88497-58-9 C12-15 Pareth-7 carboxylic acid PEG-7 C12-15 Alkyl ether carboxylic acid Pareth-25-7 carboxylic acid Poly(oxy-1,2-ethanediyl), alpha-(carboxymethyl)-omega-hydroxy-,C12-15-alkyl ethers Polyethylene glycol (7) C12-15 alkyl ether carboxylic acid Polyoxyethylene (7) C12-15 alkyl ether carboxylic acid