26621-64-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 26621-64-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,6,2 and 1 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 26621-64:
(7*2)+(6*6)+(5*6)+(4*2)+(3*1)+(2*6)+(1*4)=107
107 % 10 = 7
So 26621-64-7 is a valid CAS Registry Number.