1622905-98-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1622905-98-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,2,9,0 and 5 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1622905-98:
(9*1)+(8*6)+(7*2)+(6*2)+(5*9)+(4*0)+(3*5)+(2*9)+(1*8)=169
169 % 10 = 9
So 1622905-98-9 is a valid CAS Registry Number.