128176-48-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128176-48-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,1,7 and 6 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 128176-48:
(8*1)+(7*2)+(6*8)+(5*1)+(4*7)+(3*6)+(2*4)+(1*8)=137
137 % 10 = 7
So 128176-48-7 is a valid CAS Registry Number.
128176-48-7Relevant academic research and scientific papers
The effect of propargyl oxygen substituents in the carbene-chromium/alkyne cycloaddition
Semmelhack,Jeong,Lee
, p. 609 - 610 (2007/10/02)
The usual reaction of alkynes with arylcarbene chromium complexes is deflected by the presence of propargylic alkoxy groups, especially in the case of the 2,5-dimethoxyphenyl carbene ligand; indenes and furans become significant products.
