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Toluene-4-sulfonic acid (1R,3R,4R,5R)-3-benzyloxy-2-hydroxy-4-methyl-6,8-dioxa-bicyclo[3.2.1]oct-2-ylmethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

129269-48-3

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129269-48-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129269-48-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,2,6 and 9 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 129269-48:
(8*1)+(7*2)+(6*9)+(5*2)+(4*6)+(3*9)+(2*4)+(1*8)=153
153 % 10 = 3
So 129269-48-3 is a valid CAS Registry Number.

129269-48-3Relevant academic research and scientific papers

STEREO-CONTROLLED SYNTHESIS OF ERYTHRONOLIDES A AND B FROM 1,6-ANHYDRO-β-D-GLUCOPYRANOSE (LEVOGLUCOSAN). SKELETON ASSEMBLY IN (C9 - C13) + (C7 - C8) + (C1 - C6) SEQUENCE

Kochetkov, N. K.,Sviridov, A. F.,Ermolenko, M. S.,Yashunsky, D. V.,Borodkin, V. S.

, p. 5109 - 5136 (1989)

Stereospecific syntheses of erythronolides A and B have been accomplished starting from 1,6-anhydro-β-D-glucopyranose (levoglucosan) in a uniform synthetic sequence.

SYNTHESIS OF MACROLIDE ANTIBIOTICS. 19. SYNTHESIS OF THE C7-C13 FRAGMENT OF ERYTHRONOLIDE A

Sviridov, A. F.,Ermolenko, M. S.,Yashunskii, D. V.,Borodkin, V. S.,Kochetkov, N. K.

, p. 169 - 178 (2007/10/02)

A stereocontrolled synthesis was carried out for the C7-C13 fragment of erythronolide A in 33 steps with an overall yield of 13percent relative to starting levoglucosan.

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