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Resazurin (7-Hydroxy-3 H -phenoxazin-3-one 10-oxide) is a phenoxazine dye that is weakly fluorescent, nontoxic, cell-permeable, and redox‐sensitive. [2][3] Resazurin has a blue to purple color above pH 6.5 and an orange color below pH 3.8. [4] It is used in microbiological, cellular, and enzymatic assays because it can be irreversibly reduced ...
Alkalinity (from Arabic: القلوية, romanized: al-qaly, lit. 'ashes of the saltwort') [1] is the capacity of water to resist acidification. [2] It should not be confused with basicity, which is an absolute measurement on the pH scale. Alkalinity is the strength of a buffer solution composed of weak acids and their conjugate bases.
Zazzle is an American online marketplace that allows designers and customers to create their own products with independent manufacturers (clothing, posters, etc.), as well as use images from participating companies. Zazzle has partnered with many brands to amass a collection of digital images from companies like Disney, Warner Brothers and NCAA ...
Check If It's a First Edition. Open the book to the copyright page, says Mann. For a book to be worth anything significant, you typically have to have a first-edition copy from the original ...
Agent Purple and Orange were also used to clear brush in Canada. Agent Purple was chemically similar to the better-known Agent Orange, both of them were consisting of a mixture of the herbicides 2,4-D and 2,4,5-T and in both cases the 2,4-D and 2,4,5-T constituted equal shares of the Agent. [1] The difference was in the form of 2,4,5-T.
Citric acid is an organic compound with the skeletal formula H O C(CO 2 H)(CH 2 CO 2 H) 2. [10] It is a colorless weak organic acid. [10] It occurs naturally in citrus fruits.In biochemistry, it is an intermediate in the citric acid cycle, which occurs in the metabolism of all aerobic organisms.
September 16, 2024 at 4:02 PM. In another legal setback, former President Donald Trump has lost a court battle against the singer Eddy Grant after a judge ruled his campaign used the 1983 hit song ...
Anthocyanins (from Ancient Greek ἄνθος (ánthos) 'flower' and κυάνεος / κυανοῦς (kuáneos/kuanoûs) 'dark blue'), also called anthocyans, are water-soluble vacuolar pigments that, depending on their pH, may appear red, purple, blue, or black. In 1835, the German pharmacist Ludwig Clamor Marquart named a chemical compound ...
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