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721-45-9

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721-45-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 721-45-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,2 and 1 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 721-45:
(5*7)+(4*2)+(3*1)+(2*4)+(1*5)=59
59 % 10 = 9
So 721-45-9 is a valid CAS Registry Number.

721-45-9SDS

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 1,4-dimethyl-2-[(4-methylphenyl)methyl]benzene

1.2 Other means of identification

Product number -
Other names 1,4-Dimethyl-2-(4-methylbenzyl)benzene

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:721-45-9 SDS

721-45-9Relevant articles and documents

Development of highly efficient Friedel-Crafts alkylations with alcohols using heterogeneous catalysts under continuous-flow conditions

Kobayashi, Shū,Koumura, Nagatoshi,Masuda, Koichiro,Okamoto, Yukiko,Onozawa, Shun-Ya

, p. 24424 - 24428 (2021/07/29)

The development of Friedel-Crafts alkylations with alcohols under continuous-flow conditions using heterogeneous catalysts is reported. The reactivities and durabilities of the examined catalysts were systematically investigated, which showed that montmorillonite clay is the best catalyst for these reactions. A high turnover frequency of 9.0 × 102h?1was recorded under continuous-flow conditions, and the continuous operation was successfully maintained over one week.

Photochemical benzylic radical arylation promoted by supported Pd nanostructures

Costa, Paolo,Gawargy, Teresa A.,Lanterna, Anabel E.,Scaiano, Juan C.

supporting information, p. 6047 - 6052 (2020/10/21)

We report a novel way to promote photochemical benzylic radical arylations using Pd nanostructures. Traditional benzylic radical reaction pathways are challenged by the presence of metal centres that provoke unprecedented regioselectivity towards more synthetically relevant C(sp3)-C(sp2) couplings. This new C-H activation pathway is rationalised by means of a pseudo-persistent radical effect facilitated by metal centres. We show the mechanistic and computational aspects of the heterogeneous photocatalytic processes that are the root of this drastic change in reactivity. This journal is

Fe-catalyzed double cross-dehydrogenative coupling of 1,3-dicarbonyl compounds and arylmethanes

Yang, Kai,Song, Qiuling

supporting information, p. 548 - 551 (2015/03/05)

Fe-catalyzed tandem cross-dehydrogenative coupling of the methyl group in arylmethanes with 1,3-dicarbonyl compounds has been developed. The reaction affords one new C(sp3)-C(sp2) bond and one new C(sp3)-C(sp3)

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