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WASHINGTON – Use it as a postage stamp, not a chemistry text.
In spite of a small error in a chemical structural formula, the Postal Service is going ahead with a commemorative stamp honoring biochemist Gerty Cori.
She discovered cori ester, a derivative of glucose.
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The structure for the chemical is shown on the stamp. The error is in the placement of a line in the structural formula and does not create a new chemical, Postal Service spokesman Roy Betts said Monday.
The Cori stamp is among a set of four 41-cent stamps honoring American scientists and scheduled to be issued March 6.
The error was discovered by Chemical & Engineering News, which published an image of the stamp, and was first reported by Linn’s Stamp News.