123771-68-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123771-68-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,7,7 and 1 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 123771-68:
(8*1)+(7*2)+(6*3)+(5*7)+(4*7)+(3*1)+(2*6)+(1*8)=126
126 % 10 = 6
So 123771-68-6 is a valid CAS Registry Number.