Description

Reactive Orange CAS NO 109603-48-7 is a high-purity, reactive dye intermediate essential for the synthesis of vibrant and wash-fast orange dyes. Its primary value lies in its ability to form covalent bonds with textile fibers, particularly cellulose, resulting in exceptional color fastness properties. This product is a critical raw material for manufacturers in the textile, leather, and specialty paper industries seeking to produce durable and brilliant orange hues.

Application

• Primary dyeing and printing of cellulosic fibers such as cotton, viscose, and linen.
• Coloration of protein fibers like wool and silk under specific application conditions.
• Manufacturing of leather goods, providing rich and stable orange colors.
• Production of colored paper products and specialty packaging materials.
• Used in the formulation of inkjet inks for textile printing.
• Synthesis of other complex dyes and colorants for various industrial applications.

Basic Information

Product Name	Reactive Orange CAS NO 109603-48-7
CAS No.	109603-48-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Reactive Orange Dye; C.I. Reactive Orange; Reactive Orange Intermediate; 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-[(4-[(2-sulfooxyethyl)sulfonyl]phenyl]azo]-6-(phenylamino)-, sodium salt (1:?); Reactive Orange HE2R; Reactive Brilliant Orange; Reactive Orange HE; Reactive Orange H-ER
EINECS	Contact for details

Quality Control

Our Reactive Orange 109603-48-7 is manufactured under a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, color strength, and reactive group content. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and solubility. Our quality commitment ensures the product meets the high standards required for industrial dye synthesis.

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 after each use to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content	Max. 5.0%
Water Solubility	Conforms
Heavy Metals (as Pb)	Max. 20 ppm
pH (1% Solution)	6.0 - 8.0

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