Description

C.I.Acid Brown 10 is a synthetic azo dye belonging to the acid dye class, identified by CAS No. 12234-72-9. It is valued for its ability to impart a durable brown color to protein-based fibers like wool, silk, and nylon through ionic bonding. This product is essential for manufacturers in the textile and leather industries seeking consistent, high-quality coloration with good wash and light fastness properties.

Application

• Primary dyeing of wool, silk, and other natural protein fibers.
• Coloration of polyamide (nylon) textiles and carpets.
• Leather dyeing for footwear, upholstery, and accessories.
• Blending with other acid dyes to achieve specific brown shades and hues.
• Used in the production of colored paper and specialty papers.
• Potential applications in the coloration of anodized aluminum.

Basic Information

Product Name	C.I.Acid Brown 10
CAS No.	12234-72-9
Molecular Formula	C22H14N6Na2O9S2
Molecular Weight	624.49 g/mol
Synonyms	Acid Brown 10; Acid Leather Brown 2G; Acidol Brown M; Airedale Brown 2G; Amacid Brown 2G; C.I. 20170; Dermacid Brown 2G; Lissamine Brown 2G; Suracid Brown 2G; Telon Brown 2G
EINECS	Contact for details

Quality Control

Our production of C.I.Acid Brown 10 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is tested against key parameters including color strength, shade, solubility, and fastness properties. A Certificate of Analysis (COA) detailing these results is provided with every shipment to support your quality assurance processes.

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.

Specification

Item	Specification
Appearance	Brown powder or granules
Identification	Conforms (IR / HPLC)
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Shade	Conforms to standard
Fastness Properties (Typical)	Light: 4-5; Wash: 4-5; Perspiration: 4

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