Description

Calcium 4-[(3-Chloro-2-Methyl-5-Sulphonatophenyl)Azo]-3-Hydroxy-2-Naphthoate is a high-purity, organometallic azo compound valued for its excellent colorant and chelating properties. This product is engineered to deliver consistent performance and batch-to-batch reliability for demanding industrial applications. It is primarily utilized in the production of high-grade pigments, as a specialized intermediate in chemical synthesis, and in analytical chemistry as a complexometric indicator.

Application

• High-Performance Pigment Manufacturing: Serves as a key intermediate for producing vivid, light-stable azo pigments used in plastics, coatings, and inks.
• Specialty Dye Synthesis: Acts as a crucial precursor in the synthesis of metal-complex dyes for textiles and leather.
• Analytical Reagent: Used as a metallochromic indicator in complexometric titrations for determining calcium and other metal ions.
• Chemical Intermediate: Employed in advanced organic synthesis for creating functional molecules with specific chelating or chromophoric groups.
• Research & Development: Utilized in academic and industrial R&D for studying azo compound chemistry and developing new materials.

Basic Information

Product Name	Calcium 4-[(3-Chloro-2-Methyl-5-Sulphonatophenyl)Azo]-3-Hydroxy-2-Naphthoate
CAS No.	67892-40-4
Molecular Formula	C18H10CaClN2O7S
Molecular Weight	473.88 g/mol
Synonyms	Calcium 3-Hydroxy-4-[(3-chloro-2-methyl-5-sulfophenyl)azo]-2-naphthoate; Calcium 3-Hydroxy-4-[(3-chloro-2-methyl-5-sulfonatophenyl)azo]-2-naphthoate; Calcium 4-[(3-Chloro-2-methyl-5-sulfophenyl)azo]-3-hydroxy-2-naphthoate; C.I. Mordant Red 7, Calcium salt; Mordant Red 7 Calcium Lake; 2-Naphthalenecarboxylic acid, 4-[(3-chloro-2-methyl-5-sulfophenyl)azo]-3-hydroxy-, calcium salt (1:1); Calcium 3-hydroxy-4-[(3-chloro-2-methyl-5-sulphophenyl)azo]naphthalene-2-carboxylate
EINECS	Contact for details

Quality Control

Our Calcium 4-[(3-Chloro-2-Methyl-5-Sulphonatophenyl)Azo]-3-Hydroxy-2-Naphthoate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and performance. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from incompatible materials. This material is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Chloride Content	Conforms

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