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Ethylenediaminetetraacetic acid calcium disodium salt hydrate CAS23411-34-9Chelating agent; Preservatives; Antioxidants (by chelation prevent oxidation)
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FAST BLACK K SALT CAS27766-47-8Mainly used with black salt G, according to the proportion of 40:60 spell hybrid black salt ANS. Color black, easy to use, but its stability is not good, easy to produce a knife fabric printing.
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Fluorescein diacetate CAS596-09-8Also called FDA, can pass through the cellular membrane and as fluorescein accumulation in living cells. As compared with BCECF or fluorescein hydrophilic calcein low, fluorescein leakage from cells was also high. FDA is also used in flow cytometry. Fluorescence excitation and emission wavelengths are 488nm and 530nm.