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4-Hydroxy-3-((E)-3-hydroxy-4,6-dimethyl-oct-4-enoyl)-1-(tetrahydro-pyran-2-yloxy)-5-[4-(tetrahydro-pyran-2-yloxy)-phenyl]-1H-pyridin-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

81802-25-7

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81802-25-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81802-25-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,8,0 and 2 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 81802-25:
(7*8)+(6*1)+(5*8)+(4*0)+(3*2)+(2*2)+(1*5)=117
117 % 10 = 7
So 81802-25-7 is a valid CAS Registry Number.

81802-25-7Relevant academic research and scientific papers

Synthesis of Racemic Tenellin

Williams, David R.,Sit, Sing-Yuen

, p. 2846 - 2851 (2007/10/02)

Total synthesis of racemic tenellin, a yellow pigment of the insect pathogenic fungus Beauveria, has been accomplished.Preparation of 1,4-dihydroxy-5-(p-hydroxyphenyl)-2(1H)-pyridinone is achieved in excellent overall yield by utilizing an intramolecular C-acylation of an imidazolide precursor.A facile conjugate reduction of the vinylogous amide 6 is illustrated with sodium cyanoborohydride.

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