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857722-22-6

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857722-22-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 857722-22-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,7,2 and 2 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 857722-22:
(8*8)+(7*5)+(6*7)+(5*7)+(4*2)+(3*2)+(2*2)+(1*2)=196
196 % 10 = 6
So 857722-22-6 is a valid CAS Registry Number.

857722-22-6Relevant articles and documents

Regiospecific photoisomerization of fluorinated (E,E)-1,4-diphenyl-1,3- butadienes

Liu, Jin,Boarman, Kelly J.,Wendt, Natalie L.,Cardenas, Lina M.

, p. 4953 - 4956 (2007/10/03)

Photoisomerization of five fluorinated E,E-1-(R-phenyl)-4-phenyl-1,3- butadienes in solution (R = 1: p-monofluoro, 2: m,m′-difluoro, 3: m,m′,p-trifluoro, 4: o,o′,m,m′-tetrafluoro, 5: o,o′,m,m′,p-pentafluoro) was investigated via direct irradiation. Our results indicated that cis-trans photoisomerization of the fluorinated 1,4-diphenyl-1,3-butadienes in the excited singlet state took place exclusively at the CC bonds closer to the fluorine substituents.

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