126691-26-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 126691-26-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,6,9 and 1 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 126691-26:
(8*1)+(7*2)+(6*6)+(5*6)+(4*9)+(3*1)+(2*2)+(1*6)=137
137 % 10 = 7
So 126691-26-7 is a valid CAS Registry Number.