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5,7-Dihydroxy-1,4-naphthalenedione, also known as lawsone or henna, is a naturally occurring organic compound derived from the henna plant (Lawsonia inermis). It is a yellow crystalline solid with a molecular formula of C10H6O5 and a molecular weight of 194.15 g/mol. This chemical is a dihydroxynaphthoquinone, which means it contains two hydroxyl groups and a naphthalene ring with a quinone structure. Lawsone is widely used in the cosmetic and hair coloring industry due to its ability to bind with proteins, particularly keratin, which is found in hair and nails. It is also known for its natural dyeing properties, as it can impart a reddish-brown color to hair and skin. Additionally, lawsone has been studied for its potential antimicrobial, antifungal, and antioxidant properties, making it a versatile compound with various applications in the pharmaceutical and cosmetic industries.

4923-54-0

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4923-54-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4923-54-0 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 4 respectively.
Calculate Digit Verification of CAS Registry Number 4923-54:
(6*4)+(5*9)+(4*2)+(3*3)+(2*5)+(1*4)=100
100 % 10 = 0
So 4923-54-0 is a valid CAS Registry Number.

4923-54-0SDS

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 5,7-dihydroxynaphthalene-1,4-dione

1.2 Other means of identification

Product number -
Other names 1,4-Naphthoquinone,5,7-dihydroxy

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:4923-54-0 SDS

4923-54-0Relevant academic research and scientific papers

Method for dyeing keratinous fibres using a monohydroxyindole or dihydroxyindole and a non-oxidizing aromatic carbonyl derivative and dyeing agent

-

, (2008/06/13)

The present invention relates to a method for dyeing keratinous fibers, characterized in that the following are applied to the fibers: a) a composition (A) containing, in a medium appropriate for dyeing, at least one monohydroxyindole or dihydroxyindole, this application being preceded or followed by the application of b) a composition (B) containing, in a medium appropriate for dyeing, at least one aromatic carbonyl derivative chosen from hydroxyacetophenones, hydroxybenzophenones, 2-hydroxy-1,4-benzoquinones, hydroxy-1,4-naphthoquinones,amino-1,4-naphthoquinones,hydroxy-9,10-anthraquinones and amino-9,10-anthraquinones. It also relates to the dyeing agents for carrying it out.

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