120749-57-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 120749-57-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,0,7,4 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 120749-57:
(8*1)+(7*2)+(6*0)+(5*7)+(4*4)+(3*9)+(2*5)+(1*7)=117
117 % 10 = 7
So 120749-57-7 is a valid CAS Registry Number.