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80826-87-5

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80826-87-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 80826-87-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,8,2 and 6 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 80826-87:
(7*8)+(6*0)+(5*8)+(4*2)+(3*6)+(2*8)+(1*7)=145
145 % 10 = 5
So 80826-87-5 is a valid CAS Registry Number.

80826-87-5Relevant articles and documents

PERTURBATION OF THE FUCHSONE CHROMOPHORE BY 3,5-METHYL SUBSTITUTION. STERICALLY CROWDED EXOCYCLIC DOUBLE BOND

Koutek, Bohumir,Musil, Lubomir,Velek, Jiri,Lycka, Antonin,Snobl, Dobroslav,et al.

, p. 2540 - 2556 (2007/10/02)

Several 3,5-methyl substituted fuchsones have been synthesized and characterized by means of UV and NMR spectroscopy as well as dipole moment measurements.Two basic types of behaviour of the longest wavelength band have been found for these derivatives in comparison to 2,6-substituted analogues i.e. hypochromic effect and bathochromic shift.These effects can be attributed to a steric crowding of the C(4)-C(7) double bonds.The role of the steric interactions in the ground state and in the excited state is discussed.

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