140890-71-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 140890-71-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,8,9 and 0 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 140890-71:
(8*1)+(7*4)+(6*0)+(5*8)+(4*9)+(3*0)+(2*7)+(1*1)=127
127 % 10 = 7
So 140890-71-7 is a valid CAS Registry Number.
InChI:InChI=1/C23H23F2NO.C4H4O4/c1-2-26(15-14-18-6-4-3-5-7-18)27-17-20-10-13-22(25)16-23(20)19-8-11-21(24)12-9-19;5-3(6)1-2-4(7)8/h3-13,16H,2,14-15,17H2,1H3;1-2H,(H,5,6)(H,7,8)/b;2-1-