75787-91-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75787-91-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,7,8 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 75787-91:
(7*7)+(6*5)+(5*7)+(4*8)+(3*7)+(2*9)+(1*1)=186
186 % 10 = 6
So 75787-91-6 is a valid CAS Registry Number.