Description

5-Mercapto-2-Nitrobenzoic Acid Sodium Salt is a versatile organic intermediate with significant utility in advanced chemical synthesis. Its value lies in the unique reactivity imparted by the combination of a nitro group, a carboxylic acid salt, and a thiol functionality. This compound is primarily sought after by research institutions and manufacturers in the pharmaceutical and specialty chemical sectors for developing novel compounds and active ingredients.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of complex drug molecules, particularly those targeting specific enzymes or receptors.
• Biochemical Research: Used as a reagent or precursor in proteomics and enzyme studies, often exploiting the thiol group for conjugation or labeling.
• Organic Synthesis: Serves as a versatile synthon for constructing heterocyclic compounds, dyes, and other nitro- or sulfur-containing specialty chemicals.
• Analytical Chemistry: Can be employed in the development of chromogenic or fluorogenic probes and sensors due to its reactive sites.
• Material Science: Potential use as a monomer or additive in the development of polymers with specific electronic or adhesive properties.

Basic Information

Product Name	5-Mercapto-2-Nitrobenzoic Acid Sodium Salt
CAS No.	63467-78-7
Molecular Formula	C7H4NNaO4S
Molecular Weight	221.16 g/mol
Synonyms	5-Mercapto-2-nitrobenzoic acid sodium salt; Sodium 5-mercapto-2-nitrobenzoate; 2-Nitro-5-sulfanylbenzoic acid sodium salt; 5-Thiol-2-nitrobenzoic acid sodium salt; DTNB precursor sodium salt; Ellman's reagent precursor sodium salt; Benzoic acid, 5-mercapto-2-nitro-, sodium salt (1:1)
EINECS	Contact for details

Quality Control

Our 5-Mercapto-2-Nitrobenzoic Acid Sodium Salt is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including HPLC, NMR, and titration to confirm identity and potency. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is easily oxidized (store under inert atmosphere) and light-sensitive (store away from light). Keep away from strong oxidizing agents and incompatible materials.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.