Abstract: The present invention relates to a biodegradable amino-carboxylic acid chelating agent which comprises a compound of the following formula (1) and at least one compound selected from the group consisting of aspartic acid, maleic acid, acrylic acid, malic acid, glycine, glycolic acid, iminodiacetic acid, nitrilotriacetic acid, &agr;-alanine, &bgr;-alanine, imino-dipropionic acid, fumaric acid, a synthetic starting amino acid and a synthetic intermediate amino acid and a salt thereof in an amount of 8% by weight or less based on the compound of the formula (1): wherein R1 represents hydrogen or an unsubstituted or substituted hydrocarbon group of 1-20 carbon atoms, R2 represents hydrogen or an unsubstituted or substituted hydrocarbon group of 1-8 carbon atoms, R1 and R2 may form a ring together, the substituent which can be present in R1 and R2 is at least one member selected from the group consisting of —OH, —CO2M and —SO3M where M represents hydrogen or an alkali metal; X r

Abstract: The present invention relates to a biodegradable amino-carboxylic acid chelating agent excellent in biodegradability and for use as a chelating agent, which is in the form of a solid, aqueous solution or slurry excellent in handling ability, wherein the chelating agent comprises a detergent composition having excellent detergency and high biodegradability.

Abstract: Disclosed is a biodegradable chelating agent which comprises a compound of the following formula [1] and at least one compound selected from the group consisting of aspartic acid, maleic acid, acrylic acid, malic acid, glycine, glycolic acid, iminodiacetic acid, nitrilotriacetic acid, &bgr;-alanine, &bgr;-alanine, iminodipropionic acid, fumaric acid, a synthetic starting amino acid and a synthetic intermediate amino acid and a salt thereof in an amount of 8% by weight or less based on the compound of the formula [1]: 1

Abstract: Disclosed is a biodegradable chelating agent which comprises a compound of the following formula [1] and at least one compound selected from the group consisting of aspartic acid, maleic acid, acrylic acid, malic acid, glycine, glycolic acid, iminodiacetic acid, nitrilotriacetic acid, &agr;-alanine, &bgr;-alanine, iminodipropionic acid, fumaric acid, a synthetic starting amino acid and a synthetic intermediate amino acid and a salt thereof in an amount of 8% by weight or less based on the compound of the formula [1]: 1

Abstract: Disclosed is a biodegradable chelating agent which comprises a compound of the following formula [1] and at least one compound selected from the group consisting of aspartic acid, maleic acid, acrylic acid, malic acid, glycine, glycolic acid, iminodiacetic acid, nitrilotriacetic acid, &agr;-alanine, &agr;-alanine, iminodipropionic acid, fumaric acid, a synthetic starting amino acid and a synthetic intermediate amino acid and a salt thereof in an amount of 8% by weight or less based on the compound of the formula [1]: wherein R1, R2, X and Y are defined.

Abstract: A detergent composition comprising an alkaline metal hydroxide, an alkaline metal salt of L-aspartic-N,N-diacetic acid, optionally a scale inhibitor and/or an alkaline metal salt of gluconic acid. This detergent composition is used for removing soils, stains and other contaminants adhering to or deposited on the surfaces of glass, plastics, metals, etc., specifically the hard surfaces of, for example, containers for foodstuffs such as drinks and process foods, container boxes, piping of food production equipment, tanks, sterilizing plates, plate heat exchangers, filling machines and the like, by such means as soaking the parts to be cleaned in a cleaning solution, circulating a cleaning solution in the facilities to be cleaned, or spraying a cleaning solution over the surfaces to be cleaned. This detergent composition has excellent cleaning performance and excellent biodegradability.

Abstract: A detergent composition comprising an alkaline metal hydroxide, an alkaline metal salt of L-aspartic-N,N-diacetic acid, optionally a scale inhibitor and/or an alkaline metal salt of gluconic acid. This detergent composition is used for removing soils, stains and other contaminants adhering to or deposited on the surfaces of glass, plastics, metals, etc., specifically the hard surfaces of, for example, containers for foodstuffs such as drinks and process foods, container boxes, piping of food production equipment, tanks, sterilizing plates, plate heat exchangers, filling machines and the like, by such means as soaking the parts to be cleaned in a cleaning solution, circulating a cleaning solution in the facilities to be cleaned, or spraying a cleaning solution over the surfaces to be cleaned. This detergent composition has excellent cleaning performance and excellent biodegradability.

Abstract: Aspartic acid is reacted with prussic acid and formaldehyde to give an amino-polycarboxylic acid or a salt thereof represented by-the following formula: ##STR1## wherein each of R.sup.1 and R.sup.2 represents a hydrogen atom, an alkali metal or an ammonium group; and each of R.sup.3 and R.sup.4 represents a hydrogen atom or --CH.sub.2 --COOR.sup.1, provided that R.sup.3 and R.sup.4 do not represent a hydrogen atom simultaneously. The amino-polycarboxylic acid which is readily biodegradable and has an excellent chelating ability can be obtained from aspartic acid in a high yield and in a high purity.

Abstract: The compounds of the subject invention can be represented as follows: ##STR1## wherein each of R.sup.1, R.sup.2, R.sup.3, R.sup.4, are the same or different and are hydrogen (H), or a lower alkyl group of from about 1-4 carbon atoms, or a lower alkoxy group of from about 1-4 carbon atoms.R is a substituted aniline ##STR2## wherein one of R.sup.5, R.sup.6, R.sup.7 is an alkanol having the formula --(CH.sub.2).sub.n OH, n=1-4, or its carbamate ester having the formula --(CH.sub.2).sub.n OCONR'R", n=1-4, and wherein R' and R" the same or different lower alkyl groups of from about 1 to 4 carbon atoms, one of R' and R" may be hydrogen (H), and the remaining groups are hydrogen.Additionally, the subject invention provides methods for synthesizing the above-identified compounds, physiologically acceptable compositions containing these compounds and methods for using these compounds to inhibit the growth of tumor cells.