Description

Dipotassium 4,4'-Methylenebis[3-Hydroxy-2-Naphthoate] is a high-purity, water-soluble salt derivative of a naphthoic acid-based compound, serving as a critical intermediate in advanced chemical synthesis. Its primary value lies in its role as a versatile building block for creating complex molecules, particularly in the development of functional dyes, pigments, and specialized polymers. This product is essential for manufacturers and R&D laboratories in the pharmaceutical, agrochemical, and high-performance materials sectors seeking reliable and consistent raw materials for their proprietary formulations.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a naphthalene backbone.
• Functional Dye & Pigment Synthesis: Serves as a core structure for manufacturing high-value azo dyes, optical brighteners, and specialty pigments.
• Agrochemical Formulations: Used in the development of advanced herbicides, fungicides, and plant growth regulators.
• Polymer Additive: Acts as a monomer or cross-linking agent in the production of specialty polymers with enhanced thermal or UV-stability.
• Research & Development: A valuable reagent for academic and industrial R&D in organic chemistry and material science.
• Chemical Synthesis: Versatile building block for creating complex organic molecules in fine chemical manufacturing.

Basic Information

Product Name	Dipotassium 4,4'-Methylenebis[3-Hydroxy-2-Naphthoate]
CAS No.	68226-95-9
Molecular Formula	C29H16K2O8
Molecular Weight	570.64 g/mol
Synonyms	Dipotassium 4,4'-Methylenebis(3-hydroxy-2-naphthoate); Bis(3-hydroxy-2-naphthoic acid) methylene dipotassium salt; 4,4'-Methylenebis(3-hydroxy-2-naphthoic acid) dipotassium salt; K₂-MBN; Dipotassium MBN; Methylene bis(3-hydroxy-2-naphthoate) dipotassium
EINECS	Contact for details

Quality Control

Our production of Dipotassium 4,4'-Methylenebis[3-Hydroxy-2-Naphthoate] adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling, IR for identification, and loss on drying. Certificates of Analysis (COA) detailing all specifications are provided and 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 a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to light brown powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition (Sulfated Ash)	Conforms

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