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Acid fuchsin or fuchsine acid, (also called Acid Violet 19 [1] and C.I. 42685 [1]) is an acidic magenta dye with the chemical formula C 20 H 17 N 3 Na 2 O 9 S 3. It is a sodium sulfonate derivative of fuchsine. Acid fuchsin has wide use in histology, [1] and is one of the dyes used in Masson's trichrome stain. [2]
8005-64-9: Benzyl violet FD&C violet No. 1 Acid violet 49 Food violet 2 42640 triarylethlamine 1694-09-3: Berberine: Umbellatine Natural yellow 18 75160 natural 2086-83-1: Betanin: Beetroot red natural 7659-95-2: Biebrich scarlet: Croceine scarlet Ponceau B Acid red 66 26905 diazo 4196-99-0: Bismarck brown R Vesuvine brown Basic brown 4 21010 ...
Azo violet (Magneson I; [1] p-nitrobenzeneazoresorcinol) is an azo compound with the chemical formula C 12 H 9 N 3 O 4. It is used commercially as a violet dye and experimentally as a pH indicator, appearing yellow below pH 11, and violet above pH 13. [2] It also turns deep blue in the presence of magnesium salt in a slightly alkaline, or basic ...
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Solution: The main components of a universal indicator, in the form of a solution, are thymol blue, methyl red, bromothymol blue, and phenolphthalein. This mixture is important because each component loses or gains protons depending upon the acidity or alkalinity of the solution being tested. It is beneficial to use this type of universal ...
Eli Lilly’s weight loss drug Zepbound is no longer in short supply, the FDA said, worrying patients who use cheaper, off-brand versions of the drug. On Thursday, Dec. 19, the U.S. Food and Drug ...
The most serious charge against the man accused of killing the UnitedHealthcare CEO in broad daylight last week on a Manhattan sidewalk is murder in the second degree. Given the image of the ...
If the bacteria is acid-fast the bacteria will retain the initial red color of the dye because they are able to resist the destaining by acid alcohol (0.4–1% HCl in 70% EtOH). [4] Additionally, it can be used for the staining of bacterial spores. Carbol-fuchsin is also used as a topical antiseptic and antifungal. [citation needed]