1493783-91-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1493783-91-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,9,3,7,8 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1493783-91:
(9*1)+(8*4)+(7*9)+(6*3)+(5*7)+(4*8)+(3*3)+(2*9)+(1*1)=217
217 % 10 = 7
So 1493783-91-7 is a valid CAS Registry Number.