Fundraising September 15, 2024 – October 1, 2024
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1
Piperettine From Piper nigrum: Its Isolation, Identification and Synthesis, and, The Constituents of the Non-Saponifiable Fraction of Spartium junceum L.
Stark
,
James
m.p
solid
benzene
fraction
solution
yellow
acetate
ether
obtained
colourless
mixture
ethanol
piperine
sodium
piperettine
extract
fractions
liebermann
ethyl
methanol
washed
plates
benzoate
needles
amyrin
burchard
separated
evaporation
undepressed
chloride
dissolved
dried
product
collected
diol
hydroxide
alumina
chromatogram
isolated
reaction
solvent
crystallised
isolation
potassium
sitosterol
absolute
broom
chloroform
extracted
octadecane
Language:
english
File:
PDF, 3.50 MB
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