5-Methyl-2,3,4,5,6,7,8,9,10,11,12,13-dodecahydro-1H-cyclopentacyclododecen-1-ol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 77128-36-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,1,2 and 8 respectively; the second part has 2 digits, 3 and 6 respectively. Calculate Digit Verification of CAS Registry Number 77128-36: (7*7)+(6*7)+(5*1)+(4*2)+(3*8)+(2*3)+(1*6)=140 140 % 10 = 0 So 77128-36-0 is a valid CAS Registry Number.