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2,4-di(1'-methyl-1'-ethylidene)cyclobutane-1,3-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

53942-65-7

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53942-65-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 53942-65-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,9,4 and 2 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 53942-65:
(7*5)+(6*3)+(5*9)+(4*4)+(3*2)+(2*6)+(1*5)=137
137 % 10 = 7
So 53942-65-7 is a valid CAS Registry Number.

53942-65-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name 2,4-di(1'-methyl-1'-ethylidene)cyclobutane-1,3-dione

1.2 Other means of identification

Product number -
Other names 2,4-Bis(isopropyliden)cyclobutan-1,3-dion

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:53942-65-7 SDS

53942-65-7Relevant academic research and scientific papers

Flash vacuum pyrolysis of 2-diazo-8-oxabicyclo[3.2.1]oct-6-en-3-ones. A new method for the preparation of propadienones

Brahms,Dailey

, p. 1381 - 1384 (2007/10/02)

When diazoketones 3a and 3b are pyrolysed at 430°C and 10-4 torr, they undergo loss of N2 followed by Wolff rearrangement and loss of furan by retro Diels-Alder reaction to yield the desired propadienones 1(a,b). If argon is added to the pyrolysate mixture, these reactive compounds can be trapped under matrix isolation conditions at 22 K and observed by FTIR. Upon photolysis, 1b yields carbon monoxide and 2-butyne.

LOW TEMPERATURE KETENE PREPARATIONS USING NITROSYLTETRACARBONYLCHROMIUM (-II) ANION

Masters, A. P.,Sorensen, T. S.

, p. 5869 - 5872 (2007/10/02)

Methylene and cyclopropyl ketenes can be generated at -100 deg C by the dehalogenation of α-bromoacylhalides using nitrosyltetracarbonylchromium (-II) anion.This facilitates the trapping of these ketenes with more stable ketenes to give mixed ketene dimers.

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