1-Cyclopentene-1-carboxaldehyde, 4,5-dimethyl, cis- (8CI) is an organic compound characterized by its unique molecular structure. It features a cyclopentene ring, which is a five-membered carbon ring, with a formyl group (aldehyde) attached to the first carbon. Additionally, it has two methyl groups (CH3) at the 4th and 5th positions of the cyclopentene ring, and the molecule adopts a cis-configuration, meaning the substituents are on the same side of the double bond. 1-Cyclopentene-1-carboxaldehyde, 4,5-dimethyl-, cis- (8CI) is primarily used as a synthetic intermediate in the production of various chemicals and pharmaceuticals, owing to its reactive aldehyde group and unique cyclic structure.
The CAS Registry Mumber 6552-81-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,5,5 and 2 respectively; the second part has 2 digits, 8 and 1 respectively. Calculate Digit Verification of CAS Registry Number 6552-81: (6*6)+(5*5)+(4*5)+(3*2)+(2*8)+(1*1)=104 104 % 10 = 4 So 6552-81-4 is a valid CAS Registry Number.