(+)-(4aR,8aS)-1,2,3,4,4aβ,5,6,7,8,8a-decahydro-1,1-(1,2-ethylenedioxy)-8aβ-methyl-6-oxonaphthalene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 81339-52-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,3,3 and 9 respectively; the second part has 2 digits, 5 and 2 respectively. Calculate Digit Verification of CAS Registry Number 81339-52: (7*8)+(6*1)+(5*3)+(4*3)+(3*9)+(2*5)+(1*2)=128 128 % 10 = 8 So 81339-52-8 is a valid CAS Registry Number.