The chemical "2-(4-hydroxy-phenyl)-1-(5-hydroxy-2,2,8,8-tetramethyl-9,10-dihydro-2H,8H-pyrano[2,3-f]chromen-6-yl)-ethanone" is a complex organic compound with a molecular formula of C26H26O5. It features a phenyl group (C6H5) at the 2-position, a hydroxyl group (-OH) at the 4-position of the phenyl, and an ethanone (keto) group at the 1-position. The second part of the molecule is a 5-hydroxy-2,2,8,8-tetramethyl-9,10-dihydro-2H,8H-pyrano[2,3-f]chromen-6-yl group, which is a polycyclic structure with a pyrano[2,3-f]chromene core, a hydroxyl group at the 5-position, and four methyl groups (-CH3) at the 2, 2, 8, and 8 positions. 2-(4-hydroxy-phenyl)-1-(5-hydroxy-2,2,8,8-tetramethyl-9,10-dihydro-2H,8H-pyrano[2,3-f]chromen-6-yl)-ethanone is known for its antioxidant properties and is a derivative of flavonoids, which are commonly found in plants and have potential applications in the pharmaceutical and food industries due to their health benefits.
The CAS Registry Mumber 6004-65-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,0,0 and 4 respectively; the second part has 2 digits, 6 and 5 respectively. Calculate Digit Verification of CAS Registry Number 6004-65: (6*6)+(5*0)+(4*0)+(3*4)+(2*6)+(1*5)=65 65 % 10 = 5 So 6004-65-5 is a valid CAS Registry Number.