81523-49-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81523-49-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,5,2 and 3 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 81523-49:
(7*8)+(6*1)+(5*5)+(4*2)+(3*3)+(2*4)+(1*9)=121
121 % 10 = 1
So 81523-49-1 is a valid CAS Registry Number.
InChI:InChI=1/C23H28N4O8S/c1-5-35-17-11-14(6-7-16(17)28)22(36(29,30)31)27-23-25-12-15(21(24)26-23)8-13-9-18(32-2)20(34-4)19(10-13)33-3/h6-7,9-12,22,28H,5,8H2,1-4H3,(H,29,30,31)(H3,24,25,26,27)