67389-43-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 67389-43-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,3,8 and 9 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 67389-43:
(7*6)+(6*7)+(5*3)+(4*8)+(3*9)+(2*4)+(1*3)=169
169 % 10 = 9
So 67389-43-9 is a valid CAS Registry Number.
InChI:InChI=1/C16H10N3O4S/c17-18-14-9-8-12-13(16(14)21)2-1-3-15(12)24(22,23)19-10-4-6-11(20)7-5-10/h1-9,14H/q-1/p+1