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140711-81-5

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140711-81-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 140711-81-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,7,1 and 1 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 140711-81:
(8*1)+(7*4)+(6*0)+(5*7)+(4*1)+(3*1)+(2*8)+(1*1)=95
95 % 10 = 5
So 140711-81-5 is a valid CAS Registry Number.

140711-81-5Downstream Products

140711-81-5Relevant articles and documents

A novel class of platelet activating factor (PAF) antagonists. II. Modification of the 2-position of the glycerol backbone of PAF-sulfonamide isosteres

Tsuri,Matsui,Haga,Kamata,Haghishita,Takahashi,Kakushi,Uchida,Katakeyama,Kurosawa

, p. 85 - 95 (2007/10/02)

In a continuing effort to obtain more potent platelet activating factor (PAF) antagonists, we tried to synthesize a series of PAF-sulfonamide isosteres in which the substituent at the 2-position was modified to an acetoxy equivalent other than the methoxy group. These modifications produced highly active PAF antagonists. Compound 3-[2-(5-methyl-2H-tetrazol-2-yl)-3-(octadecylcarbamoyloxy)propylaminosu lfonyl]propylquinolinium iodide (52) showed the most potent activity in the in vitro inhibitory effect on PAF-induced platelet aggregation in rabbit platelet-rich plasma (IC50 = 125 nm) and also in the in vivo protective effect on PAF-induced lethality in mice, with prolonged duration of action. Optically active enantiomers of this compound were synthesized and the (S)-(-)-isomer (IC50 = 87 nM) was found to be three times more potent that the (R)-(+)-isomer (IC50 = 289nM), clearly exemplifying the enantioselectivity in the PAF-antagonist action of this novel compound.

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