7726-12-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7726-12-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,7,2 and 6 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 7726-12:
(6*7)+(5*7)+(4*2)+(3*6)+(2*1)+(1*2)=107
107 % 10 = 7
So 7726-12-7 is a valid CAS Registry Number.