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959978-19-9

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959978-19-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 959978-19-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,9,9,7 and 8 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 959978-19:
(8*9)+(7*5)+(6*9)+(5*9)+(4*7)+(3*8)+(2*1)+(1*9)=269
269 % 10 = 9
So 959978-19-9 is a valid CAS Registry Number.

959978-19-9Downstream Products

959978-19-9Relevant articles and documents

New [4.4]cyclophane diketals, monoketones, and diketones: Design, synthesis, and structural analysis

Bogdan, Niculina,Grosu, Ion,Condamine, Eric,Toupet, Lo?c,Ramondenc, Yvan,Silaghi-Dumitrescu, Ioan,Plé, Gérard,Bogdan, Elena

, p. 4674 - 4687 (2007)

The synthesis of some new [4.4]cyclophane diketals, monoketones, and diketones in good yields is reported along with the unusually low reactivity towards hydrolysis of the spiro-1,3-dioxane rings connected to the cyclophane bridges. The structural analysis carried out by X-ray diffraction, NMR spectroscopy, and mass spectrometry shows significant intraand intermolecular π-π and C-H-π interactions. The rotation of the aromatic rings and the flipping of the bridges have been investigated by molecular modeling and variable-temperature NMR experiments. Wiley-VCH Verlag GmbH & Co. KGaA, 2007.

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