838866-31-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 838866-31-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,3,8,8,6 and 6 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 838866-31:
(8*8)+(7*3)+(6*8)+(5*8)+(4*6)+(3*6)+(2*3)+(1*1)=222
222 % 10 = 2
So 838866-31-2 is a valid CAS Registry Number.