Welcome to LookChem.com Sign In|Join Free

CAS

  • or

5554-81-4

Post Buying Request

5554-81-4 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

5554-81-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5554-81-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,5,5 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 5554-81:
(6*5)+(5*5)+(4*5)+(3*4)+(2*8)+(1*1)=104
104 % 10 = 4
So 5554-81-4 is a valid CAS Registry Number.

5554-81-4SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017

1.Identification

1.1 GHS Product identifier

Product name (4-methylphenyl)sulfonylmethylidene-triphenyl-λ<sup>5</sup>-phosphane

1.2 Other means of identification

Product number -
Other names Tolylsulfonylmethylenetriphenylphosphorane

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:5554-81-4 SDS

5554-81-4Relevant articles and documents

Comparison of free-radical inhibiting antioxidant properties of carvedilol and its phenolic metabolites

Malig, Thomas C.,Ashkin, Mitchell R.,Burman, Austin L.,Barday, Manuel,Heyne, Belinda J. M.,Back, Thomas G.

, p. 606 - 615 (2017/03/30)

Carvedilol is a widely prescribed drug for the treatment of heart failure and the prevention of associated ventricular arrhythmias. It has also been reported to function as a biological antioxidant via hydrogen atom transfer from its carbazole N-H moiety

Bridging the Gap between Bisylides and Methandiides: Isolation, Reactivity, and Electronic Structure of an Yldiide

Scherpf, Thorsten,Wirth, Regina,Molitor, Sebastian,Feichtner, Kai-Stephan,Gessner, Viktoria H.

supporting information, p. 8542 - 8546 (2015/11/27)

Bisylides and methandiides are two unique families of carbon bases that have found a variety of applications in recent years. Metalated ylides (yldiides) are the link between these types of compounds. Yet, only little is known about their properties, reactivities, and particularly their electronic structure. Here, we report the preparation of the metalated ylide [Ph3P-C-SO2Tol]- (1) with different alkali metal counterions. The compounds have been studied by X-ray diffraction analysis and NMR spectroscopy and the first structures of a sodium and potassium yldiide are presented. The electronic structure of 1 was explored by DFT calculations confirming its relation with other divalent carbon species. Reactivity studies demonstrate the strong nucleophilicity of the yldiide and its capability to act both as a σ- and π-donor. Metalation makes a difference. The metalation of a stabilized phosphorus ylide yields the isolable yldiide [Ph3P-C-SO2Tol]-, which was isolated with different alkali metal counterions. Its electronic structure shows a clear relation to other divalent carbon species such as bisylides. Reactivity studies demonstrate the strong nucleophilicity of the yldiide and its capability to act both as a σ- and π-donor.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 5554-81-4