Description

Sulphur Orange 1 CAS NO 1326-49-4 is a synthetic organic dye belonging to the sulfur dye class, known for its bright orange hue and good affinity for cellulosic fibers. This product is valued for its cost-effectiveness and good wash-fastness properties in textile applications. It is primarily used by manufacturers in the textile industry for dyeing cotton and other cellulose-based materials.

Application

• Primary application in the textile dyeing of cotton fabrics and yarns.
• Used for dyeing other cellulosic fibers such as viscose (rayon) and linen.
• Employed in the coloration of paper and specialty paper products.
• Can be used for tinting leather goods.
• Suitable for educational and research purposes in dye chemistry.
• Potential use in the coloration of wood and other porous materials.

Basic Information

Item	Detail
Product Name	Sulphur Orange 1
CAS No.	1326-49-4
Molecular Formula	C12H6N2Na2O8S3
Molecular Weight	452.34 g/mol
Synonyms	Sulfur Orange 1; C.I. 53050; C.I. Sulphur Orange 1; C.I. Acid Orange 67; Sulphur Orange G; Sulfur Orange G; Thion Orange G; Leather Orange G; Paper Orange G; D&C Orange No. 4 (discontinued use); Acid Leather Orange G
EINECS	215-390-6

Quality Control

Our Sulphur Orange 1 is manufactured under a stringent quality management system. Each batch undergoes comprehensive analysis to ensure consistent shade, strength, and purity. A Certificate of Analysis (COA) detailing key parameters such as color strength, solubility, and impurity profile is provided with every shipment to guarantee it meets your specific application requirements.

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). Keep away from strong oxidizing agents and incompatible materials.

Specification

Item	Specification
Appearance	Orange to brownish-orange powder
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility	Conforms
Ash Content	≤ 1.0%
Particle Size	95% min. passes 80 mesh

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