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77965-69-6

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77965-69-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77965-69-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,9,6 and 5 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 77965-69:
(7*7)+(6*7)+(5*9)+(4*6)+(3*5)+(2*6)+(1*9)=196
196 % 10 = 6
So 77965-69-6 is a valid CAS Registry Number.

77965-69-6Downstream Products

77965-69-6Relevant articles and documents

Mechanism of the Fujiwara Reaction: Structural Investigation of Reaction Products from Benzotrichloride.

Uno, Toyozo,Okumura, Kazuo,Kuroda, Yoshihiro

, p. 3175 - 3178 (1981)

The mechanism of color development and the structures of chromophores of the Fujiwara reaction have been investigated by using benzotrichloride as a chromogenic reagent.Two products were isolated.NMR and mass spectroscopic investigation indicates that one of them is N2--N1-(1,3-butadienyl)benzamidine and that the other is N-benzenecarboxamide.In alkaline media, the former develops an intense red color; the latter becomes yellow.The formation of these chromophores is explained by the hydrolytic scission of pyridine rings in the benzal dipyridinium cation intermediate.

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