135182-19-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 135182-19-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,1,8 and 2 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 135182-19:
(8*1)+(7*3)+(6*5)+(5*1)+(4*8)+(3*2)+(2*1)+(1*9)=113
113 % 10 = 3
So 135182-19-3 is a valid CAS Registry Number.
135182-19-3Relevant academic research and scientific papers
A Convenient Synthesis of 2-Arylidene-3,8-dihydro-2H-cycloheptafuran-3,8-diones
Jin, Zhong-Tian,Liu, Zhong,Imafuku, Kimiaki
, p. 811 - 812 (2007/10/02)
3-(2-Bromoacetyl)tropolone (1) reacted with several benzaldehydes 2a-e to afford 2-arylidene-3,8-dihydro-2H-cycloheptafuran-3,8-diones 3a-e in very good yield.
