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3-(2,4-Dinitro-phenyl)-6,7,8,9-tetrahydro-pyrido[1,2-a]pyrimidin-4-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

71166-29-5

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71166-29-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71166-29-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,1,6 and 6 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 71166-29:
(7*7)+(6*1)+(5*1)+(4*6)+(3*6)+(2*2)+(1*9)=115
115 % 10 = 5
So 71166-29-5 is a valid CAS Registry Number.

71166-29-5Relevant academic research and scientific papers

Nitrogen Bridgehead Compounds. Part 30. Vilsmeier-Haack Formylation of 6,7,8,9-Tetrahydro-4H-pyridopyrimidin-4-ones

Horvath, Agnes,Hermecz, Istvan,Vasvari-Debreczy, Lelle,Simon, Kalman,Pongor-Csakvari, Marianne,et al.

, p. 369 - 378 (2007/10/02)

Depending on the substituents at C(3) and on the reaction conditions, Vilsmeier-Haack formylation (POCl3-DMF) of 6,7,8,9-tetrahydro-4H-pyridopyrimidin-4-ones (I) led to 9-(dimethylaminomethylene)- or 9-(ethoxymethylene)-6,7,8,9-tetrahydro-4H-pyrido

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