CRYSTALLINE CONSTITUENTS OF OPIUM. 217 
Now if this be its formula, we have only to subtract from it an equivalent of hy- 
druret of opianyl to have narcotine. 
Opianine, . : . : Cog Haz NO, 
Hydruret of opianyl, . : Copioh Ox 
Narcotine, : C,, H,; NO,, 
And pursuing this point, we should develop aremarkable relation between these 
two bases and narcogenine, for all these would be compounds of cotarnine and 
hydruret of opianyl in different proportions, as thus represented :— 
Opianine, : - : C,, H,, NO,, = C,, H,, NO, +2 (Cy) Hy, Og) 
Narcotine, : : 4¢ H,; NO,, = C,,H,, NO, + Pade Oh 
Narcogenine, - 2 (C,, Hy, NO,,)=2(C,, Hy, NOAA) C25 Hs OF 
The possibility of representing narcotine and narcogenine in this manner 
has been already suggested by WertTuEIM,* and derives great support from the 
researches contained in this and the previous paper; and should the view 
I have taken of the constitution of opianine be confirmed, these three will 
form a very remarkable and important group of bases. I have had no oppor- 
tunity of examining Egyptian opium, from which alone opianine is obtained, and 
have been unable to submit my view to the test of experiment, but I have thrown 
it out as deserving the attention of any one who may have occasion to re-examine 
that substance. 
The following is a table of the compounds analyzed in this paper :— 
. Papaverine, . : : : f . C,, H,, NO, 
Nitropapaverine, Pri 1A : ; c C,, H,, (NO,) NO, 
Nitrate of Nitropapaverine, : é : C,, H,, (NO,) NO,+HO NO, 
Platinum salt of papaverine, . : “ C,, H,, (NO,) NO, H Cl Pt+Cl, 
Bromopapayerine, : B z Cyy r NO, 
Hydrobromate of bromopapaverine, C,, H,, Br NO, +H Br 
Teriodide of papaverine, . 3 C,, H,, NO, +1, 
Pentiodide of papaverine, . C,, H,, NO, +1, 
Opianyl (meconine), Coie Oa 
Nitropianyl, . C,) H, (NO,) O, 
Chloropianyl, C,, H, Cl O, 
Bromopianyl, : : : : : C,, H, Br O, 
Todopianyl, . : : - - . Cys LO; 
In conclusion, I may state that in pursuing the investigation of the compounds 
of opium, I have ascertained that by treatment with sulphuric acid, opianic acid 
is converted into a true colouring matter capable of giving, with iron and alum 
mordants, all the colours produced by madder; and taking into consideration 
that the formula of alizarine, C,, H, O,, differs from that of opianic acid by the 
elements of four equivalents of water only, I think it is not impossible that the 
new colouring matter may actually prove identical with it. Should it do SO, 
* Annalen der Chemie und Pharmacie, vol. Ixx., Disdibe 
