748751-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 748751-91-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,8,7,5 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 748751-91:
(8*7)+(7*4)+(6*8)+(5*7)+(4*5)+(3*1)+(2*9)+(1*1)=209
209 % 10 = 9
So 748751-91-9 is a valid CAS Registry Number.