An aqueous surfactant mixture comprised of an alkyl and/or alkenyl oligoglycoside ether carboxylic acid is made by a process comprising reacting in an aqueous solution an alkyl and/or alkenyl oligoglycoside and an .omega.-halocarboxylic acid or a salt or ester thereof in the presence of alkali.

 
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> Vertebrate embryonic patterning-inducing proteins, compositions and uses related therto

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