3-Hydroxy-3-methyl-5-(2,6,6-trimethyl-cyclohex-1-enyl)-valeric acid ethyl ester is a complex organic compound with the molecular formula C16H28O3. It is an ester derivative of valeric acid, featuring a hydroxyl group, a methyl group, and a cyclohexene ring with three methyl substituents. This chemical is characterized by its unique structure, which includes a five-carbon valeric acid chain with a hydroxyl group at the third carbon and a methyl group at the same position. The cyclohexene ring, which is part of the side chain, has two methyl groups at the 2nd and 6th positions and one at the 6th position, making it a trimethyl-cyclohexene. The ethyl ester group indicates that the carboxylic acid group of the valeric acid is esterified with an ethyl group. 3-hydroxy-3-methyl-5-(2,6,6-trimethyl-cyclohex-1-enyl)-valeric acid ethyl ester is known for its potential applications in the fragrance industry due to its pleasant aroma, and it can be found in various natural products, such as fruits and essential oils.
The CAS Registry Mumber 3899-26-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,8,9 and 9 respectively; the second part has 2 digits, 2 and 6 respectively. Calculate Digit Verification of CAS Registry Number 3899-26: (6*3)+(5*8)+(4*9)+(3*9)+(2*2)+(1*6)=131 131 % 10 = 1 So 3899-26-1 is a valid CAS Registry Number.