128176-36-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128176-36-3 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, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 128176-36:
(8*1)+(7*2)+(6*8)+(5*1)+(4*7)+(3*6)+(2*3)+(1*6)=133
133 % 10 = 3
So 128176-36-3 is a valid CAS Registry Number.
128176-36-3Relevant academic research and scientific papers
Approach to the synthesis of nogalarol via the cycloaddition of a carbene-chromium complex with a functionalized alkyne
Semmelhack,Jeong, Nakcheol
, p. 605 - 608 (2007/10/02)
The alkyne, 4, prepared stereoselectively in 7 steps from acetyl furan, reacts with (methoxy)(phenyl)carbenepentacarbonylchromium(0), 15, to give the model (16) for nogalarol (1b) in 43% yield.
