219635-54-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 219635-54-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,6,3 and 5 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 219635-54:
(8*2)+(7*1)+(6*9)+(5*6)+(4*3)+(3*5)+(2*5)+(1*4)=148
148 % 10 = 8
So 219635-54-8 is a valid CAS Registry Number.