Retinyl Bromide is an intermediate used in the synthesis of 13-cis-β-Carotene (C184225), which is an isomer of β-Caroten (C184250). Carrots are one of the highest dietary sources of β-carotene and are naturally high in the (all-E)-β-carotene isomer, which has higher bioavailability, provitamin A activity, and antioxidant capacity compared to Z (cis) isomers. Molecular Formula: C20H29Br Molecular Weight: 349.35