The composition of berberine phosphate : ead before the British Pharmaceutical Conference in London, July 1900 / by Frank Shedden.

  • Shedden, Frank.
Date:
[1900]
Catalogue details

Licence: In copyright

Credit: The composition of berberine phosphate : ead before the British Pharmaceutical Conference in London, July 1900 / by Frank Shedden. Source: Wellcome Collection.

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    It was thought of interest to compare the results obtained by this method with the less accurate determinations of the berberine by weighing it in the form of the berberine-chloroform compound, and these are presented in the following table: — Berberine Salt used. B = Berberine, C,0 H17 N 04. ht of Salt aken. 6 . o-a Da® ^ S .£ ° o 08 a 3 +3 . <X> E 1=3 o ® ® § a ° 83ai r, t ^ W o be 5 ^ e-0 «4H o • © a * «g P <D CD entage of calculated 7 N 04 = 335 = 1948. be4-3 • rH <d £ ,?a° |o be © .a -ri CD O £ % V ® ^ ca © ,2 Oh 8 ® ^-T*3 © 5 W O ^ CM o B-HNOj . . . .{ 1 i 0-5274 0-1956 0-6074 0-0479 0-4474 0-1647 84-90 84-20 j- 84-16 0-3831 0-4118 — 0-3035 79-23 1 b-h2so4 . . . .] 0-3384 0-3594 — 0-2649 78-29 177 36 ( 0-1953 — 00441 0-1516 77-62 1 f 0-6574 0-5312 — 0-3915 59-56 1-60-04 B • 2 H3 P 04 + 1A H2 0 .1 0-5826 0-4788 — 0-3529 60-56 (From acetone compound 1 0-2268 — 0-0392 0-1348 59-13 ) with phosphoric acid) . 1 0-1868 _ 0-0326 0-1121 6001 B • 2 Ha P 04 + 1 H2 0 From B • H2S 04 and Ca H4 0-2052 0-0362 0-1244 60-62 (P 04)2 (re-crystallised). 0-1920 — 0-0338 0-1162 60-52 61-01 The Wellcome Chemical Kesearch Laboratories.