431981-28-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 431981-28-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,1,9,8 and 1 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 431981-28:
(8*4)+(7*3)+(6*1)+(5*9)+(4*8)+(3*1)+(2*2)+(1*8)=151
151 % 10 = 1
So 431981-28-1 is a valid CAS Registry Number.
InChI:InChI=1/C16H18N2O2/c19-11-12-9-18(15-8-4-3-7-14(12)15)10-16(20)17-13-5-1-2-6-13/h3-4,7-9,11,13H,1-2,5-6,10H2,(H,17,20)