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2,3-Naphthalenedione, also known as 2,3-dihydroxy-1,4-naphthoquinone, is an organic compound with the chemical formula C10H6O4. It is a yellow crystalline solid that is soluble in organic solvents and has a molecular weight of 190.16 g/mol. 2,3-Naphthalenedione is an important intermediate in the synthesis of various dyes, pigments, and pharmaceuticals, particularly in the production of the blue dye indigo. 2,3-Naphthalenedione is also used as a reagent in analytical chemistry for the detection of certain metal ions. It is synthesized through various methods, including oxidation of naphthalene derivatives and condensation reactions. Due to its reactivity, it is essential to handle 2,3-napthalenedione with care, as it can be harmful if inhaled, ingested, or absorbed through the skin.

4939-92-8

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4939-92-8 Usage

Physical State

Yellow crystalline solid

Application

Organic synthesis
Precursor for dye production
Reagent in biochemical research
Manufacturing of pharmaceuticals

Reactivity

Highly susceptible to nucleophilic addition reactions

Hazards

Considered a hazardous substance
Potential for irritation and toxicity

Handling

Should be handled with care

Check Digit Verification of cas no

The CAS Registry Mumber 4939-92-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,3 and 9 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 4939-92:
(6*4)+(5*9)+(4*3)+(3*9)+(2*9)+(1*2)=128
128 % 10 = 8
So 4939-92-8 is a valid CAS Registry Number.

4939-92-8SDS

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 2,3-naphthoquinone

1.2 Other means of identification

Product number -
Other names 1,2-Naphthochinon

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:4939-92-8 SDS

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