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77541-55-0

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77541-55-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77541-55-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,5,4 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 77541-55:
(7*7)+(6*7)+(5*5)+(4*4)+(3*1)+(2*5)+(1*5)=150
150 % 10 = 0
So 77541-55-0 is a valid CAS Registry Number.

77541-55-0Downstream Products

77541-55-0Relevant articles and documents

1H- AND 13C-NMR STUDY OF (X-PHENYL)-5-NITRO-2-FURYLVINYL ETHERS

Dandarova, Miloslava,Kovac, Jaroslav,Vegh, Daniel

, p. 3557 - 3563 (2007/10/02)

Reaction of 5-nitro-2-furylvinyltrimethylammonium bromide with substituted phenolates gave (E)- and (Z)-(X-phenyl)-5-nitro-2-furylvinyl ethers.The preffered s-cis and s-trans orientations of the furan ring in Z and E isomers, respectively, were determined by 1H-NMR spectroscopy.To study the extent of p-? conjugation, 13C-NMR spectra of compounds under investigation have also been measured and interpreted.Chemical shifts for ethylenic carbons and protons were correlated with Hammett ? constants.

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