190437-54-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 190437-54-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,0,4,3 and 7 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 190437-54:
(8*1)+(7*9)+(6*0)+(5*4)+(4*3)+(3*7)+(2*5)+(1*4)=138
138 % 10 = 8
So 190437-54-8 is a valid CAS Registry Number.