- Acid
Orange 7, also
known as 2-
naphthol orange is an azo dye. It is used for
dyeing wool. It is
produced by azo
coupling of β-
naphthol and
diazonium derivative...
-
Orange GGN, also
known as alpha-
naphthol orange, is an azo dye
formerly used as a food dye. It is the
disodium salt of 1-(m-sulfophenylazo)-2-naphthol-6-sulfonic...
- p-diethylaminoazobenzene or 1,3-benzenediol, 2,4-bis [(alkylphenyl)azo-] red
alkyl derivatives of azobenzene-4-azo-2-
naphthol orange benzene-azo-2-napthol...
- The
second step
involves adding the
solution of the
diazonium salt to 2-
naphthol, to
produce the
diazo dye.
Sudan I is
prone to
photodegradation when exposed...
- agent),
serves as a nucleophile.
classical coupling agents are
phenols and
naphthols.
Usually the
diazonium reagent attacks at the para
position of the coupling...
- Red G,
Silotras Red TG,
Solvent Red 1,
Sudan R, and amethoxybenzenazo-β-
naphthol (MBN).
According to
European Food
Safety Authority,
Sudan Red G is considered...
-
Orange G also
called C.I. 16230, Acid
Orange 10, or
orange gelb is a
synthetic azo dye used in
histology in many
staining formulations. It
usually comes...
-
Sunset yellow FCF (also
known as
orange yellow S, or C.I. 15985) is a petroleum-derived
orange azo dye with a pH-dependent
maximum absorption at about...
-
reduction of some azo dyes.
Methyl orange (azo
coupling with dimethylaniline) Acid
orange 7 (azo
coupling with 2-
naphthol)
Chrysoine resorcinol (azo coupling...
-
condensation of
corresponding 5-(dialkylamino)-2-nitrosophenols with 2-
naphthol. The
yields are
generally moderate as no co-oxidant is used in this procedure...
