137348-25-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137348-25-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,3,4 and 8 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 137348-25:
(8*1)+(7*3)+(6*7)+(5*3)+(4*4)+(3*8)+(2*2)+(1*5)=135
135 % 10 = 5
So 137348-25-5 is a valid CAS Registry Number.
InChI:InChI=1/C24H26N4O4/c1-16(23(31)28-20(15-22(30)25-3)19-12-8-5-9-13-19)26-24(32)21(27-17(2)29)14-18-10-6-4-7-11-18/h4-16H,1-3H3,(H,25,30)(H,26,32)(H,27,29)(H,28,31)/b20-15+,21-14+