107557-19-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 107557-19-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,5,5 and 7 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 107557-19:
(8*1)+(7*0)+(6*7)+(5*5)+(4*5)+(3*7)+(2*1)+(1*9)=127
127 % 10 = 7
So 107557-19-7 is a valid CAS Registry Number.