4,4a,5,6,7,7aα,8,9-octahydro-5β-hydroxy-4aβ,8β-dimethylazuleno<6,5-b>furan-2(3)H-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 83097-08-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,0,9 and 7 respectively; the second part has 2 digits, 0 and 8 respectively. Calculate Digit Verification of CAS Registry Number 83097-08: (7*8)+(6*3)+(5*0)+(4*9)+(3*7)+(2*0)+(1*8)=139 139 % 10 = 9 So 83097-08-9 is a valid CAS Registry Number.