1871.] Hydrohromic Acid on Codeia and its derivatives. 507 



product, dissolved in warm water and precipitated by sodium carbonate, 

 is for the most part insoluble in ether, the insoluble portion having all the 

 properties of bromotetramorphia ; the etherial extract shaken with H CI 

 or H Br yields a viscid liquid, which, on standing, becomes filled with 

 crystals consisting apparently of a mixture of the hydrochlorates or hy- 

 drobromates of deoxycodeia and a lower homologue, the latter predomi- 

 nating when the digestion is performed in an open flask. Attempts to 

 prevent the formation of the lower homologue by continuing the digestion 

 with H Br for only two or three hours did not succeed, as the large quan- 

 tity of unaltered bromocodide in the ether extract obtained prevents the 

 separation of the crystalline hydrochlorate or hydrobromate of deoxycodeia, 

 and hitherto no method of separating the deoxycodeia salt from its lower 

 homologue has been arrived at. 



The following numbers were obtained by the analysis of these crystals 

 after recrystallization from hot water to free them from adhering bromo- 

 codide salt i — • 



Specimen A, prepared in sealed tubes, digested six hours at 100° : 

 3185 grm. gaveO'7850 C0 2 and 1970 H 2 O. 

 0-2200 grm. gave 0-1025 Ag CI. 



Specimen B, prepared in an open flask, digested six hours at 100°: 

 0-2825 grm. gave 0-6920 C0 2 and 0*1660 H 3 0. 

 0-2260 grm. gave 0*1085 Ag CI. 



Calculated. 



H, 

 N 



2 

 CI 



Deoxycodeia. 



216 



22 



14 



32 



35-5 



67'60 

 6-89 

 4-39 



10- 01 



11- 11 



C,JL NO./ECl 319-5 lOO'OO 



Deoxymorphia. 



204 



20 



14 



32 



35*5 



66-77 

 6-55 

 4-59 



10- 47 



11- 62 



C 17 H 19 N0 2 ,HC1 305-5 100-00 



Found. 



A. B. 

 67'22 66-80 

 6-87 6-54 



11-53 11-88 



The hydrobromate prepared from the same batch as specimen B above 

 gave the following numbers after drying at 100° : — 



0-3260 grm. gave 0*7010 C0 2 and 0-1720 H 2 0. 

 0-2730 grm. gave 0-1465 Ag Br. 



18 



H 22 



N 



2 

 Br 



Deoxycodeia. 



216 



22 



14 



32 



80 



Calculated. 

 a 



Found. 



59*34 

 6 05 

 3-84 

 8*79 



21-98 



C 18 H 21 N0 2 ,HBr364 100-00 



C ]7 



N 



Br 



Deoxymorphia. 



204 



58-29 



58-64 



20 



5-71 



5-86 



14 



4-00 





32 



9-14 





80 



22-86 



22-83 



N0 2 ,HBr 350 



100-00 



