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55018-48-9

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55018-48-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55018-48-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,0,1 and 8 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 55018-48:
(7*5)+(6*5)+(5*0)+(4*1)+(3*8)+(2*4)+(1*8)=109
109 % 10 = 9
So 55018-48-9 is a valid CAS Registry Number.

55018-48-9Relevant articles and documents

S-ANTIGEN TRANSPORT INHIBITING OLIGONUCLEOTIDE POLYMERS AND METHODS

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Paragraph 0057; 0348, (2021/06/22)

Various embodiments provide STOPS? polymers that are S-antigen transport inhibiting oligonucleotide polymers, processes for making them and methods of using them to treat diseases and conditions. In some embodiments the STOPS? modified oligonucleotides include an at least partially phosphorothioated sequence of alternating A and C units having modifications as described herein. The sequence independent antiviral activity against hepatitis B of embodiments of STOPS? modified oligonucleotides, as determined by HBsAg Secretion Assay, is an EC50 that is less than 100 nM.

Synthesis and characterization of authentic standards for the analysis of ribofuranose-containing carbohydrates by the reductive-cleavage method

Rozanas, Christine R.,Wang, Nan,Vidlock, Kathy,Gray, Gary R.

, p. 99 - 110 (2007/10/02)

Described herein is the synthesis of all positional isomers of partially methylated and acetylated or benzoylated 1,4-anhydro-D-ribitol.The benzoates are generated simultaneously from 1,4-anhydro-D-ribitol by sequential partial methylation and benzoylation or sequential partial benzoylation and methylation.The individual isomers are obtained in pure form by high-performance liquid chromatography.Debenzoylation and acetylation provided the corresponding acetates.Reported herein are the 1H NMR spectra of the benzoates and the electron-ionization mass spectra of the acetates and the tri-O-methyl derivative and also for the acetates and the tri-O-methyl derivative, their linear temperature programmed gas-liquid chromatography retention indices on three different capillary columns.Keywords: Reductive-cleavage; D-Ribitol, 1,4-anhydro, partially methylated and acylated

Transformations of β-Glycofuranosyl Isocyanides into Tetrahydrofurans

Hiebl, Johann,Zbiral, Erich

, p. 683 - 690 (2007/10/02)

Readily available β-glycofuranosyl isocyanides 1, 2, 4, 5, 6, 18, 19, 20 are transformed into the corresponding protected tetrahydrofurans 21, 22, 23, 24, 25, 26 by means of tributyltin hydride and AIBN.The synthesis of 18 and 19 by dehydration of the for

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