81543-01-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81543-01-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,5,4 and 3 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 81543-01:
(7*8)+(6*1)+(5*5)+(4*4)+(3*3)+(2*0)+(1*1)=113
113 % 10 = 3
So 81543-01-3 is a valid CAS Registry Number.
InChI:InChI=1/C28H36O9/c1-14-17-13-33-23(30)20(17)22(31-7)16-11-18-25(5)9-10-27(32-8)36-24(3,4)28(25,37-27)19(34-15(2)29)12-26(18,6)35-21(14)16/h18-19H,9-13H2,1-8H3/t18-,19-,25-,26+,27+,28-/m1/s1