277.

Carter EB (to Abbott Laboratories). Ferrous chelate compositions for oral administration. U.S. 2,816,060, Dec. 10, 1957. (CA52:4938a) [Compns. contg. chelated Fe (I) in a form useful for administration of Fe are described. I are derivs. of compds. of the general formula A(D)N(CH2)?|N(D)(CH2)?|?N(D)A, in which n is 2-6; m is 0-2; D is a CH2COOH or CH2CH2COOH group or an alkali metal salt thereof; and A is a lower alkyl or lower hydroxyalkyl radical or the same as D. Fe forms stable complex or coordination compds. with I and their salts. The Fe is readily released from such compns. upon oral ingestion. Use of the ferrous salt of N-(2-hydroxyethyl)ethylenediamine-N,N1,N1-triacetic acid or ethylenediaminetetraacetic acid is specifically claimed.]

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