90666-72-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90666-72-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,6,6 and 6 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 90666-72:
(7*9)+(6*0)+(5*6)+(4*6)+(3*6)+(2*7)+(1*2)=151
151 % 10 = 1
So 90666-72-1 is a valid CAS Registry Number.
InChI:InChI=1/C18H12N4O3/c23-16-11-5-1-3-7-13(11)20-18-21-15(9-10-22(16)18)19-14-8-4-2-6-12(14)17(24)25/h1-10H,(H,24,25)(H,19,20,21)