Description

Disperse Orange 37 is a high-performance synthetic dye belonging to the disperse dye class, widely recognized for its vibrant orange hue and excellent fastness properties. Its primary value lies in its ability to effectively color synthetic hydrophobic fibers, particularly polyester and its blends, with superior wash and light fastness. This product is essential for manufacturers in the textile and plastics industries seeking consistent, high-quality coloration for a range of synthetic materials.

Application

• Primary dyeing and printing of polyester fibers and fabrics.
• Coloration of polyester-cotton and other synthetic fiber blends.
• Mass coloration of synthetic polymers, including certain plastics and resins.
• Used in the production of colored polyester yarns and threads.
• Application in transfer printing processes for textiles.
• Potential use as a colorant for specialty inks and coatings.

Basic Information

Product Name	Disperse Orange 37
CAS No.	12223-33-5
Molecular Formula	C18H14N4O2
Molecular Weight	318.33 g/mol
Synonyms	Disperse Orange 37; C.I. Disperse Orange 37; 1-[[4-[(2-Cyanoethyl)ethylamino]phenyl]azo]-2-methyl-4-nitrobenzene; 2-Methyl-4-nitro-4'-[N-ethyl-N-(2-cyanoethyl)amino]azobenzene; Acetate Orange G; Amacel Orange G; Artisil Orange 3G; C.I. 11132; Disperse Orange G; Foron Orange S-R; Intrasil Orange 2GH; Kayalon Polyester Orange GSL; Miketon Polyester Orange G; Palanil Orange G; Resolin Orange G; Samaron Orange HGG; Serilene Orange R-LS; Terasil Orange GWL
EINECS	Contact for details

Quality Control

Our Disperse Orange 37 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Quality is verified through comprehensive testing including spectrophotometric analysis, chromatography (HPLC/TLC), and fastness property assessments. A Certificate of Analysis (COA) detailing purity, strength, and specific application properties is provided with every shipment to guarantee it meets your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder or granules
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Purity (HPLC)	≥ 98.0%
Moisture Content	≤ 1.0%
Ash Content	≤ 0.5%
Dispersion Stability	Good to very good
Particle Size	Passes through specified mesh

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