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98009-23-5

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98009-23-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98009-23-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,0,0 and 9 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 98009-23:
(7*9)+(6*8)+(5*0)+(4*0)+(3*9)+(2*2)+(1*3)=145
145 % 10 = 5
So 98009-23-5 is a valid CAS Registry Number.

98009-23-5Relevant articles and documents

TOTAL SYNTHESIS OF LIPOXINS A4 AND B4 FROM D-ISOASCORBIC ACID

Gravier-Pelletier, C.,Dumas, J.,Merrer, Y. Le,Depezay, J. C.

, p. 1165 - 1168 (2007/10/02)

A total convergent synthesis of lipoxins A4 and B4 has been carried out via four optically pure α-hydroxy and α,β-dihydroxyaldehydes, obtained from D-isoascorbic acid as a single starting material.Connection by a six carbons unit uses Wittig-type reaction

TOTAL SYNTHESIS OF LIPOXIN B: ASSIGNMENT OF STEREOCHEMISTRY

Leblanc, Yves,Fitzsimmons, Brian,Adams, Julian,Rokach, Joshua

, p. 1399 - 1402 (2007/10/02)

Four isomers of lipoxin B were synthesized using carbohydrate precursors.An authentic sample of lipoxin B (from human leukocytes) was found to be a mixture of all-trans isomers 1a and 1c.

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