Description

Cdta Disodium Salt is a high-purity chelating agent widely recognized for its strong affinity for metal ions. This compound is essential in applications requiring precise control of metal ion activity to prevent unwanted catalysis, precipitation, or degradation. It is a critical raw material for manufacturers in the pharmaceutical, cosmetic, and analytical reagent industries, where product stability and purity are paramount.

Application

• Pharmaceutical Manufacturing: Used as a stabilizing agent in injectable formulations and ophthalmic solutions to chelate trace metal impurities.
• Cosmetic & Personal Care: Acts as a sequestrant in creams, lotions, and shampoos to enhance shelf-life and product integrity.
• Analytical Chemistry: Serves as a key component in buffer solutions and mobile phases for chromatography (e.g., HPLC) to improve peak shape and method reproducibility.
• Industrial Processes: Employed in water treatment and textile processing to control water hardness and prevent scale formation.
• Research & Development: Utilized in biochemical and molecular biology laboratories as a component of lysis and assay buffers.

Basic Information

Product Name	Cdta Disodium Salt
CAS No.	57137-35-6
Molecular Formula	C14H22N2O10Na2
Molecular Weight	424.32 g/mol
Synonyms	Trans-1,2-Cyclohexanediamine-N,N,N',N'-tetraacetic Acid Disodium Salt; 1,2-Diaminocyclohexane-N,N,N',N'-tetraacetic Acid Disodium Salt; CDTA Disodium Salt; Cyclohexanediaminetetraacetic Acid Disodium Salt; DCTA Disodium Salt; Chel D 120; Hamp-Ex D-120; Versene CDTA
EINECS	Contact for details

Quality Control

Our Cdta Disodium Salt is manufactured under a strict quality management system. Each batch is tested to ensure it meets high-purity standards suitable for pharmaceutical and analytical applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and batch-to-batch consistency.

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). This product is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed after each use to prevent absorption of atmospheric moisture, which may affect product quality.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
pH (5% Solution)	4.0 - 6.0
Loss on Drying	≤ 1.0%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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