103621-54-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103621-54-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,6,2 and 1 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 103621-54:
(8*1)+(7*0)+(6*3)+(5*6)+(4*2)+(3*1)+(2*5)+(1*4)=81
81 % 10 = 1
So 103621-54-1 is a valid CAS Registry Number.