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6-amino-5-cyano-2-methoxycarbonylmethyl-4-p-tolyl-4H-pyran-3-carboxylic acid methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

547769-52-8

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547769-52-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 547769-52-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,7,7,6 and 9 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 547769-52:
(8*5)+(7*4)+(6*7)+(5*7)+(4*6)+(3*9)+(2*5)+(1*2)=208
208 % 10 = 8
So 547769-52-8 is a valid CAS Registry Number.

547769-52-8Relevant academic research and scientific papers

Synthesis of functionalized 4H-pyran and cyclohexanone derivatives via three-component reactions of dimethyl acetonedicarboxylate, aromatic aldehydes, and malononitrile

Heber, Dieter,Stoyanov, Edmont V.

, p. 227 - 232 (2007/10/03)

Dependent on the reaction time, the three-component condensation of dimethyl acetonedicarboxylate (1), aromatic aldehydes 2, and malononitrile (3) gives rise to 4H-pyran derivatives 5 after reflux for 15 min. Moreover, using excess of benzaldehyde and pro

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