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91289-96-2

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91289-96-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91289-96-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,2,8 and 9 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 91289-96:
(7*9)+(6*1)+(5*2)+(4*8)+(3*9)+(2*9)+(1*6)=162
162 % 10 = 2
So 91289-96-2 is a valid CAS Registry Number.

91289-96-2Relevant articles and documents

Electron Rich Heterocycles as Donor Groups in Fluorescent Dyes

Fritzsche, Katharina,Langhals, Heinz

, p. 2275 - 2286 (2007/10/02)

The synthesis of N-methylphthalimides substituted with the donor groups pyrazole, triazole, benzotriazole, and naphthotriazole in position 4 is described (17, 18, 14, 12).The substituent constants of these groups are obtained by alkaline hydrolysis of the corresponding phthalimide dyes.Their solvatochromism in absorption and fluorescence gives information about charge distribution in ground- and excited state.

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