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Bromocresol green ( BCG) is a dye of the triphenylmethane family ( triarylmethane dyes ). It belongs to a class of dyes called sulfonephthaleins. [4] It is used as a pH indicator in applications such as growth mediums for microorganisms and titrations. In clinical practise, it is commonly used as a diagnostic technique.
Paris green (copper (II) acetate triarsenite or copper (II) acetoarsenite) is an arsenic -based organic pigment. As a green pigment it is also known as Mitis green, Schweinfurt green, Sattler green, emerald, Vienna green, Emperor green or Mountain green. It is a highly toxic emerald-green crystalline powder [ 4] that has been used as a ...
Malachite green is also used in endospore staining, since it can directly stain endospores within bacterial cells; here a safranin counterstain is often used. Malachite green is a part of Alexander's pollen stain. Malachite green can also be used as a saturable absorber in dye lasers, or as a pH indicator between pH 0.2–1.8. However, this use ...
Pine green is a rich dark shade of cyan that resembles the color of pine trees. It is an official Crayola color (since 1903) that is this exact shade in the Crayola crayon, but in the markers, it is known as crocodile green. The color pine green is a representation of the average color of the leaves of the trees of a coniferous forest.
Cyanines, also referred to as tetramethylindo (di)-carbocyanines [1] are a synthetic dye family belonging to the polymethine group. Although the name derives etymologically from terms for shades of blue, the cyanine family covers the electromagnetic spectrum from near IR to UV . Chemically, cyanines are a conjugated system between two nitrogen ...
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A bright green liquid leaked from a New York City manhole cover in bizarre footage. There's literal green sludge bubbling up from the ground next to World Trade Center right now,” Dan Pantelo ...
Azo dyes are organic compounds bearing the functional group R−N=N−R′, in which R and R′ are usually aryl and substituted aryl groups. They are a commercially important family of azo compounds, i.e. compounds containing the C-N=N-C linkage. [1] Azo dyes are synthetic dyes and do not occur naturally. [2] [3] Most azo dyes contain only one ...