1057669-65-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1057669-65-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,5,7,6,6 and 9 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1057669-65:
(9*1)+(8*0)+(7*5)+(6*7)+(5*6)+(4*6)+(3*9)+(2*6)+(1*5)=184
184 % 10 = 4
So 1057669-65-4 is a valid CAS Registry Number.