105674-04-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 105674-04-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,6,7 and 4 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 105674-04:
(8*1)+(7*0)+(6*5)+(5*6)+(4*7)+(3*4)+(2*0)+(1*4)=112
112 % 10 = 2
So 105674-04-2 is a valid CAS Registry Number.
105674-04-2Relevant articles and documents
A direct preparation of 2-aryl-4-ethoxycarbonyl-3- pyrazolin-5-ones from aryl hydrazines
Taylor, Andrew W.,Cook, Richard T.
, p. 607 - 616 (2007/10/02)
Aryl hydrazines (1) possessing an electron-withdrawing substituent on the phenyl ring, on treatment with diethyl (ethoxymethylene)malonate in ethanolic sodium ethoxide solution, have directly afforded 2-aryl-4-ethoxy-carbonyl-3-pyrazolin-5-ones (4). Spect
