1. Phlorotannins are classified following the arrangement of the phloroglucinol monomeres. 2. The molecule can also be viewed as a phloroglucinol trimer. 3. Phloroglucinol is a useful intermediate because it is polyfunctional.4. The reaction makes use of phloroglucinol as nucleophile. 5. The molecule possesses a dibenzo-p-dioxin skeleton and a phloroglucinol component. 6. Hlasiwetz is remembered for his chemical analysis of quercitrin, phloroglucinol , resorcinol and creosote. 7. The proteobacterium " Pseudomonas fluorescens " produces phloroglucinol , phloroglucinol carboxylic acid and diacetylphloroglucinol. 8. The proteobacterium " Pseudomonas fluorescens " produces phloroglucinol, phloroglucinol carboxylic acid and diacetylphloroglucinol. 9. Catechin is metabolized to protocatechuic acid ( PCA ) and phloroglucinol carboxylic acid ( PGCA ). 10. Phloroglucinol readily forms 5-aminoresorcinol ( aka Phloramine ) in aqueous ammonia at low temperatures.