Coloured Compounds. 



807 



5020 



Tetraethylrhodamine 

 Silver nitrate compound 

 C^gHjoOsN^.AgNOj 

 Noelting, E. und Dziewonski, K. I.e. 



Diresorcinolpyromellitein C22Hi209 



Silberrad, U. Loudon, J. Chem. Sec, 

 89, 1906, (1787-1811) ; [abstract] Lou- 

 dou, Proe. Chem. Soc, 22, lyOG, (2(U- 

 252). 



Tetraresorcinolmelliteins CseHszOie 

 Silljerrad, 0. /..'. 



Hexaresorcinolmellitein C4sH3jOi3 

 Silberrad, 0. I.e. 



NATURAL DYESrUFFS OF 

 VEGETABLE ORIGIN. 



Katid, D. Lj. Bildung des roten 

 FaibstolTs (Anthocyaii) in vegetativen 

 Organeii der Plianerogamen. Diss. 

 HaUe a. S., 1905. 



Elett. A. Ziu" Chemie der Weigert- 

 sclien Elasticaiarbiujg. [Nebst BeiDer- 

 kung vou L. Michaelis.1 Zs. exper. 

 Path., Berlin, 2, 1906, (655-664); 3, 

 1906, (25-i}. 



Kohl, F. G. Die Farbstoffe der Dia- 

 tomeen-Chromatophoren. Berlin, Bar. 

 D. bot. Ges., 24, 1906, (124-134). 



Langstein, L. Chemismus der Ochro- 

 nose [ochronotisches Pigment]. Ber- 

 liner klin. Wochensclir., 43, 1906, (597- 

 598). 



Rlcliter, P. Giijuakharz. Arch. 

 Pharm., Berlin, 244, 1906, (90-119). 



Tswett, il. Phaeophyceeiifarbstoft'e. 

 Berlin, Ber. D. bot. Ges., "24, 1906,(235- 

 244). 



lirazilehi Qi^n^s 



Engels, P. and Perkins, W. H. jun. 

 [Trimethylbrazilein and its compounds 

 with formic acid and with hydroxyl- 

 amine ; trimethylisiobrazilein sulphate.] 

 London, Proc. \'hem. Soc, 22, 1906, 

 (132-133). 



Bvaz'd'in CjgHi^Os 



Engels, P. and Perkins, W. H. jun. 

 Some derivatives of brazilin. I.e. 



Herzig, J. und Pollak, J. Brasilin 

 imd Hamatoxvlin. Berlin, Ber. 1). chem. 

 Ges., 39, 1906, (265-267). 



Perkin, W. H. jiin. and Robinson, R. 

 Brazilin and haematoxvlin. VIII. Lon- 



don, Proc. Chem. Soc, 22, 1906, (160- 

 161). 



Dunstan, A. E. and Hewitt, J. T. The 

 methylation of chrysaniline (2-amiuo-5- 

 /j-aminopheavlacridine). London, J. 

 Chem. Soc.,' 89, 1900, (482-488); [ab- 

 stract] London, Proc. Chem. Soc, 22, 

 1906, (73). 



Ca'ruVirjnone. 



Moir, J. The constitution of cserulig- 

 none (cedrlret). London, Proc. Chem. 

 Soc, 22, 1906, (110-111). 



(.'ureumin. 



Jackson, C. L. und Clarke, L. Formel 

 des Curcuniins. Berlin, Ber. D chem. 

 Ges., 39, 1906, (2269-2270). 



Ellagie and Flavellaaic acids. 



Perkin, A. G. [Constitution of ellagic 



acid C6H(OH)3<§j^>C6H(OH)2 



Flavellagic acid and its acetyl and ben- 

 zoyl derivatives 



C6(OH)3<§^>C6H(OH)2] 



London, J. Chem. Soc, 89, 1906, (251- 

 261) ; [abstract] London. Proc. Chem. 

 Soc, 22, 1906, (41-42). 



Perkin, A. G. [Hexahydroxydi- 

 phenylmethylolid 



Csn(OH)3<!^>CeH(OH)3 

 and its acetyl derivative.] I.e. 



Perkin, A. (L A reaction of ellagic 

 and liavellagic acids. [Compound, 

 Ci4tIeUiQ, obtained by their oxidation ; 

 also its hexacetvl derivative.] London, 

 Proc Chem. Soc, 22, 1900, (114). 



Iiid'iijo. 



Beckmann, E. und Gabel, W. Mole- 

 kulargriisse des Indigos. Berlin, Ber. 

 D. chem. Ges., 39, 1906, (2611-2618). 



Binz, A. Addition von Alkali an 

 Indigo. Zs. angew. Chem., Berlin, 19, 

 1906, (1415-14r8j. 



Markfeldt, O. Natiiiiicher und 

 kiinstlicher Indigo und ihre Rivalen. 

 Farbenztg, Dresden, 11, 1906, (1045- 

 1048). 



Perkin, A. G. An oxidation product 

 of indigotin [Ci5Hg02N2, its hydriodide, 

 and its reduction]. London, Proc Chem. 

 Soc, 22, 1906, (198-199). 



Indigo-yellow, f.c. (199). 



