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55400-73-2

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55400-73-2 Usage

Description

Ms-PEG5-Ms are PEG linkers containing two mesyl moieties. The mesyl groups are good leaving groups and can also be used as protecting groups for primary alcohols. They can be deprotected in the presence of sodium amalgam. The hydrophilic PEG linker increases the water solubility of the compound in aqueous media.

Chemical Properties

Yellow Oil

Check Digit Verification of cas no

The CAS Registry Mumber 55400-73-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,4,0 and 0 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 55400-73:
(7*5)+(6*5)+(5*4)+(4*0)+(3*0)+(2*7)+(1*3)=102
102 % 10 = 2
So 55400-73-2 is a valid CAS Registry Number.
InChI:InChI=1/C10H22O9S2/c1-20(11,12)18-9-7-16-5-3-15-4-6-17-8-10-19-21(2,13)14/h3-10H2,1-2H3

55400-73-2Relevant articles and documents

A convenient route to diversely substituted icosahedral closomer nanoscaffolds

Jalisatgi, Satish S.,Kulkarni, Vikas S.,Tang, Betty,Houston, Zachary H.,Lee, Mark W.,Hawthorne, M. Frederick

supporting information; scheme or table, p. 12382 - 12385 (2011/10/02)

The design and synthesis of icosahedral polyhedral borane closomer motifs based upon carbonate and carbamate anchoring groups for biomedical applications are described. Dodecacarbamate closomers containing easily accessible groups of interest at their linker termini were synthesized via activation of the B-OH vertices as aryl carbonates and their subsequent reaction with primary amines. Novel dodecacarbonate closomers were successfully synthesized for the first time by reacting [closo-B12(OH)12]2- with an excess of respective aryl chloroformates, utilizing relatively short reaction times, mild conditions and simple purification strategies, all of which had previously presented difficulties in closomer chemistry. This methodology for the 12-fold degenerate synthesis of carbonate and carbamate closomers will greatly facilitate further exploration of closomers as monodisperse nanomolecular delivery platforms.

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