An equivalent of 36 [micro]g of pyrocatechol
was obtained in 1 mg/mL of aqueous infusion extract.
Evidence of the potential health risks associated with the majority of these confirmed compounds is lacking except for 2,4-DNP and pyrocatechol
. Due to its harmful effect (cataract formation), the U.S.
Structure activity relationship of phenolic compounds (phenole, pyrocatechol
and hydroquinone) on natural lymphocytotoxicity of cartpCyprinuscarpio.
Rybalko, "Use of hypercrosslinked polystyrene for the determination of pyrocatechol
, resorcinol, and hydroquinone by reversed-phase HPLC with dynamic on-line preconcentration," Journal of Analytical Chemistry, vol.
Then Al in the samples was determined by pyrocatechol
violet (PCV) method using a spectrometer .
Schacht, "Gasification of pyrocatechol
in supercritical water in the presence of potassium hydroxide," Industrial & Engineering Chemistry Research, vol.
graecum tubers and leaves were determined as pyrocatechol
However, Kozlov (1964) used pyrocatechol
instead of pyrogallol for peroxidase assay.
Such chemicals include hydroxychavicol, chavibetol, piperbetol, arecoline, carvacrol, caryophyllene, piperitol, eugenol, isoeugenol, allyl pyrocatechol
, chavicol, safrole, anethole, betasitosterol, beta-sitosteryl palmitate, dotriacontanoic acid, tritriacontane, piperine, piperlonguminine, chavibetol acetate, estragole, piperols A and B, and pyrocatechol
diacetate (Zeng et al., 1997; Parmar et al., 1998; Ramji et al., 2002; Samy et al., 2005; Chang et al., 2007).
(plant pigment), which occurs in the epidermis and the head of beets (in amounts of about 0.02%), leads to a yellow-greenish discoloration of sugar juices.
Table 1: PPD Makes Many Hair Shades Possible Compound Brown Red Blonde Blue-Grays p-aminophenol x x x o-aminophenol x x x 2-nitro-ppd x x 4-nitro-ppd x x x m-phenyldiamine x x x pyrocatechol
x x resorcinol x x x p-tolylenediamine x x x pyrogallol x x x x
1991), which was determined by a short-term colourimetric assay using pyrocatechol
violet (Kerven et al.