139261-88-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139261-88-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,2,6 and 1 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 139261-88:
(8*1)+(7*3)+(6*9)+(5*2)+(4*6)+(3*1)+(2*8)+(1*8)=144
144 % 10 = 4
So 139261-88-4 is a valid CAS Registry Number.
InChI:InChI=1/C11H10BrNO2/c1-13-10(14)6-9(11(13)15)7-3-2-4-8(12)5-7/h2-5,9H,6H2,1H3