81173-67-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81173-67-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,1,7 and 3 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81173-67:
(7*8)+(6*1)+(5*1)+(4*7)+(3*3)+(2*6)+(1*7)=123
123 % 10 = 3
So 81173-67-3 is a valid CAS Registry Number.
InChI:InChI=1/C19H23N4.CH4O4S/c1-23(2,3)19-12-10-17(11-13-19)16-21-22(15-7-14-20)18-8-5-4-6-9-18;1-5-6(2,3)4/h4-6,8-13,16H,7,15H2,1-3H3;1H3,(H,2,3,4)/q+1;/p-1