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4923-58-4

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4923-58-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4923-58-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,2 and 3 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 4923-58:
(6*4)+(5*9)+(4*2)+(3*3)+(2*5)+(1*8)=104
104 % 10 = 4
So 4923-58-4 is a valid CAS Registry Number.

4923-58-4SDS

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 4,8-dihydroxynaphthalene-1,2-dione

1.2 Other means of identification

Product number -
Other names 2,8-dihydroxy-1,4-naphthalenedione

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:4923-58-4 SDS

4923-58-4Relevant articles and documents

Reactivity of potassium superoxide in heterogeneous phase: Oxidation of naphthalenediols and hydroxylated naphthoquinones

De Min,Croux,Tournaire,Hocquaux,Jacquet,Oliveros,Maurette

, p. 1869 - 1882 (2007/10/02)

Oxidation of dihydroxynaphthalenes by potassium superoxide (KO2) in heterogeneous aprotic media yields mono- or dihydroxynaphthoquinones, depending on the relative position of the hydroxy groups on the naphthalene moiety. The reaction proceeds mainly at the solid-liquid interface and naphthoquinones can be obtained with good yields.

1,4-Naphthoquinones. XV: Reaction of 2- and 3-chloro- or bromojuglone derivatives with OH in methanol. (Part I: Monomeric compounds)

Wurm,Gurka,Geres

, p. 1106 - 1113 (2007/10/02)

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