127143-40-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 127143-40-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,1,4 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 127143-40:
(8*1)+(7*2)+(6*7)+(5*1)+(4*4)+(3*3)+(2*4)+(1*0)=102
102 % 10 = 2
So 127143-40-2 is a valid CAS Registry Number.
127143-40-2Relevant academic research and scientific papers
A Convenient Synthesis of 3-Chloro-3,4-dihydro-4-hydroxy-3-nitro-2-phenyl-2H-1-benzopyrans
Dauzonne, Daniel,Demerseman, Pierre
, p. 66 - 70 (2007/10/02)
The novel title compounds 5 are prepared by a simple and efficient two-step procedure starting from substituted benzaldehydes 1.A convenient route to the (2-chloro-2-nitroethenyl)benzenes 3 required as intermediates in the synthesis is reported.
