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19851-61-7

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  • Dibenzyl terephthalate Manufacturer CAS NO.19851-61-7 CAS NO.19851-61-7

    Cas No: 19851-61-7

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19851-61-7 Usage

Uses

Dibenzyl terephthalate is used in the synthesis of Pharacine (P294550), which is a natural p-cyclophane from the bacterial strain Cytophaga sp. AM13.1. Pharacine is a poly(butylene terephthalate) dimer.

Check Digit Verification of cas no

The CAS Registry Mumber 19851-61-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,8,5 and 1 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 19851-61:
(7*1)+(6*9)+(5*8)+(4*5)+(3*1)+(2*6)+(1*1)=137
137 % 10 = 7
So 19851-61-7 is a valid CAS Registry Number.
InChI:InChI=1/C22H18O4/c23-21(25-15-17-7-3-1-4-8-17)19-11-13-20(14-12-19)22(24)26-16-18-9-5-2-6-10-18/h1-14H,15-16H2

19851-61-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name dibenzyl benzene-1,4-dicarboxylate

1.2 Other means of identification

Product number -
Other names 1,4-Benzenedicarboxylic acid, bis(phenylmethyl) ester

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:19851-61-7 SDS

19851-61-7Relevant articles and documents

Formation of gas-phase dianions and distonic ions as a general method for the synthesis of protected reactive intermediates. Energetics of 2,3- and 2,6-dehydronaphthalene

Reed,Hare,Kass

, p. 10689 - 10696 (2000)

New methods for the regioselective formation of radical anions are described. Dicarboxylates are generated by electrospray ionization mass spectrometry and lose carbon dioxide and an electron upon collision-induced dissociation to afford distonic ions. These radical anions also can be synthesized via laser desorption, chemical ionization, and electron ionization of dibenzyl esters. Subsequent fragmentation of the remaining CO2 affords new radical anions corresponding to neutral reactive intermediates. By measuring the proton affinities and electron binding energies of these species, quantitative energetic information on carbenes, biradicals, and other transient molecules can be obtained. This approach is demonstrated by measuring the heats of formation of 2,3- and 2,6-dehydronaphthalene, ancillary thermochemical data also are derived, and the results are compared to either o- or p-benzyne.

Cyclic polybutylene terephthalate preparation

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Paragraph 0049; 0050; 0051, (2017/07/01)

The invention specifically discloses a preparation method of novel cyclicpolybutylece terephthalate (PBT) dimer, wherein paraphthaloyl chloride and 1,4-butanediol are used as the raw materials for oriented synthesis of the cyclicpolybutylece terephthalate dimer through a protection and deprotectionstrategy, and the method is used for contrast analysis and detection of cyclicpolybutylece terephthalate dimer impurities in a PBT plastic. The chemical structural formula of the cyclicpolybutylece terephthalate dimer is described in the specification.

NOVEL SINGLE STEP ESTERIFICATION PROCESS OF ALDEHYDES USING A HETEROGENEOUS CATALYST

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Page/Page column 9; 14, (2016/06/20)

The present invention relates to a novel simple, efficient and single-step process for esterification of aldehydes using a heterogeneous catalyst with high yields. More particularly, the present invention relates to a novel simple, efficient and single-step process for esterification of aldehydes using Titanium superoxide with greater than 80% yields.

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