200). 



Procter, H[enry] It. Leitfaden fiir 

 gerbereichemische Untersuchungeu . 



[Tannin etc.] Deutsche Ausg. bearb. \ . 

 Johannes Paessler. Berlin, (J. Sprin"er 

 1901, ( X\'l -f 292). 24 cm. 8 M. " 



■l-Melhyl ether 



[5:3:4:1] C6H2(OH)2(OCH3K'02n 



and its methyl ester. 



Graebe, C[harles] and Martz, V.. 

 Berlin, Ber. D. chem. Ges., 36, 19i »."'., 

 (215-217); Herzig, J. und PoUak, .1. 

 Wien, MonHfte Chem., 23, 1902. (700- 

 708). 



