Sodium benzenesulfonate

CAS 515-42-4C6H5SO3NaChemical Synthesis

Sodium benzenesulfonate (CAS 515-42-4, C6H5SO3Na) is an organic salt with a molecular weight of 180.16 g/mol. It is commonly utilised as a building block in chemical synthesis and as an intermediate in the production of various organic compounds. Its properties make it suitable for applications within organic chemistry research and industrial processes requiring sulfonic acid derivatives.

IUPAC: Benzenesulfonic acid sodium salt

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Sodium benzenesulfonate (C6H5SO3Na) — chemical structure, CAS 515-42-4; Chemistry, fine chemical supplied by Tech Serve Solutions

Building BlocksChemical SynthesisOrganic Building BlocksSulfonic/Sulfinic Acid SaltsSulfur Compounds

01 /Applications

Chemical Synthesis Intermediate

Sodium benzenesulfonate serves as a precursor or reactant in the synthesis of more complex organic molecules. It is valuable in reactions involving the introduction of the benzenesulfonate group.

Organic Building Block

As an organic building block, this compound is used in the development of new chemical entities and materials. Its structure lends itself to diverse synthetic pathways.

Sulfur Compound Derivative

Utilised in processes where sulfur-containing organic compounds are required. It is a source of the benzenesulfonate moiety in chemical manufacturing.

02 /Properties

Molecular weight	180.16
Linear formula	C6H5SO3Na
Assay	≥98.0% (T)
Density	1.124 g/mL at 25 °C(lit.)
Impurities tested	≤7% water

03 /Safety & handling

GHS hazard pictogram: Harmful / irritant (GHS07) — Harmful / irritant

Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust, fume, gas or vapours
P305IF IN EYES

Protective equipment	dust mask type N95 (US), Eyeshields, Gloves
Water hazard class (WGK, DE)	3
Hazard codes (EU)	Xi
Risk statements (R)	36/37/38
Safety statements (S)	26

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

04 /Identifiers & registry

CAS number

515-42-4

MDL number

MFCD00065179

PubChem substance

24847750

Beilstein registry

3918459

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 Sodium Benzenesulfonate used for?

Sodium benzenesulfonate is used as a building block in chemical synthesis and as an intermediate for producing various organic compounds and sulfur-containing derivatives.

What is the CAS number and formula for Sodium Benzenesulfonate?

The CAS number is 515-42-4 and the molecular formula is C6H5SO3Na.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies Sodium Benzenesulfonate with an assay of ≥98.0% (T), containing ≤7% water. We do not represent this product as USP, BP, or EP grade.

How should Sodium Benzenesulfonate be handled safely?

Handle Sodium Benzenesulfonate with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves, to avoid irritation. Ensure good ventilation and follow P261 and P305 + P351 + P338 precautions.

Is Sodium Benzenesulfonate a controlled substance?

Based on the provided data, Sodium Benzenesulfonate is not indicated as a controlled substance.

How is Sodium Benzenesulfonate packed and exported?

Sodium Benzenesulfonate is carefully packed to maintain its integrity during transit. Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals.