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195323-41-2

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195323-41-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 195323-41-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,5,3,2 and 3 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 195323-41:
(8*1)+(7*9)+(6*5)+(5*3)+(4*2)+(3*3)+(2*4)+(1*1)=142
142 % 10 = 2
So 195323-41-2 is a valid CAS Registry Number.

195323-41-2Relevant articles and documents

Synthetic studies on selectin ligands/inhibitors: A systematic sysnthersis of sulfatide and its higher congeners carrying 2-(tetradecyl)hexadecyl group as a ceramide substitute

Tanahashi, Eiji,Murase, Katsutoshi,Shibuya, Mika,Igarashi, Yumie,Ishida, Hideharu,Hasegawa, Akira,Kiso, Makoto

, p. 831 - 858 (2007/10/03)

A systematic synthesis of sulfatide (I) and novel sulfatide analogs (II-VI) carrying 2-(tetradecyl)hexadecyl group as a ceramide substitute is described. The 3-O-, 4-O-and 3,4-di-O-levulinoyl derivatives of galactopyranosyl trichloroacetimidates (1, 12, and 13) were coupled with (2S,3R,4E)-3-O-acetyl-2-octadecanamido-4-octadecene-1,3-diol or 2-(tetradecyl)hexadecan-1-ol. The resulting glycolipids (2, 4, 14, and 15) were each transformed, by selective removal of the levulinoyl group(s), and successive sulfation and de-O-acylation, into the 3-sulfates (I, II), 4-sulfate (III), and 3,4-disulfate (IV). The 6-sulfate (V) was prepared from 2-(tetradecyl)hexadecyl β-D-galactopyranoside (21) via the 6-0-t-butyldimethylsilyl derivative, while the 3'-sulfate of 2-(tetradecyl)hexadecyl β-D-lactoside (VI) was synthesized from 2-(trimethylsilyl)ethyl 3'-O-benzyl-β-D-lactoside (26). The structures of the sulfated glycolipids (I-VI) were characterized by ion-spray MS, MS/MS, and 1H NMR spectrometry.

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