180137-34-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 180137-34-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,0,1,3 and 7 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 180137-34:
(8*1)+(7*8)+(6*0)+(5*1)+(4*3)+(3*7)+(2*3)+(1*4)=112
112 % 10 = 2
So 180137-34-2 is a valid CAS Registry Number.
180137-34-2Relevant academic research and scientific papers
Synthesis of 2-(3-aryl-4-formylpyrazol-1-yl)-3-phenyl-1,8-naphthyridines
Rao, J. Sudhakar,Mogilaiah,Sreenivasulu
, p. 713 - 714 (2007/10/03)
2-(3-Aryl-4-formylpyrazol-1-yl)-3-phenyl-1,8-naphthyridines (3) have been synthesized by the reaction of acetophenone 3-phenyl-1,8-naphthyridin-2-ylhydrazones (2) with POCl3 and DMF. The intermediate hydrazones 2 in turn are prepared by the con