186754-56-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 186754-56-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,6,7,5 and 4 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 186754-56:
(8*1)+(7*8)+(6*6)+(5*7)+(4*5)+(3*4)+(2*5)+(1*6)=183
183 % 10 = 3
So 186754-56-3 is a valid CAS Registry Number.
186754-56-3Relevant academic research and scientific papers
Cycloaromatization of a solvolytically generated ene-yne-allene
Cunico, Robert F.,Nair, Sajiv K.
, p. 25 - 28 (2007/10/03)
The diethylphosphate ester of 1-(2-ethynylphenyl)-4-trimethylsilyl-4-(trimethylsilyloxy)-2-pentyn-1- ol solvolyzes in 9:1 THF-H2O to afford 5-(2-ethynylphenyl)-3-trimethylsilyl-3,4-pentadien-2-one which cyclizes in situ to 1-(2-naphthyl)-1-trimethylsilyl-2-propanone.
