1887197-42-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1887197-42-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,8,8,7,1,9 and 7 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1887197-42:
(9*1)+(8*8)+(7*8)+(6*7)+(5*1)+(4*9)+(3*7)+(2*4)+(1*2)=243
243 % 10 = 3
So 1887197-42-3 is a valid CAS Registry Number.