fast scarlet R base
noun
often capitalized F&S
: an orange-red crystalline amine CH3OC6H3(NO2)NH2 that is often sold in the form of its stabilized diazonium complex salt with zinc chloride and is used in producing azoic dyes; 4-nitro-ortho-anisidine
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“Fast scarlet R base.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fast%20scarlet%20R%20base. Accessed 22 Nov. 2024.
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