Description

C.I.Acid Brown 127 is a synthetic acid dye belonging to the azo chemical class, widely recognized for its robust coloring properties and good fastness characteristics. This dye is valued for its ability to produce consistent, high-quality brown shades on protein-based fibers like wool, silk, and leather. It is an essential material for manufacturers in the textile, leather finishing, and specialty paper industries seeking reliable and efficient dyeing solutions. The compound is identified by CAS No. 12238-99-2.

Application

• Primary dyeing and printing of wool and silk textiles.
• Coloration of leather goods, including footwear, apparel, and upholstery.
• Dyeing of nylon fibers for carpets and technical fabrics.
• Manufacturing of colored paper and specialty packaging materials.
• Used in the production of inks for specific marking and printing applications.
• Blending with other acid dyes to achieve custom brown hues and tonal variations.

Basic Information

Product Name	C.I.Acid Brown 127
CAS No.	12238-99-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Acid Brown 127; C.I. 20250; Acid Leather Brown 2GL; Acid Fast Brown 2GL; Nylosan Brown E-RL; Telon Brown K-3RL; Erionyl Brown R-GL; Supranol Brown RL
EINECS	Contact for details

Quality Control

Our production of C.I.Acid Brown 127 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is analyzed for critical parameters including color strength, shade, solubility, and impurity profile. Certificates of Analysis (COA) documenting these results are provided to guarantee the product meets your specific technical requirements and industry standards.

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 (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Shade	Conforms to standard
Solubility in Water	Conforms

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