42497-92-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42497-92-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,4,9 and 7 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 42497-92:
(7*4)+(6*2)+(5*4)+(4*9)+(3*7)+(2*9)+(1*2)=137
137 % 10 = 7
So 42497-92-7 is a valid CAS Registry Number.
42497-92-7Relevant articles and documents
The reaction of 1-nitro-4-(4-nitrophenylsulfonylmethyl)benzene with α,β-unsaturated esters
Guoren,Zheng
, p. 2003 - 2008 (1996)
Under solid-liquid PTC conditions, treatment of 1-nitro-4-(4-nitrophenylsulfonylmethyl)benzene (1) with α,β-unsaturated esters (2a-h) at 35-75°C gave tandem addition-rearrangement products (3a-h). While at higher temperature (75°C), addition-rearrangement
