Croceic Acid (Crocetin), with CAS No. 27876 - 94 - 4 and a molecular formula of C??H??O?, is a remarkable multifunctional carotenoid sourced from Crocus sativus L. (saffron stigma) and Gardenia jasminoides fruits. It presents as brick - red orthorhombic crystals and has a molecular weight of 328.40 g/mol.