alpha-naphthol test

/ˌælfə tɛst/
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Definitions of alpha-naphthol test
  1. noun
    biochemical indicator of the presence of carbohydrates in a solution; if carbohydrates are present a violet ring is formed by reaction with alpha-naphthol in the presence of sulfuric acid
    synonyms: Molisch reaction, Molisch test, Molisch's test
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    type of:
    indicator
    (chemistry) a substance that changes color to indicate the presence of some ion or substance; can be used to indicate the completion of a chemical reaction or (in medicine) to test for a particular reaction
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