Anziaic acid

4-(2,4-Dihydroxy-6-pentylbenzoyloxy)-6-pentylsalicylic acid

6-Hydroxy-4-[(2,4-dihydroxy-6-pentylbenzoyl)oxy]-2-pentylbenzoic acid

2,4-Dihydroxy-6-pentylbenzoic acid 4-carboxy-3-hydroxy-5-pentylphenyl ester