7,7,8,8-tetramethyl-(1R,6cH)-bicyclo[4.2.0]octane is a complex organic compound with a unique bicyclic structure. It consists of two carbon rings, one with four carbon atoms (a cyclobutane ring) and the other with five carbon atoms (a cyclopentane ring), connected at two adjacent carbon atoms. The compound is characterized by four methyl groups (CH3) attached to the carbon atoms at positions 7, 7, 8, and 8. The stereochemistry is indicated by the (1R,6cH) notation, which specifies the configuration of the molecule. 7,7,8,8-tetramethyl-(1rH,6cH)-bicyclo[4.2.0]octane is known for its potential applications in various chemical and pharmaceutical industries, particularly as a chiral building block for the synthesis of more complex molecules.
The CAS Registry Mumber 5689-16-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,6,8 and 9 respectively; the second part has 2 digits, 1 and 6 respectively. Calculate Digit Verification of CAS Registry Number 5689-16: (6*5)+(5*6)+(4*8)+(3*9)+(2*1)+(1*6)=127 127 % 10 = 7 So 5689-16-7 is a valid CAS Registry Number.