749251-98-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 749251-98-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,9,2,5 and 1 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 749251-98:
(8*7)+(7*4)+(6*9)+(5*2)+(4*5)+(3*1)+(2*9)+(1*8)=197
197 % 10 = 7
So 749251-98-7 is a valid CAS Registry Number.