81320-31-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81320-31-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,3,2 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 81320-31:
(7*8)+(6*1)+(5*3)+(4*2)+(3*0)+(2*3)+(1*1)=92
92 % 10 = 2
So 81320-31-2 is a valid CAS Registry Number.
InChI:InChI=1/C20H24N2O2.2C4H4O4/c1-21-12-14-22(15-13-21)11-10-18-16-6-2-3-7-17(16)23-19-8-4-5-9-20(19)24-18;2*5-3(6)1-2-4(7)8/h2-9,18H,10-15H2,1H3;2*1-2H,(H,5,6)(H,7,8)/b;2*2-1+