133993-26-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133993-26-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,9,9 and 3 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 133993-26:
(8*1)+(7*3)+(6*3)+(5*9)+(4*9)+(3*3)+(2*2)+(1*6)=147
147 % 10 = 7
So 133993-26-7 is a valid CAS Registry Number.