4173-73-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4173-73-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,1,7 and 3 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 4173-73:
(6*4)+(5*1)+(4*7)+(3*3)+(2*7)+(1*3)=83
83 % 10 = 3
So 4173-73-3 is a valid CAS Registry Number.
InChI:InChI=1/C17H15N3O/c1-13-16(12-18-14-8-4-2-5-9-14)17(21)20(19-13)15-10-6-3-7-11-15/h2-12,18H,1H3/b16-12+
4173-73-3Relevant articles and documents
β,β-Diacyl-enamines and -enoles, 6: An Efficient Synthesis of Aminoalkylidene Derivatives Fivemembered Active Methylene Compounds
Wolfbeis, Otto S.
, p. 369 - 384 (2007/10/02)
Trimethyl orthoacetate, orthopropionate or orthobenzoate in contrast to orthoformiate do not undergo a three component condensation with anilines and cyclic sixmembered active methylene compounds to the corresponding N-substituted aminomethylene derivativ