1806838-88-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1806838-88-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,8,0,6,8,3 and 8 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1806838-88:
(9*1)+(8*8)+(7*0)+(6*6)+(5*8)+(4*3)+(3*8)+(2*8)+(1*8)=209
209 % 10 = 9
So 1806838-88-9 is a valid CAS Registry Number.