Welcome to LookChem.com Sign In|Join Free
  • or
2-(Triphenylphosphoranylidene)malonic acid dimethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

19491-23-7

Post Buying Request

19491-23-7 Suppliers

Recommended suppliers

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

19491-23-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19491-23-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,4,9 and 1 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 19491-23:
(7*1)+(6*9)+(5*4)+(4*9)+(3*1)+(2*2)+(1*3)=127
127 % 10 = 7
So 19491-23-7 is a valid CAS Registry Number.

19491-23-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name triphenylphosphonium bis(methoxycarbonyl)methylide

1.2 Other means of identification

Product number -
Other names Triphenylphosphonio-dicarbomethoxymethanid

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:19491-23-7 SDS

19491-23-7Relevant academic research and scientific papers

Comparison of conformations of diesters of stabilized phosphonium ylides in solution and in the crystal

Castaneda, Fernando,Silva, Paul,Garland, M. Teresa,Shirazi, Ata,Bunton, Clifford A.

, p. 19 - 33 (2009)

Computed bond lengths and angles of methyl ethyl and dimethyl triphenyl phosphonium ylidic diesters, 1b, c, respectively, are similar to those in the crystal, as for the diethyl ester, 1a, where both acyl oxygens are anti to phosphorus. The 1H

Design, preparation, X-ray crystal structure, and reactivity of o-alkoxyphenyliodonium bis(methoxycarbonyl)methanide, a highly soluble carbene precursor

Zhu, Chenjie,Yoshimura, Akira,Ji, Lei,Wei, Yunyang,Nemykin, Victor N.,Zhdankin, Viktor V.

supporting information; experimental part, p. 3170 - 3173 (2012/08/07)

The preparation, X-ray structure, and reactivity of new, highly soluble, and reactive iodonium ylides derived from malonate methyl ester and bearing an ortho substituent on the phenyl ring are reported. These new reagents show higher reactivity than common phenyliodonium ylides in the Rh-catalyzed cyclopropanation, C-H insertion, and transylidation reactions under homogeneous conditions.

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 Customer Service

What can I do for you?
Get Best Price

Get Best Price for 19491-23-7