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80882-55-9

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80882-55-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 80882-55-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,8,8 and 2 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 80882-55:
(7*8)+(6*0)+(5*8)+(4*8)+(3*2)+(2*5)+(1*5)=149
149 % 10 = 9
So 80882-55-9 is a valid CAS Registry Number.

80882-55-9Downstream Products

80882-55-9Relevant articles and documents

The synthesis of 2-amino-4-(4-imidazolyl)pyridines

LaMattina

, p. 533 - 538 (2007/10/02)

A general synthetic scheme for the preparation of 2-amino-4-(4-imidazolyl)pyridines, potential histamine H2 antagonists, is described. The synthesis is based on the Neber rearrangement of 1-(4-pyridyl)-l-alkanone oxime O-tosylates to the appropriate α-aminoketones or α-aminoketals, which are then converted to the corresponding imidazoles. The reaction of Grignard reagents with 2-chloroisonicotinonitrile, as well as nucleophilic displacement of chloride by amines on 2-chloroisonicotinonitrile and derivatives, are discussed in relation to the preparation of the ketone intermediates.

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