Description

Ammonium Dihydrogen 3-Sulphonatophthalate is a specialized organic salt primarily used as a key intermediate in the synthesis of high-value fine chemicals and functional dyes. Its precise molecular structure, featuring both sulphonate and phthalate groups, makes it a versatile building block for creating compounds with specific solubility and chromophoric properties. This chemical is of significant interest to manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors where tailored intermediates are required for research and production.

Application

• Pharmaceutical Intermediate: Acts as a precursor in the synthesis of active pharmaceutical ingredients (APIs) and diagnostic agents.
• Dye and Pigment Manufacturing: Serves as a crucial intermediate for producing sulfonated azo dyes and other colorants with enhanced water solubility.
• Agrochemical Synthesis: Used in the development of specialized herbicides and plant growth regulators requiring specific ionic characteristics.
• Chemical Research & Development: Employed as a building block in organic synthesis for creating novel compounds in academic and industrial R&D labs.
• Analytical Reagent: Potential use as a standard or reagent in specific chromatographic or spectroscopic analytical methods.
• Polymer Modification: Can be used to introduce sulfonate groups into polymer chains to alter solubility and ionic properties.

Basic Information

Product Name	Ammonium Dihydrogen 3-Sulphonatophthalate
CAS No.	85959-15-5
Molecular Formula	C8H11NO7S
Molecular Weight	265.24 g/mol
Synonyms	Ammonium 3-Sulfophthalate; 3-Sulfophthalic Acid Ammonium Salt; Ammonium 3-Carboxy-4-sulfobenzoate; 1,2-Benzenedicarboxylic acid, 3-sulfo-, monoammonium salt; Ammonium Hydrogen 3-Sulfophthalate; ADSP; 3-Sulfobenzoic Acid 1,2-Dicarboxylic Acid Ammonium Salt
EINECS	Contact for details

Quality Control

Our Ammonium Dihydrogen 3-Sulphonatophthalate is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and impurity profiles. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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