Acids. 



riG 



1330 



BENZENOID ACIDS CnH.n-j^Os 

 ACIDS C.fHicOs 



Phenolphthaleinic acid 

 (HO.C6ll4)2C(OHj.C6H4.C02H 



ASUYDIilliE C2(,Hi404 



{Plie7wlphthalein) 



Meyer u. Hantzsch. Halochromie 

 (les rbenolphtaleiiis und seiner Ester. 

 15., 40, (3479). 



Meyer u. Marx. Konstitution der 

 I'hthaleinsalze. B., 40, (1437, 3603j. 



Spengler. Konstitution der Phtalein- 

 salze. Diss, techn. Braunschweig, 1!J04. 



BENZENOID ACIDS WITH SIX 

 OXYGEN ATOilS. 



BENZENOID ACIDS CHzn-uO. 



ACIDS CgHjOs 



4.o-Dioxy---carboxyphenylacetic 



acid (UHjjCeH^lCOjH^.CHj.CL),!! 

 Methylene ether. 



Perkin & Robinson, R. J C, 91, 



(1073 J. 



BENZENOID ACIDS CnHjn.uOe 

 ACID CgH.Os 



3-Oxyplithalonic acid 



COjH.CeHjlOHj.CO.COaH [1:1': 3] 



Methyl ether and its ayihijdroijlteinjl- 

 hijdrazone. 



Bentley, Robinson i*v: Weizmann, C. 

 J.C.,91,(104). 



ACIDS CicHsOe 



2,5-Dioxybenzylidenemalonic acid 



Dimethyl ether 

 C6H3(OMe)2.CH : C(C02H)2 



KaufEmann u. Burr, K. B., 40, (2352). 



3.-l-Dioxybenzylidenemalonic acid 



L'arbuxate 



CO<5^>C6H3.CH : C(C0,H)2 

 Pauly u. Neukam, K. B., 40, (3488). 

 ACID CuHioOe 



/3-Oxy-a-carboxy-cresocoumaric 



acid CH3.CeH3(UHj.C(OH) : C(C02H)j 

 Ethyl eater of the lactone. 



Junkersdorf. Uiuwandlungsprodukte 

 von S-Uxv-m-kresocumarin-a-carbon- 



saureester und /8-().\v-ni-kiesocuniarin. 

 Diss. Bonn, 1907. 



BENZENOID ACIDS C.Ez.-uOo 

 ACIDS CHaOe 



Salicylideneoxalacetic acid 



CO,H.CU.O COjII) : CII.CbH^.OH 

 Ethyl eater liylrocldoride. 



Gault. BL, 35, (12C4). 



BENZENOID ACIDS C„H2u-2406 

 ACID Ci«Hi20g 



Trioxy-i3-naphthoylbenzoic acid 



CU2H.C6H,iOlI),.C(J.C,on6.0H 



Dimethyl ether 

 C02H.C6H2(0.\leJ2.CO.CioH6.0H 



Bentley, Friedl & Weizmann, C. J.C., 

 91, (1588). 



SULPIIONIC ACIDS WITH SEVEN 

 OXYGEN ATOMS. 



ACID CuHcOtS: 



1-Naphthol 3 ; "i-disulphonic acid 



OH.C,oH5(SU3H)2 



S-A.MIS0-DERIVAT1VE. 



Veley. [Atlinitv constant.] J.C, 91, 

 (1246). 



ACID CzHsOtS 



Sulphonaphthalic acid 



DlBUO.MOSCLrHONArnTH.\LIC ACID 



CioH3Br2(S03H)(C02H)2 [4:5:3:1:8] 

 Bargellini. 43983. 



BENZENOID ACIDS WITH SEVEN 

 OXYGEN ATOMS. 



BENZENOID ACID CnHzn-ioOj 

 ACID CizHhO, 



Phenolglycuronic acid. 

 Salkowski u. Neuberg. 514G6. 

 Phenolglnkuronsiiure. 



BENZENOID ACID CnHjn-isOv 

 ACID CmHioO, 



Tetraoxybenzoylbenzoic acid 



Trimethyl ether 

 MeO.C6H3(OH).CO.C6H2(OMe)2.C02H 



Perkin, jun. & Robinson, R. London, 

 Proc. Cheni. Soc, 23, i2'Jlj. 



