623170-42-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 623170-42-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,2,3,1,7 and 0 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 623170-42:
(8*6)+(7*2)+(6*3)+(5*1)+(4*7)+(3*0)+(2*4)+(1*2)=123
123 % 10 = 3
So 623170-42-3 is a valid CAS Registry Number.