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104178-99-6

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104178-99-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 104178-99-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,1,7 and 8 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 104178-99:
(8*1)+(7*0)+(6*4)+(5*1)+(4*7)+(3*8)+(2*9)+(1*9)=116
116 % 10 = 6
So 104178-99-6 is a valid CAS Registry Number.

104178-99-6Downstream Products

104178-99-6Relevant articles and documents

Intermediate in Sommelet-Hauser Rearrangement of N,N-Dimethylbenzylammonium N-Methylides

Shirai, Naohiro,Watanabe, Yoko,Sato, Yoshiro

, p. 2767 - 2770 (2007/10/02)

Formation of benzylammonium N-methylides by fluoride anion induced desilylation of dimethyl(4-substituted benzyl)ammonium halides (1) and 3-substituted benzyl analogues (6) was examined to isolate 5--6-methylene-1,3-cyclohexadienes (isotoluene intermediates, 3,8,10) in the Sommelet-Hauser rearrangement.Some isotoluenes were isolated and their structures were confirmed by 1H NMR analysis.The stability of the isotoluenes was dependent on the electron-donating effects of the substituents on the conjugated bonds, and 3-methoxy-substituted isotoluene 3a was the most stable compound studied.

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