100540-57-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100540-57-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,5,4 and 0 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 100540-57:
(8*1)+(7*0)+(6*0)+(5*5)+(4*4)+(3*0)+(2*5)+(1*7)=66
66 % 10 = 6
So 100540-57-6 is a valid CAS Registry Number.