5399-43-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5399-43-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,3,9 and 9 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 5399-43:
(6*5)+(5*3)+(4*9)+(3*9)+(2*4)+(1*3)=119
119 % 10 = 9
So 5399-43-9 is a valid CAS Registry Number.
InChI:InChI=1/C12H10N4S/c1-8-14-11-10(12(17)15-8)7-13-16(11)9-5-3-2-4-6-9/h2-7,13H,1H3