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33440-68-5

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33440-68-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 33440-68-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,4,4 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 33440-68:
(7*3)+(6*3)+(5*4)+(4*4)+(3*0)+(2*6)+(1*8)=95
95 % 10 = 5
So 33440-68-5 is a valid CAS Registry Number.

33440-68-5SDS

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 2-benzylnaphthalene-1,4-dione

1.2 Other means of identification

Product number -
Other names 2-benzyl-1,4-naphthquinone

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:33440-68-5 SDS

33440-68-5Relevant articles and documents

Metal-free oxidative cross-dehydrogenative coupling of quinones with benzylic C(sp3)-H bonds

Dong, Yu,Yang, Jian,He, Shuai,Shi, Zhi-Chuan,Wang, Yu,Zhang, Xiao-Mei,Wang, Ji-Yu

, p. 27588 - 27592 (2019/09/12)

A metal-free cross-dehydrogenative coupling of quinones with toluene derivatives has been established. A series of quinones were subjected to reaction with toluene derivatives in the presence of di-tertbutyl peroxide (DTBP) for direct synthesis of benzylq

The Application of 2-Benzyl-1,4-naphthoquinones as Pronucleophiles in Aminocatalytic Synthesis of Tricyclic Derivatives

Skrzyńska, Anna,Romaniszyn, Marta,Pomiklo, Dominika,Albrecht, Lukasz

, p. 5019 - 5026 (2018/05/17)

This study demonstrates an unprecedented reactivity of 2-substituted-1,4-naphthoquinones. By applying the principle of vinylogy, they have been employed as vinylogous pronucleophiles in the organocatalytic cascade reaction for the first time. This novel catalytic activation of 1,4-naphthoquinones enables access to carboannulated naphthalen-1(4H)-one derivatives of biological importance. The site-selectivity and stereoselectivity of a process proved possible to control by the proper choice of reaction conditions.

Enantioselective epoxidation of 2-substituted 1,4-naphthoquinones using gem-dihydroperoxides

Bunge, Alexander,Hamann, Hans-Jürgen,McCalmont, Eve,Liebscher, Jürgen

supporting information; experimental part, p. 4629 - 4632 (2009/10/26)

New gem-dihydroperoxides were successfully used for DBU-promoted enantioselective epoxidation of 2-substituted 1,4-naphthoquinones. The corresponding 1,4-naphthoquinone epoxides were obtained in yields up to 97% and ee's up to 82%.

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