1082137-91-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1082137-91-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,8,2,1,3 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1082137-91:
(9*1)+(8*0)+(7*8)+(6*2)+(5*1)+(4*3)+(3*7)+(2*9)+(1*1)=134
134 % 10 = 4
So 1082137-91-4 is a valid CAS Registry Number.