139424-39-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139424-39-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,4,2 and 4 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 139424-39:
(8*1)+(7*3)+(6*9)+(5*4)+(4*2)+(3*4)+(2*3)+(1*9)=138
138 % 10 = 8
So 139424-39-8 is a valid CAS Registry Number.
InChI:InChI=1/C26H30N4O4/c1-17(2)23(26(34)29-21(24(32)27-4)15-19-11-7-5-8-12-19)30-25(33)22(28-18(3)31)16-20-13-9-6-10-14-20/h5-17,23H,1-4H3,(H,27,32)(H,28,31)(H,29,34)(H,30,33)/b21-15+,22-16+