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1259901-52-4

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1259901-52-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1259901-52-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,9,9,0 and 1 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1259901-52:
(9*1)+(8*2)+(7*5)+(6*9)+(5*9)+(4*0)+(3*1)+(2*5)+(1*2)=174
174 % 10 = 4
So 1259901-52-4 is a valid CAS Registry Number.

1259901-52-4Downstream Products

1259901-52-4Relevant articles and documents

Bipiridine derivative and organic electroluminescence element containing the same

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Page/Page column 41, (2011/02/18)

The present invention provides a new bipyridine derivative which is suitable for an electron transport material of an organic electronics element and which has bipyridyl central rings as a core, and further provides an organic electroluminescence element containing the derivative. The bipyridine derivative is expressed by the following general formula. (where A1, A2: represent an aromatic heterocyclic group (except for a carbazolyl group) and an aromatic hydrocarbon group and the aromatic heterocyclic group may be combined; a, b = 1 or 2; Ar1, Ar2: represent a divalent or trivalent aromatic hydrocarbon group which may be substituted by hydrogen atom, an alkyl group, a cycloalkyl group, or an alkoxy group; B1, B2: represent hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, an aromatic hydrocarbon group, or an aromatic heterocyclic group; and ring E1, ring E2: represent a pyridine ring, and may have hydrogen atom, an alkyl group, a cycloalkyl group, or an alkoxy group.), which is used as an electron transport material.

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