环庚酮

3-(acetamidomethyl)-5-[[8-[3-(acetamidomethyl)-5-carboxy-2,4,6-triiodoanilino]-8-oxooctanoyl]amino]-2,4,6-triiodobenzoic acid

3-[(butanoylamino)methyl]-5-[[8-[3-[(butanoylamino)methyl]-5-carboxy-2,4,6-triiodoanilino]-8-oxooctanoyl]amino]-2,4,6-triiodobenzoic acid

1,8-diphenyloctane-1,8-dione

7-苯甲酰基庚酸