1391908-34-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1391908-34-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,9,1,9,0 and 8 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1391908-34:
(9*1)+(8*3)+(7*9)+(6*1)+(5*9)+(4*0)+(3*8)+(2*3)+(1*4)=181
181 % 10 = 1
So 1391908-34-1 is a valid CAS Registry Number.