β-1,2-epoxy-α-cis-3,4-dihydroxy-trans-3,5-dimethylcyclohexane 3,4-acetonide is a complex organic compound with a unique molecular structure. It is characterized by a cyclohexane ring, which is a six-carbon ring structure, with two methyl groups attached at positions 3 and 5, and a trans configuration. The molecule also features a cis-3,4-dihydroxy group, indicating two hydroxyl groups (-OH) attached to carbons 3 and 4 in a cis orientation, meaning they are on the same side of the ring. Additionally, there is a β-1,2-epoxy group, which is an oxygen atom bonded to two adjacent carbons, creating a three-membered ring. The 3,4-acetonide group is a protecting group that shields the hydroxyl groups at positions 3 and 4, preventing unwanted reactions at these sites. β-1,2-epoxy-α-cis-3,4-dihydroxy-trans-3,5-dimethylcyclohexane 3,4-acetonide is significant in organic chemistry, particularly in the study of complex cyclic structures and the synthesis of natural products.
The CAS Registry Mumber 81939-85-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,9,3 and 9 respectively; the second part has 2 digits, 8 and 5 respectively. Calculate Digit Verification of CAS Registry Number 81939-85: (7*8)+(6*1)+(5*9)+(4*3)+(3*9)+(2*8)+(1*5)=167 167 % 10 = 7 So 81939-85-7 is a valid CAS Registry Number.