α-Carotene (C09-0818-346)

α-Carotene is the second common form of the orange photosynthetic pigment, carotene (β-carotene is the most common), and possesses a β-ring at one end and an ε-ring at the other. Humans and other mammals can produce retinal (a form of Vitamin A) from the retinyl group(β-ionone ring) of α-carotene, though its activity in this role is less than that of β-carotene, which has two retinyl groups. α-carotene is found in high concentrations in yellow-orange vegetables, such as carrots and squash, and dark-green vegetables, such as broccoli and spinach. High blood levels of α-carotene in adults has also been recently linked to lower mortality rates. It is useful as a control for HPLC. Specification: ≥95% Molecular Formula: C40H56 Molecular Weight: 536.87 EC Number: 200-838-9 PubChem CID: 6419725 Isomeric SMILES: CC1=C(C(CCC1)(C)C)/C=C/C(=C/C=C/C(=C/C=C/C=C(/C)/C=C/C=C(/C)/C=C/[C@H]2C(=CCCC2(C)C)C)/C)/C Beilstein Registry Number: 2067409 Related Documents: https://ald-pub-files.oss-cn-shanghai.aliyuncs.com/aladdinsci/pdp/sds/1/C337473-SCI_830378cb83fb0d89c7135b2283eec4f0.pdf