1622205-41-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1622205-41-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,2,2,0 and 5 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1622205-41:
(9*1)+(8*6)+(7*2)+(6*2)+(5*2)+(4*0)+(3*5)+(2*4)+(1*1)=117
117 % 10 = 7
So 1622205-41-7 is a valid CAS Registry Number.