The chemical "7-(O2,O3-isopropylidene-β-D-ribofuranosyl)-1,3-dimethyl-3,7-dihydro-purine-2,6-dione" is a complex organic compound with a molecular formula of C12H16N4O4. It is a derivative of purine, a heterocyclic aromatic organic compound consisting of a pyrimidine ring fused to an imidazole ring. This specific compound features a ribofuranosyl group attached to the 7-position of the purine ring, with an isopropylidene protecting group at the 2' and 3' positions of the ribose sugar. The isopropylidene group is a chemical modification that helps to stabilize the molecule and protect the hydroxyl groups during chemical reactions. 7-(O2,O3-isopropylidene-β-D-ribofuranosyl)-1,3-dimethyl-3,7-dihydro-purine-2,6-dione is significant in the field of nucleoside chemistry, as it represents a modified nucleoside with potential applications in medicinal chemistry and the development of antiviral or anticancer drugs.
The CAS Registry Mumber 4099-86-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,0,9 and 9 respectively; the second part has 2 digits, 8 and 6 respectively. Calculate Digit Verification of CAS Registry Number 4099-86: (6*4)+(5*0)+(4*9)+(3*9)+(2*8)+(1*6)=109 109 % 10 = 9 So 4099-86-9 is a valid CAS Registry Number.