1239708-91-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1239708-91-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,9,7,0 and 8 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1239708-91:
(9*1)+(8*2)+(7*3)+(6*9)+(5*7)+(4*0)+(3*8)+(2*9)+(1*1)=178
178 % 10 = 8
So 1239708-91-8 is a valid CAS Registry Number.