4,4,7,8a-tetramethyl-1,2,3,4,4a,5,6,8a-octahydro-naphthalene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 52690-41-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,6,9 and 0 respectively; the second part has 2 digits, 4 and 1 respectively. Calculate Digit Verification of CAS Registry Number 52690-41: (7*5)+(6*2)+(5*6)+(4*9)+(3*0)+(2*4)+(1*1)=122 122 % 10 = 2 So 52690-41-2 is a valid CAS Registry Number.