107-66-4 16298-74-1 25238-98-6 35837-53-7 38491-08-6 4-01-00-01530 (Beilstein Handbook Reference) 72283-56-8 AI3-07849 BRN 0607224 DIBUTYL PHOSPHATE DP 4 (coupling agent) Di-n-butyl hydrogen phosphate Di-n-butyl phosphate Di-n-butylphosphoric acid Dibutyl acid phosphate Dibutyl hydrogen phosphate EINECS 203-509-8 HSDB 2513 Phosphoric acid, dibutyl ester