934189-74-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 934189-74-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,4,1,8 and 9 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 934189-74:
(8*9)+(7*3)+(6*4)+(5*1)+(4*8)+(3*9)+(2*7)+(1*4)=199
199 % 10 = 9
So 934189-74-9 is a valid CAS Registry Number.