(1R,2R,3aR,4S,5aR,8aS)-1,4,7,7-Tetramethyl-octahydro-cyclopenta[c]pentalene-2,3a-diol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 89111-52-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,1,1 and 1 respectively; the second part has 2 digits, 5 and 2 respectively. Calculate Digit Verification of CAS Registry Number 89111-52: (7*8)+(6*9)+(5*1)+(4*1)+(3*1)+(2*5)+(1*2)=134 134 % 10 = 4 So 89111-52-4 is a valid CAS Registry Number.