2-Hydroxy-1,4-naphthoquinone, 98%

Name: 2-Hydroxy-1,4-naphthoquinone, 98%
Brand: Vaqora Chemicals
SKU: VQ-000437

About 2-Hydroxy-1,4-naphthoquinone, 98%

Vaqora Chemicals supplies 2-Hydroxy-1,4-naphthoquinone, a biological stain registered under CAS number 83-72-7 at a purity of 98%. Its molecular formula is C10H6O3 and its molecular weight is 174.15 g/mol. The IUPAC name is 4-hydroxynaphthalene-1,2-dione. It is also known as Lawsone or Natural Orange 6.

The product is provided as a powder. Key physical data: a melting point of 192-195 °C (dec.). Keep the material at room temperature in a dry place and protect it from moisture. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Typical applications include histology and cytology staining, microscopy and clinical laboratories. Buyers come mainly from academic and industrial research, diagnostics and biotechnology and textiles and dyeing.

Available in 10 g, 25 g and 100 g packs, 2-Hydroxy-1,4-naphthoquinone is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories

Industries

Specifications & identifiers

Chemical identifiers
Product name	2-Hydroxy-1,4-naphthoquinone, 98%
Catalogue No.	VQ-000437
CAS Number	83-72-7
IUPAC name	4-hydroxynaphthalene-1,2-dione
Molecular formula	C₁₀H₆O₃
Molecular weight	174.15 g/mol
Exact mass	174.0317
Purity / assay	98%
HSN code	29332990
InChIKey	WVCHIGAIXREVNS-UHFFFAOYSA-N
SMILES	C1=CC=C2C(=C1)C(=CC(=O)C2=O)O
PubChem CID	6755

Physical properties
Physical form	Powder
Appearance	Powder
Melting point	192-195 °C (dec.)
LogP (XLogP3)	0.9
H-bond donors / acceptors	1 / 3
TPSA	54.4 Å²
Storage	Room temperature
Synonyms	Lawsone, Natural Orange 6, 2-Hydroxy-1,4-naphthoquinone, 2-hydroxynaphthalene-1,4-dione, 2-Hydroxy-1,4-naphoquinone, 2-Hydroxynaphthoquinone, 1,4-Naphthalenedione, 2-hydroxy-, 2-Hydroxy-1,4-naphthalenedione, C.I. Natural Orange 6, 1,4-Naphthoquinone, 2-hydroxy-, 2-hydroxy-1,4-dihydronaphthalene-1,4-dione, 2-hydroxy-naphthalene-1,4-dione

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 2-Hydroxy-1,4-naphthoquinone, 98%?

The CAS Registry Number of 2-Hydroxy-1,4-naphthoquinone, 98% is 83-72-7. It is also known as Lawsone, Natural Orange 6, 2-Hydroxy-1,4-naphthoquinone.

What is the molecular formula and molecular weight of 2-Hydroxy-1,4-naphthoquinone, 98%?

2-Hydroxy-1,4-naphthoquinone, 98% has the molecular formula C10H6O3 and a molecular weight of 174.15 g/mol. Its IUPAC name is 4-hydroxynaphthalene-1,2-dione.

Which grade and pack sizes of 2-Hydroxy-1,4-naphthoquinone, 98% can I order?

We supply 2-Hydroxy-1,4-naphthoquinone, 98% in (98%) grade, in 10 g, 25 g, 100 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 2-Hydroxy-1,4-naphthoquinone, 98%?

Yes. Every lot of 2-Hydroxy-1,4-naphthoquinone, 98% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 2-Hydroxy-1,4-naphthoquinone, 98% be shipped internationally?

Yes. 2-Hydroxy-1,4-naphthoquinone, 98% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.

How should 2-Hydroxy-1,4-naphthoquinone, 98% be stored?

Room temperature. Keep the container tightly closed and refer to the SDS for full handling guidance.