1081757-91-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1081757-91-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,8,1,7,5 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1081757-91:
(9*1)+(8*0)+(7*8)+(6*1)+(5*7)+(4*5)+(3*7)+(2*9)+(1*1)=166
166 % 10 = 6
So 1081757-91-6 is a valid CAS Registry Number.