173208-53-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 173208-53-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,2,0 and 8 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 173208-53:
(8*1)+(7*7)+(6*3)+(5*2)+(4*0)+(3*8)+(2*5)+(1*3)=122
122 % 10 = 2
So 173208-53-2 is a valid CAS Registry Number.
173208-53-2Relevant articles and documents
Synthesis of 3-acetyl-4-hydroxy-1-phenylpyridin-2(1H)-one derivatives
Nikam,Kappe
, p. 215 - 220 (2015/01/30)
The cyclization of aryl ketone anilides 3 with diethyl malonate to affords 4-hydroxy-6-phenyl-6H-pyrano [3,2-c]-pyridin-2,5-diones 4 in good yields. 3-Acetyl-4-hydroxy-1-phenylpyridin-2(1H)-ones 5 are obtained by ring-opening reaction of 4-hydroxy-6-pheny
