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173289-76-4

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173289-76-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 173289-76-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,2,8 and 9 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 173289-76:
(8*1)+(7*7)+(6*3)+(5*2)+(4*8)+(3*9)+(2*7)+(1*6)=164
164 % 10 = 4
So 173289-76-4 is a valid CAS Registry Number.

173289-76-4Relevant articles and documents

Synthesis of 10(S)-hydroxyeicosatetraenoic acid: A novel cytochrome P-450 metabolite of arachidonic acid

Yeola, Suresh N.,Saleh, Samir A.,Brash, Alan R.,Prakash, Chandra,Taber, Douglass F.,Blair, Ian A.

, p. 838 - 841 (2007/10/03)

10(S)-(-)-hydroxyeicosa-5(Z),8(Z),11(Z),14(Z)-tetraenoic acid methyl ester (2) was synthesized in eight steps starting from enantiomerically pure (R)-glyceraldehyde acetonide. The 10(R)-(±)enantiomer was prepared using an identical method except that the starting material was (S)-glyceraldehyde acetonide. By use of these authentic standards, it was possible to confirm that arachidonic acid was converted to a mixture of 10(S)-(-)-hydroxyeicosa-5(Z),8(Z),11(Z),14(Z)-tetraenoic acid (1) and the 10(R)-(+)-enantiomer by phenobarbital-induced rat liver microsomes.

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