39008-21-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 39008-21-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,0,0 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 39008-21:
(7*3)+(6*9)+(5*0)+(4*0)+(3*8)+(2*2)+(1*1)=104
104 % 10 = 4
So 39008-21-4 is a valid CAS Registry Number.