1224-78-8 67110-71-8 Anhydro-retinol Anhydrovitamin A Cyclohexene, 6-((2E,4E,6E)-3,7-dimethyl-2,4,6,8-nonatetraenylidene)-1,5,5-trimethyl-, (6E)- Cyclohexene, 6-(3,7-dimethyl-2,4,6,8-nonatetraenylidene)-1,5,5-trimethyl-, (all-E)-