11/17/2014  TCI NEWS

We distribute TCI NEWS every four weeks, to our valued customers using research chemicals and chromatography products.
We hope that you find this helpful for your research.

Exhibitions/Meetings/Shows

We are very pleased to announce that TCI will attend two conferences in December, 2014.
1. RACI National Congress -Adelaide, Australia- From Dec. 7-12, 2014
2. SICC-8 International Chemistry Conference -Singapore- From Dec. 14-17, 2014

Please visit our booth at your convenience and share with us any issues you are having with your research!
2014 RACI National Congress
Adelaide Convention Centre
Adelaide, Australia
December 7-12, 2014
» TCI exhibition information      » Event details
8th Singapore International Chemistry Conference 2014
National University of Singapore
Singapore
December 14-17, 2014
» TCI exhibition information      » Event details

Reagent for Perovskite Solar Cells: Purified Lead(II) Iodide

A study on a perovskite solar cell recently receives much attention. At a main part of the solar cell, the organic-inorganic perovskite semiconductor (MeNH3PbI3) can functionalize as an absorption layer. Use of a purified lead(II) iodide is a key to fabricate efficient perovskite solar cell devices.

This material was produced by collaboration with Prof. Atsushi Wakamiya at Institute for Chemical Research, Kyoto University
Advantages
- Lead(II) iodide with extremely low water quantity for preparing a concentrated clear DMF solution.
- Fabricates efficient perovskite solar cell devices (PCE > 10%) with high reproducibility.

Comparison of DMF Solution

Comparison of PCE



Synthetic Organic Chemistry

Research Article

A Practical Crystalline Carbon Monoxide Surrogate

  Manabe et al. have reported that 2,4,6-trichlorophenyl formate is a highly reactive and easily accessible crystalline carbon monoxide (CO) surrogate in synthetic organic chemistry. 2,4,6-Trichlorophenyl formate undergoes facile decarbonylation in the presence of trialkylamine to afford CO and 2,4,6-trichlorophenol. The in situ generated CO and 2,4,6-trichlorophenol are successfully applied to the Pd-catalyzed carbonylation of aryl/alkenyl halides and triflates to give their 2,4,6-trichlorophenol ester. The obtained trichlorophenyl esters can be readily converted to a variety of carboxylic acid derivatives by using various nucleophiles.
T3121

References

T. Ueda, H. Konishi, K. Manabe, Org. Lett. 2012, 14, 5370.
H. Konishi, T. Ueda, K. Manabe, Org. Synth. 2014, 91, 39.
H. Konishi, K. Manabe, Synlett 2014, 25, 1971.

New Products

Bioscience

Product Highlight

Trolox, a Standard Antioxidant used for Antioxidant Capacity Assays

 Many food ingredients like polyphenols have antioxidative activity such as a free radical scavenging ability etc., which is evaluated by measuring its potential in vitro.1,2) Antioxidant capacity assays can be classified into two types based on HAT (hydrogen atom transfer) reactions and ET (electron transfer) reactions. HAT-based assays include the ORAC (oxygen radical absorbance) method3,4) analyzing the fluorescent intensity of fluorescein decomposed by a peroxy radical sourced from AAPH (2,2'-azobis(2-methylpropionamidine) dihydrochloride), and the TRAP (total radical trapping antioxidant parameter) method5) analyzing the fluorescent intensity of luminol oxidized by a similar peroxy radical. ET-based assays include the DPPH method6) analyzing DPPH (1,1-diphenyl-2-picrylhydrazyl) colorimetrically, and the TEAC (trolox equivalence antioxidant capacity) method7) analyzing
ABTS (2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonic acid ammonium salt))
colorimetrically, and so on.


 Trolox is a water-soluble antioxidant, which was synthesized as a vitamin E derivative in 1974.8) Trolox has been used as a standard antioxidant for these antioxidant capacity assays.


References

1)R. L. Prior, X. Wu, K. Schaich, J. Agric. Food Chem. 2005, 53, 4290.
2)D. Huang, B. Ou, R. L. Prior, J. Agric. Food Chem. 2005, 53, 1841.
3)Y. M.A. Naguib, Anal. Biochem. 2000, 284, 93.
4)J. Watanabe, T. Oki, J. Takebayashi, K. Yamasaki, Y. Takano-Ishikawa, A. Hino, A. Yasui, Anal. Sci. 2012, 28, 159.
5)P. Evelson, M. Travacio, M. Repetto, J. Escobar, S. Llesuy, E. A. Lissi, Arch. Biochem. Biophys. 2001, 388, 261.
6)T. Yamaguchi, H. Takamura, T. Matoba, J. Terao, Biosci. Biotechnol. Biochem. 1998, 62, 1201.
7)R. Re, N. Pellegrini, A. Proteggente, A. Pannala, M. Yang, C. Rice-Evans, Free Radical Biol. Med. 1999, 26, 1231.
8)J. W. Scott, W. M. Cort, H. Harley, D. R. Parrish, G. Saucy, J. Am. Oil Chem. Soc. 1974, 51, 200.

New Products

Chromatography -Analysis of Tranexamic acid by TCI Dual series

TCIDUal
Tranexamic acid is an amino acid analog with high hydrophilicity. However, with TCI Dual series, successful separation can be performed easily without any ion-pair reagents.
This application is also suitable for LC-MS by using volatile buffers.

TCI Catalogs & Product Brochures

websitetip
TCI has a wide variety of specific catalogs and product brochures. Most of them are available in PDF format and can be downloaded from our website.
Please click the following links to pick up the catalogs and brochures you are interested in:

TCI Website Tips

Reagent Guide Online –Product Information Page in TCI Website

TCI Reagent Guides, product catalogs by category, are very useful as reference book for finding reagents. Do you know Reagent Guides are available as online version in our website?
You click “Products” tab, then you can go around our product information by category easily.

Additionally, there are many online version specific features;
-New products that aren’t included in Reagent Guide are added every day.
-Product categories that aren’t included in Reagent Guides are available, and new categories are uploaded on a timely basis.

Please click the following product categories, and find your chemicals!

Other Information

TCI Facebook Page

logo Various chemistry related information, news, and fun content are posted for you.  Visit us and like us on Facebook!

https://www.facebook.com/TCIchemicals

How to Order TCI Products

For order, please contact our local distributors as follow.

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Please visit each country/region's website from the following links and confirm the prices.


http://www.tcichemicals.com

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