6-Amino-4-hydroxy-2-naphthalenesulfonic acid monohydrate

CAS 139123-65-2H2NC10H5(OH)SO3H · H2OChemical Synthesis

6-Amino-4-hydroxy-2-naphthalenesulfonic acid monohydrate (CAS: 139123-65-2; Formula: H2NC10H5(OH)SO3H · H2O) is a valuable organic compound with a molecular weight of 257.26 g/mol. Supplied by Tech Serve Solutions, this sulfonic acid derivative serves as a key intermediate in the synthesis of various organic compounds, notably aminoazo and hydroxyazo dyes. Its chemical structure lends itself to diverse applications within chemical synthesis, making it a relevant building block for specialized research and industrial processes.

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6-Amino-4-hydroxy-2-naphthalenesulfonic acid monohydrate (H2NC10H5(OH)SO3H · H2O) — chemical structure, CAS 139123-65-2; Chemistry, fine chemical supplied by Tech Serve Solutions

Building BlocksChemical SynthesisOrganic Building BlocksSulfonic/Sulfinic AcidsSulfur Compounds

01 /Applications

Dye Synthesis

Utilised as a precursor in the production of aminoazo and hydroxyazo dyes, contributing to the colourant industry.

Water Dispersible Graphene

Has been employed in the synthesis of water dispersible graphene, indicating applications in materials science and nanotechnology.

Organic Synthesis Building Block

Serves as a fundamental building block in organic synthesis, enabling the construction of more complex molecular structures.

02 /Properties

Molecular weight	257.26
Linear formula	H2NC10H5(OH)SO3H · H2O
Assay	90%
Application	6-Amino-4-hydroxy-2-naphthalenesulfonic acid has been used in the synthesis of:• aminoazo and hydroxyazo dyes1• water dispersible graphene2

03 /Safety & handling

GHS hazard pictogram: Corrosive (GHS05) — Corrosive

Danger

Hazard statements

H314Causes severe skin burns and eye damage

Precautionary statements

P280Wear protective gloves, clothing and eye/face protection
P305IF IN EYES
P310Immediately call a POISON CENTER or doctor

Protective equipment	Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
Transport (UN / ADR)	UN 2585 8/PG 3
Water hazard class (WGK, DE)	1
Hazard codes (EU)	C
Risk statements (R)	34
Safety statements (S)	26-27-28-36/37/39-45

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

139123-65-2

MDL number

MFCD00149252

PubChem substance

24857487

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is 6-Amino-4-hydroxy-2-naphthalenesulfonic acid monohydrate used for?

This compound is primarily used in the synthesis of aminoazo and hydroxyazo dyes, and has also been used in the synthesis of water dispersible graphene.

What are the CAS number and formula for 6-Amino-4-hydroxy-2-naphthalenesulfonic acid monohydrate?

The CAS number is 139123-65-2 and the linear formula is H2NC10H5(OH)SO3H · H2O.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies this chemical with an assay of 90%. TSS does not represent this product as USP, BP, EP, or pharmaceutical grade.

What are the safety considerations when handling this chemical?

This compound is classified as Danger, causing severe skin burns and eye damage (H314). Appropriate personal protective equipment, including eyeshields, face shields, gloves, and respiratory protection, must be worn. Handle in accordance with safety data sheets.