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Science 12 June 1959:
Vol. 129. no. 3363, pp. 1617 - 1618
DOI: 10.1126/science.129.3363.1617
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Articles

Color Reaction for Certain Amino Acids, Amines, and Proteins

RICHARD F. KEELER 1

1 Montana Veterinary Research Laboratory, Montana State College, Bozeman

Proteins, certain amino acids, and amines undergo a potentially useful color reaction. The reaction involves the apparent formation of pyrroles when the compounds are allowed to react with acetonylacetone. The pyrroles yield colored complexes on coupling with p-dimethylaminobenzaldehyde. This report describes the specificity and possible uses of this reaction in colorimetric measurements and in paper chromatographic detection of these compounds.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)