873402-91-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 873402-91-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,3,4,0 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 873402-91:
(8*8)+(7*7)+(6*3)+(5*4)+(4*0)+(3*2)+(2*9)+(1*1)=176
176 % 10 = 6
So 873402-91-6 is a valid CAS Registry Number.