6527-59-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6527-59-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,5,2 and 7 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 6527-59:
(6*6)+(5*5)+(4*2)+(3*7)+(2*5)+(1*9)=109
109 % 10 = 9
So 6527-59-9 is a valid CAS Registry Number.