(3aR,4R,6aR)-4-Ethyl-2,6-dioxo-hexahydro-furo[3,4-b]furan-3-carboxylic acid methyl ester is a complex organic compound with the molecular formula C9H12O5. It features a unique structure consisting of a hexahydrofuro[3,4-b]furan core, which is a type of furan derivative with a six-membered ring containing two oxygen atoms. The compound has three chiral centers, indicated by the (3aR,4R,6aR) configuration, which specifies the arrangement of substituents around these centers. It includes an ethyl group at the 4-position, and a methyl ester group attached to the carboxylic acid at the 3-position. This molecule is characterized by two ketone groups (diketone) at the 2 and 6 positions, which contribute to its reactivity and potential applications in various chemical processes.
The CAS Registry Mumber 76311-87-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,3,1 and 1 respectively; the second part has 2 digits, 8 and 7 respectively. Calculate Digit Verification of CAS Registry Number 76311-87: (7*7)+(6*6)+(5*3)+(4*1)+(3*1)+(2*8)+(1*7)=130 130 % 10 = 0 So 76311-87-0 is a valid CAS Registry Number.