107903-37-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 107903-37-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,9,0 and 3 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 107903-37:
(8*1)+(7*0)+(6*7)+(5*9)+(4*0)+(3*3)+(2*3)+(1*7)=117
117 % 10 = 7
So 107903-37-7 is a valid CAS Registry Number.