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51417-57-3

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51417-57-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 51417-57-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,4,1 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 51417-57:
(7*5)+(6*1)+(5*4)+(4*1)+(3*7)+(2*5)+(1*7)=103
103 % 10 = 3
So 51417-57-3 is a valid CAS Registry Number.

51417-57-3SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 14, 2017

Revision Date: Aug 14, 2017

1.Identification

1.1 GHS Product identifier

Product name 1,2-bis(2-bromophenyl)ethane-1,2-dione

1.2 Other means of identification

Product number -
Other names -

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:51417-57-3 SDS

51417-57-3Relevant articles and documents

Room-temperature phosphorescence-to-phosphorescence mechanochromism of a metal-free organic 1,2-diketone

Tani, Yosuke,Terasaki, Morihisa,Komura, Mao,Ogawa, Takuji

, p. 11926 - 11931 (2019)

An organic 1,2-diketone, which exhibits color change of room-temperature phosphorescence (RTP) upon mechanical stimulation, is reported. Experimental and theoretical investigations revealed that this mechanochromism is based on a molecular rotational isomerization associated with a crystalline-to-amorphous transition. In general, amorphization weakens intermolecular interactions, resulting in RTP quenching. In contrast, the present diketone shows an even higher phosphorescence quantum yield after amorphization, representing the first RTP-to-RTP mechanochromism of a metal-free organic molecule. We have disclosed that a planar conformer of the diketone, which is responsible for the RTP in the amorphous state, involves intramolecular chalcogen bonding. Having this noncovalent interaction, the diketone would be a promising platform for the design of mechanochromic and RTP-active organic materials; flexible enough for a large conformational change, while rigid enough to exhibit efficient RTP in the amorphous state.

Copper-catalyzed TEMPO oxidative cleavage of 1,3-diketones and β-keto esters for the synthesis of 1,2-diketones and α-keto esters

Zhou, Peng-Jun,Li, Cheng-Kun,Zhou, Shao-Fang,Shoberu, Adedamola,Zou, Jian-Ping

, p. 2629 - 2637 (2017/04/03)

A copper-catalyzed efficient and practical method has been developed for the synthesis of 1,2-diketones and α-keto esters. TEMPO was used as a radical initiator and scavenger, oxidizing the cleavage of α-methylene of 1,3-diketones and β-keto esters to form 1,2-diketones and α-keto esters. This method provided a general way for the formation of 1,2-dicarbonyl compounds.

Synthesis and chemistry of enantiomerically pure 10,11-dihydrodibenzo[b,f] thiepines

Wyatt, Paul,Hudson, Andrew,Charmant, Jonathan,Orpen, A. Guy,Phetmung, Hirihattaya

, p. 2218 - 2232 (2008/02/04)

Several chiral thiepines were efficiently constructed using sulfur diimidazole in combination with a variety of bislithiated carbon fragments. The sulfur atom in these thiepines is found to be unusually unreactive compared to diphenylsulfide. The Royal Society of Chemistry 2006.

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