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117690-52-5

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117690-52-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117690-52-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,6,9 and 0 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 117690-52:
(8*1)+(7*1)+(6*7)+(5*6)+(4*9)+(3*0)+(2*5)+(1*2)=135
135 % 10 = 5
So 117690-52-5 is a valid CAS Registry Number.

117690-52-5Downstream Products

117690-52-5Relevant articles and documents

Leukotriene B4 Receptor Antagonists: The LY255283 Series of Hydroxyacetophenones

Herron, David K.,Goodson, Theodore,Bollinger, Nancy G.,Swanson-Bean, Dorothy,Wright, Ian G.,et al.

, p. 1818 - 1828 (2007/10/02)

A series of hydroxyacetophenones was prepared for evaluation as leukotriene B4 (LTB4) receptor antagonists, culminating in 1-oxy>phenyl>ethanone (compound 35, LY255283).Using an assay for inhibition of specific LTB4 binding to human PMN, we found that substitution of a nonpolar substituent in the 5-position was required for activity.Best activity was realized with hydrogen in the 3-position, hydroxyl in the 2-position, short chain alkyl ketone in the 1-position, and a six- or eight-carbon chain linking the oxygen in the 4-position with an unsaturated terminal function.Compound 35, having an IC50 of 87 nM in the binding assay, was chosen for further preclinical evaluation.

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