Description

Sodium 4-Hydroxy-3-[[(1-Oxooctadecyl)Amino]Carbonyl]Naphthalenesulphonate is a high-purity, anionic surfactant and dye intermediate derived from naphthalene. This compound is valued for its excellent emulsifying, dispersing, and leveling properties, making it a critical performance additive in demanding industrial formulations. It is primarily sought by manufacturers in the textile, leather, and specialty chemical industries for producing high-quality dyes, pigments, and surface treatment agents.

Application

• Textile Dyeing & Printing: Acts as a key dispersing and leveling agent for synthetic dyes, ensuring uniform color uptake and fastness on polyester, nylon, and other fibers.
• Leather Processing: Used in the dyeing and fat-liquoring of leather to improve dye penetration, uniformity, and the softness of the final product.
• Pigment Preparation: Serves as a dispersant in the manufacturing of organic pigments and masterbatches, enhancing color strength and stability.
• Industrial Detergents & Cleaners: Functions as a surfactant and emulsifier in specialized cleaning formulations for industrial equipment and hard surfaces.
• Paper Coating: Employed as a dispersant for coatings and fillers to improve sheet smoothness, printability, and optical properties.
• Chemical Synthesis: Used as an intermediate in the synthesis of more complex dyes, optical brighteners, and specialty surfactants.

Basic Information

Product Name	Sodium 4-Hydroxy-3-[[(1-Oxooctadecyl)Amino]Carbonyl]Naphthalenesulphonate
CAS No.	2467-29-0
Molecular Formula	C29H42NNaO6S
Molecular Weight	555.70 g/mol
Synonyms	N-(1-Oxooctadecyl)-4-hydroxy-3-sulfo-1-naphthalenecarboxamide Sodium Salt; 4-Hydroxy-N-stearoyl-3-sulfo-1-naphthamide Sodium Salt; Stearoyl H-Acid Sodium Salt; N-Stearoyl H-Acid Sodium Salt; 1-Naphthalenecarboxamide, N-(1-oxooctadecyl)-4-hydroxy-3-sulfo-, sodium salt (1:1); C.I. 15620; Acid Yellow 199 (related dye form)
EINECS	219-567-5

Quality Control

Our production of Sodium 4-Hydroxy-3-[[(1-Oxooctadecyl)Amino]Carbonyl]Naphthalenesulphonate adheres to a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, performance, and compliance with industry specifications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with each shipment to guarantee traceability and quality assurance for our global B2B clients.

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 material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance and flow characteristics.

Specification

Item	Specification
Appearance	Yellowish to light brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	15.0 - 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
pH (1% Solution)	7.0 - 9.0

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