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74998-97-3

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74998-97-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74998-97-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,9,9 and 8 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 74998-97:
(7*7)+(6*4)+(5*9)+(4*9)+(3*8)+(2*9)+(1*7)=203
203 % 10 = 3
So 74998-97-3 is a valid CAS Registry Number.

74998-97-3Relevant academic research and scientific papers

Stannous Chloride Mediated Formation of (9-Anthryl)methyl Dimers from (Halogenomethyl)anthracenes. Ground-State and Adiabatic Excited-State Reversibility of Intramolecular Cycloadditions

Becker, Hans-Dieter,Andersson, Kjell,Sandros, Kjell

, p. 4549 - 4555 (2007/10/02)

9-(Halogenomethyl)anthracenes react with stannous chloride dihydrate in dioxane solution to give tetrabenzotetracyclotetradecatetraenes ("lepidopterenes") in excellent yields. The involvement of tin trihalides in the reaction is suggest

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