(3aα,5aβ,8β,8aβ)-1,2,3a,5,5a,6,7,8-octahydro-2,2,8-trimethylcyclopentapentalene-3,4-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 90171-38-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,1,7 and 1 respectively; the second part has 2 digits, 3 and 8 respectively. Calculate Digit Verification of CAS Registry Number 90171-38: (7*9)+(6*0)+(5*1)+(4*7)+(3*1)+(2*3)+(1*8)=113 113 % 10 = 3 So 90171-38-3 is a valid CAS Registry Number.