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23089-58-9

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23089-58-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 23089-58-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,0,8 and 9 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 23089-58:
(7*2)+(6*3)+(5*0)+(4*8)+(3*9)+(2*5)+(1*8)=109
109 % 10 = 9
So 23089-58-9 is a valid CAS Registry Number.

23089-58-9Relevant articles and documents

STRUCTURAL INVESTIGATION OF AN ANTIBIOTIC SPORAVIRIDIN IV. STRUCTURAL REVISION OF VIRIDOPENTAOSES

Harada, Ken-ichi,Ito, Susumu,Suzuki, Makoto

, p. 2479 - 2480 (1982)

Structures of viridopentaose A, B and C are revised as 4A, 4B and 4C, respectively, by 1H-NMR (360 MHz) spectra and chemical degradations.

Syntheses of spacer-linked neodisaccharides derived from L-Daunosamine

Kirschning, Andreas,Chen, Guang-Wu

, p. 4665 - 4668 (2007/10/03)

The preparation of novel head-to-head spacer-linked bisdaunosamine homodimers 8, 15 and 18 is described. The synthesis is achieved by double glycosylation of monosilylated 1,4-butanediol 9 using silyl glycoside 5 as glycosyl donor. Alternatively, olefin metathesis of allyl glycosides α-11 and particularly of α-12 constitutes a second route toward 8 and its unsaturated derivative 15 while non symmetrical dimer 18 has been obtained by cross metathesis of allyl glycosides 11 and 12.

CONVENIENT SYNTHESYS OF L-DAUNOSAMINE AND L-ACOSAMINE

Brimacombe, John S.,Hanna, Roderick,Tucker, Leslie C. N.

, p. 419 - 426 (2007/10/02)

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THE SYNTHESIS OF 3-ACETAMIDO-2,3,5,6-TETRADEOXY-5-FLUORO-D,L-ribo-HEXOFURANOSE BY THE DIRECT FLUORINATION OF METHYL 3-ACETAMIDO-2,3,6-TRIDEOXY-D,L-arabino-HEXOPYRANOSIDE (METHYL N-ACETYL-D,L-ACOSAMINIDE)

Welch, John T.,Svahn, Britt-Marie,Eswarakrishnan, Seetha,Hutchinson, John P.,Zubieta, Jon

, p. 221 - 232 (2007/10/02)

3-Acetamido-2,3,5,6-tetradeoxy-5-fluoro-D,L-ribo-hexofuranose was synthesized by direct, fluorinative dehydroxylation of methyl 3-acetamido-2,3,6-trideoxy-D,L-arabino-hexopyranoside with sulfur tetrafluoride-hydrogen fluoride.The furanose form and the ribo configuration, indicated by 13C- and 1H-n. m. r. spectroscopy, respectively, were confirmed by a single-crystal, X-ray diffraction study.

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