219762-21-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 219762-21-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,7,6 and 2 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 219762-21:
(8*2)+(7*1)+(6*9)+(5*7)+(4*6)+(3*2)+(2*2)+(1*1)=147
147 % 10 = 7
So 219762-21-7 is a valid CAS Registry Number.