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1223-44-5

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1223-44-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1223-44-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,2,2 and 3 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1223-44:
(6*1)+(5*2)+(4*2)+(3*3)+(2*4)+(1*4)=45
45 % 10 = 5
So 1223-44-5 is a valid CAS Registry Number.

1223-44-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name (4-nitrophenyl) 2-phenylacetate

1.2 Other means of identification

Product number -
Other names 4-Nitrophenyl-phenylacetat

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:1223-44-5 SDS

1223-44-5Relevant articles and documents

Enzyme-responsive amphiphilic PEG-dendron hybrids and their assembly into smart micellar nanocarriers

Harnoy, Assaf J.,Rosenbaum, Ido,Tirosh, Einat,Ebenstein, Yuval,Shaharabani, Rona,Beck, Roy,Amir, Roey J.

, p. 7531 - 7534 (2014)

Enzyme-responsive micelles have great potential as drug delivery platforms due to the high selectivity of the activating enzymes. Here we report a highly modular design for the efficient and simple synthesis of amphiphilic block copolymers based on a line

Base-free Enantioselective C(1)-Ammonium Enolate Catalysis Exploiting Aryloxides: A Synthetic and Mechanistic Study

McLaughlin, Calum,Slawin, Alexandra M. Z.,Smith, Andrew D.

supporting information, p. 15111 - 15119 (2019/11/05)

An isothiourea-catalyzed enantioselective Michael addition of aryl ester pronucleophiles to vinyl bis-sulfones via C(1)-ammonium enolate intermediates has been developed. This operationally simple method allows the base-free functionalization of aryl esters to form α-functionalized products containing two contiguous tertiary stereogenic centres in excellent yield and stereoselectivity (all ≥99:1 er). Key to the success of this methodology is the multifunctional role of the aryloxide, which operates as a leaving group, Br?nsted base, Br?nsted acid and Lewis base within the catalytic cycle. Comprehensive mechanistic studies, including variable time normalization analysis (VTNA) and isotopologue competition experiments, have been carried out. These studies have identified (i) orders of all reactants; (ii) a turnover-limiting Michael addition step, (iii) product inhibition, (iv) the catalyst resting state and (v) catalyst deactivation through protonation.

Uniting C1-Ammonium Enolates and Transition Metal Electrophiles via Cooperative Catalysis: The Direct Asymmetric α-Allylation of Aryl Acetic Acid Esters

Schwarz, Kevin J.,Amos, Jessica L.,Klein, J. Cullen,Do, Dung T.,Snaddon, Thomas N.

supporting information, p. 5214 - 5217 (2016/05/19)

The direct, catalytic, asymmetric α-functionalization of acyclic esters constitutes a significant challenge in the area of asymmetric catalysis, particularly where the configurational integrity of the products is problematic. Through the unprecedented mer

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