131013-81-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131013-81-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,0,1 and 3 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 131013-81:
(8*1)+(7*3)+(6*1)+(5*0)+(4*1)+(3*3)+(2*8)+(1*1)=65
65 % 10 = 5
So 131013-81-5 is a valid CAS Registry Number.
InChI:InChI=1/C16H12N4O9S2.3C4H12N/c21-15-13(18-17-9-1-5-11(6-2-9)30(24,25)26)14(16(22)23)19-20(15)10-3-7-12(8-4-10)31(27,28)29;3*1-5(2,3)4/h1-8,13H,(H,22,23)(H,24,25,26)(H,27,28,29);3*1-4H3/q;3*+1/b18-17+;;;