1621422-14-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1621422-14-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,1,4,2 and 2 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1621422-14:
(9*1)+(8*6)+(7*2)+(6*1)+(5*4)+(4*2)+(3*2)+(2*1)+(1*4)=117
117 % 10 = 7
So 1621422-14-7 is a valid CAS Registry Number.