Cyclopentene, 1-methyl-3-(1-methylethyl)-, (R)-, also known as (R)-3-isopropylidene-1-methylcyclopentane, is a chiral organic compound with the molecular formula C9H16. It is a derivative of cyclopentene, featuring a methyl group at the 1st carbon and an isopropylidene group (a three-carbon branched chain) at the 3rd carbon. The (R)- configuration indicates that the compound has a specific arrangement of atoms in three-dimensional space, which is crucial for its stereochemistry. Cyclopentene, 1-methyl-3-(1-methylethyl)-, (R)- is of interest in organic chemistry, particularly in the synthesis of various pharmaceuticals and other chemical products, due to its unique structure and potential for functional group manipulation.
The CAS Registry Mumber 2698-97-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,6,9 and 8 respectively; the second part has 2 digits, 9 and 7 respectively. Calculate Digit Verification of CAS Registry Number 2698-97: (6*2)+(5*6)+(4*9)+(3*8)+(2*9)+(1*7)=127 127 % 10 = 7 So 2698-97-7 is a valid CAS Registry Number.