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Sulphanilic Acid 99%

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Price: £10.95

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Stock Availability

On Shelf - Approx. UK delivery date: Friday the 08th August 2025*

In bulk stock - ships within 10 - 15 Working Days (Excluding weekends and public holidays)

4 to 6 weeks approx. (Not guaranteed)

UK Shipping

We can only ship to Northern Ireland where a Royal Mail postal option has been chosen at checkout.

We can only ship to the following postcodes where a Royal Mail postal option has been chosen at checkout.

AB, DD, DG3, DG4, DG6 - DG9, EH, FK, G, HS, IM, IV, KA, KW, KY, ML, PA, PH, PO30 - PO41, TD, TR21 - TR25, ZE

* We will always try to ship as early as possible. Delivery could be much quicker than stated but is not guaranteed

Applications

Nitrite and nitrate analysis
Dyes
Pigments
Sulphonamides
Combustion analysis

General

What is Sulphanilic Acid? Also known as 4-aminobenzenesulphonic acid, it is an organic compound with the formula H₃NC₆H₄SO₃. It is an off-white solid that acts as a zwitterion, contributing to its high melting point. It's a versatile chemical used as a building block in organic synthesis, particularly in the production of azo dyes and sulfa drugs.

Consistent Quality: We provide only high-quality Sulphanilic Acid, ensuring reliable and consistent performance for all applications.

Shipped from Manchester, UK Facility: Sourced and packaged in non-toxic, chemical-resistant containers to ensure safe handling and preserve product quality during transport.

Frequent Uses

Dyes and Pigments
It is a key building block in the synthesis of various azo dyes, which are widely used in the textile and food industries. It's also used in the production of pigments.

Pharmaceutical
Serves as a crucial intermediate in the production of sulphonamides, a class of antibacterial drugs.

Analytical Chemistry
Used in several analytical techniques. It forms diazonium compounds, which are useful in detecting nitrate and nitrite ions through diazonium coupling reactions. It's also used as a standard in combustion analysis, and used in the Pauly reaction, a chemical test used to detect the presence of histidine and tyrosine.

Specification

Mimimum Assay: >99%
Molecular Formula: C6H7NO3S
Molecular Weight: 173.2 g/mol
Melting Point: >300°C
Density: 1.48 g/cm3

Hazards

Hazard Phrases: Causes skin irritation. May cause an allergic skin reaction. Causes serious eye irritation.

Prec Phrases: Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Harmful CLP Image

Cas No: 121-57-3

Einecs No: 204-482-5

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Code	Pack	Price
GPC9700-X	100g	£10.95
GPC9700-5X	500g	£34.95
GPC9700-Y	1Kg	£68.95
GPC9700-5Y	5Kg	£276.95

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