~'IIERF: is iio ntiiilyticnl process wlticli 110s Iiiid more clcttinnds tiinclc iipoii it iii rccciit years thnn 11 riipid niid reliiible :iictliod for cstiiiintiiig orgiiiiic iiitropcii. Tlic IICW process of Kjcldntil iippcnrs to Iiirvc siipplictl tlicsc rcqiiircnteitts. Tliiit of N'nnklyti is oliv
A study of the stability of physostigmine solutions*
β Scribed by Krantz, John C. ;Slama, Frank J.
- Publisher
- Elsevier
- Year
- 1927
- Weight
- 196 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0898-140X
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π SIMILAR VOLUMES
## Abstract The NMR parameters of (β)βphysostigmine free base (1) in CD~2~Cl~2~, CDCl~3~ and DMSOβ__d__~6~ were used to determine stereospecific assignments. The vicinal homonuclear coupling constants exhibited by the internally diastereotopic pyrrolidinyl protons of the Cβring can be interpreted a
## Abstract The rates of decomposition of carotene in liquid paraffin and in hydrogenated coconut oil under accelerated conditions at 100Β° C. with forced aeration have been investigated. In the case of paraffin containing less than 50ΞΌg./ml., the rate is shown to be proportional to the log. of the
Vcl. SLI, Ao. 161 st,ood that i t IWS being produced 011 tllc mllt.inent with t h o aid of clicnp wntcr power n t 2s. ~( 1 . per loo0 cb. ft. TI10 proccss adopted by tho ~~ndisclie coiiipnny ivns prcfcrnblc ~vlicii liydrogeii was requircd i n vcry largo qunntitics, but the ordinary Cntd,\tiC process