-
Orcein, also archil, orchil,
lacmus and C.I.
Natural Red 28, are
names for dyes
extracted from
several species of lichen,
commonly known as "orc****a weeds"...
- same as
those of the
related mixture known as
orcein but in
different proportions. In
contrast with
orcein, the prin****l
constituent of
litmus has an average...
- O-methylation with dimethylsulfate. It is used in the
production of the dye
orcein and as a
reagent in some
chemical tests for pentoses, such as Bial's Test...
-
madder or cochineal, so
Medieval violet colors were
inclined toward red.
Orcein, or
purple moss, was
another common purple dye. It was
known to the ancient...
- dye with powder; woad or
indigo dye for blue and
cochineal dye for red.
Orcein, or
purple moss, was
another common violet dye. It was
known to the ancient...
-
belonging to the
family Roccellaceae,
commonly called orc****a weed or orchil.
Orcein and
other lichen dyes have
largely been
replaced by
synthetic versions....
- Jones". 14
August 2020. D.,
Annie (6
September 2009). "Anime Swan Lake". Cbl.
orcein.net.
Retrieved 3
February 2010. "オオクワガタを販売するお店に行く – 自分のオオクワガタは販売業者から買ったものです"...
- used in
histology which is
useful in
identifying elastic fibers.
Often orcein or a
combination of
resorcinol and
fuchsine are used for staining. For counterstaining...
-
presence of
HBsAg is more
commonly demonstrated by the use of the
Shikata orcein technique,
which uses a
natural dye to bind to the
antigen in
infected liver...
- the EU. E175 Gold Gold
Approved in the EU. E180
Pigment Rubine,
Lithol Rubine BK Red
Approved in the EU. E181
Tannin Brown E182
Orcein,
Orchil Purple...
