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6-Amino-5-cyano-4-o-tolyl-4H-pyran-2,3-dicarboxylic acid diethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

77151-40-7

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77151-40-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77151-40-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,1,5 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 77151-40:
(7*7)+(6*7)+(5*1)+(4*5)+(3*1)+(2*4)+(1*0)=127
127 % 10 = 7
So 77151-40-7 is a valid CAS Registry Number.

77151-40-7Downstream Products

77151-40-7Relevant academic research and scientific papers

CYCLIZATION REACTIONS OF NITRILES. II. REACTION OF ARYLIDENE AND FURFURYLIDENE DERIVATIVES OF MALONONITRILE WITH OXALOACETIC ESTER

Sharanin, Yu. A.

, p. 1866 - 1870 (2007/10/02)

The base-catalyzed reaction of arylidene and furfurylidene derivatives of malononitrile with oxaloacetic ester leads to the production of 4-substituted 2-amino-3-cyano-4-aryl-4H-pyran-5,6-dicarboxylic esters.In the case of 5-halogenofurfurylidenemalononitriles exchange of the halogen atom by the residue of the organic base and not cycloaddition predominates.

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