219774-63-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 219774-63-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,7,7 and 4 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 219774-63:
(8*2)+(7*1)+(6*9)+(5*7)+(4*7)+(3*4)+(2*6)+(1*3)=167
167 % 10 = 7
So 219774-63-7 is a valid CAS Registry Number.