23509-21-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23509-21-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,5,0 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 23509-21:
(7*2)+(6*3)+(5*5)+(4*0)+(3*9)+(2*2)+(1*1)=89
89 % 10 = 9
So 23509-21-9 is a valid CAS Registry Number.
InChI:InChI=1/C32H44N2O6/c1-18-19(2)33-20(3)26(18)27(36)39-21(4)23-9-10-31-24-8-7-22-15-30(37)12-11-28(22,5)32(24,40-30)25(35)16-29(23,31)17-34(6)13-14-38-31/h8-9,21-22,25,33,35,37H,7,10-17H2,1-6H3/t21?,22-,25-,28+,29?,30+,31?,32?/m1/s1