149997-05-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 149997-05-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,9,9 and 7 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 149997-05:
(8*1)+(7*4)+(6*9)+(5*9)+(4*9)+(3*7)+(2*0)+(1*5)=197
197 % 10 = 7
So 149997-05-7 is a valid CAS Registry Number.
InChI:InChI=1/C20H25N3O.C6H8O7/c1-21-14-13-19(16-22(21)2)23(18-11-7-4-8-12-18)20(24)15-17-9-5-3-6-10-17;7-3(8)1-6(13,5(11)12)2-4(9)10/h3-12,19H,13-16H2,1-2H3;13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)