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20938-43-6

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20938-43-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20938-43-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,9,3 and 8 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 20938-43:
(7*2)+(6*0)+(5*9)+(4*3)+(3*8)+(2*4)+(1*3)=106
106 % 10 = 6
So 20938-43-6 is a valid CAS Registry Number.

20938-43-6SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name (4-D)-Anisol

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:20938-43-6 SDS

20938-43-6Relevant articles and documents

Tezuka,Miller

, p. 4201,4205, 4206 (1978)

Copper-catalysed low-temperature water-gas shift reaction for selective deuteration of aryl halides

Bartling, Stephan,Beller, Matthias,Bourriquen, Florian,Junge, Kathrin,Li, Wu,Liu, Weiping,Qu, Ruiyang,Rockstroh, Nils

, p. 14033 - 14038 (2021/11/12)

The introduction of deuterium atoms into organic compounds is of importance for basic chemistry, material sciences, and the development of drugs in the pharmaceutical industry, specifically for identification and quantification of metabolites. Hence, methodologies for the synthesis of selectively labelled compounds continue to be a major area of interest for many scientists. Herein, we present a practical and stable heterogeneous copper catalyst, which permits for dehalogenative deuterationviawater-gas shift reaction at comparably low temperature. This novel approach allows deuteration of diverse (hetero)aryl halides with good functional group tolerance, and no reduction of the aromatic rings or other easily reducible formyl and cyano groups. Multi-gram experiments show the potential of this method in organic synthesis and medicinal chemistry.

Pt-Pd nanoalloy for the unprecedented activation of carbon-fluorine bond at low temperature

Dhital, Raghu Nath,Ehara, Masahiro,Haesuwannakij, Setsiri,Nomura, Keigo,Sakurai, Hidehiro,Sato, Yoshinori

, p. 1180 - 1185 (2020/10/18)

Carbon-fluorine bonds are considered the most inert organic functionality and their selective transformation under mild conditions remains challenging. Herein, we report a highly active Pt-Pd nanoalloy as a robust catalyst for the transformation of C-F bonds into C-H bonds at low temperature, a reaction that has hitherto often required harsh conditions. The alloying of Pt with Pd is crucial to promote the overall C-F bond. DFT calculations elucidated that the key step is the selective oxidative addition of the O-H bond of 2-propanol to a Pd center prior to C-F bond activation at a Pt site, which crucially reduces the activation energy of the C-F bond cleavage. Therefore, both Pt and Pd work independently but synergistically to promote the overall reaction.

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