90344-47-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90344-47-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,3,4 and 4 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 90344-47:
(7*9)+(6*0)+(5*3)+(4*4)+(3*4)+(2*4)+(1*7)=121
121 % 10 = 1
So 90344-47-1 is a valid CAS Registry Number.