6904-11-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6904-11-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,9,0 and 4 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 6904-11:
(6*6)+(5*9)+(4*0)+(3*4)+(2*1)+(1*1)=96
96 % 10 = 6
So 6904-11-6 is a valid CAS Registry Number.