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128802-69-7

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128802-69-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128802-69-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,8,0 and 2 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 128802-69:
(8*1)+(7*2)+(6*8)+(5*8)+(4*0)+(3*2)+(2*6)+(1*9)=137
137 % 10 = 7
So 128802-69-7 is a valid CAS Registry Number.

128802-69-7Relevant articles and documents

Synthesis of a hematoside analog containing phytosphingosine and α-hydroxfatty acid

Sugata, Tetsuji,Kan, Yoko,Nagaregawa, Yoshiteru,Miyamoto, Tomofumi,Higuchi, Ryuichi

, p. 917 - 925 (2007/10/03)

The hematoside analog 1 [NeuGcα(2→3)Galβ(1→4)Glcβ(1→1)Cer], which contains a phytosphingosine as a sphingoid base and an α-hydroxyfatty acid, has been synthesized. Coupling of the methyl (methyl 5-benzyloxyacetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-2-thio-D-glycero- α-and -β-D-galacto-2-nonulopyranosid)onate 5, prepared from the corresponding 5-acetamido derivative 2, with a lactose derivative 6 afforded sialolactoside 7, which was converted to the corresponding trichloroacetimidate 10. Glycosylation of 10 with the ceramide tribenzoate 12 gave the protected hematoside analog 13, which was deprotected to the hematoside analog 1.

Biologically Active Glycosides from Asteroidea, XXIII. Synthesis of Acanthacerebroside A

Sugiyama, Shigeo,Honda, Masanori,Komori, Tetsuya

, p. 1063 - 1068 (2007/10/02)

(R)-2-Hydroxytetracosanoic acid (2), prepared by using the chiral building block benzyl (R)-2,3-epoxypropyl ether (7), was coupled to (2S,3S,4R)-2-amino-1,3,4-hexadecanetriol (3) to give the ceramide 4.Glycosidation of 4 with D-glucopyranose affords acant

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