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104873-97-4

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104873-97-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 104873-97-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,8,7 and 3 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 104873-97:
(8*1)+(7*0)+(6*4)+(5*8)+(4*7)+(3*3)+(2*9)+(1*7)=134
134 % 10 = 4
So 104873-97-4 is a valid CAS Registry Number.

104873-97-4Downstream Products

104873-97-4Relevant articles and documents

Molecular Complexes of Cyclophanes. Part VII: Complexation between Para- and (1,2,4) Cyclophanes with 7,7,8,8-Tetracyanoquinodimethane

Mourad, Aboul-fetouh E.

, p. 187 - 192 (2007/10/02)

The characteristic charge-transfer absorption bands of some para- as well as (1,2,4)cyclophanes as donors with 7,7,8,8-tetracyanoquinodimethane (TCNQ) as acceptor have been determined in methylene chloride solution in the visible regions.The positions of λmax of the longest wavelength charge-transfer band, molar extinction coefficients, association constants and transition energies of the complexes formed have been determined spectrophotometrically.A comparison between the acceptor character of TCNQ and tetracyanoethylene (TCNE) as well as tetrahalo-1,4-benzoquinones was reported.The relative basicity of the electron donors under investigation has been discussed.

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