Retinoic acid 2-hydroxyethylamide (CAS NO.33631-47-9) is also named as 2-Hydroxyethyl retinamide ; BRN 2161307 ; CCRIS 4284 ; HER ; Hydroxyethyl retinamide ; N-(2-Hydroxyethyl)retinamide ; N-2-Hydroxyethyl retinamide ; Ro 8-4969 .