Solvent Brown 43 for Wood Stains & Inks | CAS 61116-28-7
Solvent Brown 43 (CAS 61116-28-7), also known as Solvent Brown 2RL, is a brown azo metal-complex solvent dye used in industrial coloration. It is used in selected solvent-based wood stains, printing inks, transparent coatings, leather finishes and foil-coloring applications.
For industrial supply enquiries, contact Unilong with your target shade, solvent system, application and required quantity. Grade requirements and commercial packing can be discussed for the intended order.
Solvent Brown 43 Product Information
| Product Name | Solvent Brown 43 |
|---|---|
| Color Index Name | C.I. Solvent Brown 43 |
| CAS Number | 61116-28-7 |
| Other Name | Solvent Brown 2RL |
| Dye Classification | Azo Metal-Complex Solvent Dye |
| Complex Type | 1:2 Metal Complex |
| Appearance | Brown Powder |
| Main Applications | Wood Stains, Printing Inks, Industrial Coatings, Leather Finishes, Foil Coloring |
| Common Commercial Packing | 25 kg drums or cartons; final packing confirmed with quotation |
Color Strength, Solubility and Grade Selection
Solvent Brown 43 is used in solvent-based coloration where brown shade development and compatibility with the formulation medium are important.
Shade and Color Strength
Commercial grades are commonly specified by relative color strength and shade against a reference standard. The final shade can vary with the resin, solvent system, dye concentration and application method. Unilong can review the required reference shade and color-strength target when preparing a commercial quotation.
Solubility in Organic Solvents
Solvent Brown 43 is associated with organic-solvent systems such as alcohols, ketones and selected glycol ethers. Actual dissolution depends on solvent composition, concentration, temperature and dye grade. Please identify the solvent and resin system when enquiring about a grade for inks, coatings or wood stains.
Technical Quality Parameters
Grade-specific technical parameters are agreed for the actual product offered. Common selection criteria include the following:
| Parameter | Grade Requirement |
|---|---|
| Appearance | Brown Powder |
| Color Shade | Matched to the agreed reference standard |
| Color Strength | Relative to the reference standard |
| Moisture | According to agreed grade specification |
| Solvent Solubility | Defined for the required solvent system |
| Insoluble Matter | Defined by the agreed grade |
| Light and Heat Fastness | Evaluated for the intended application |
Need a particular shade, grade or packing format for production?
Industrial Applications of Solvent Brown 43
Wood Stains and Transparent Wood Finishes
Solvent Brown 43 is used in solvent-based wood stains and selected transparent finishing systems where a brown shade is required. Its use in wood finishes includes coloring systems intended to retain the visible wood surface. The resulting shade depends on the solvent, resin, coating thickness and finishing process.
Solvent-Based Printing Inks
Solvent Brown 43 is used as a colorant in selected solvent-based printing inks, including gravure and specialty ink formulations. The target printing shade, binder and solvent system help establish suitable dye-grade requirements.
Industrial Coatings and Transparent Lacquers
Solvent Brown 43 is used in selected industrial coatings and transparent lacquer formulations requiring brown coloration in compatible organic-solvent and resin systems. Grade selection should take account of the coating formulation and processing conditions.
Leather Finishing
Solvent Brown 43 is used in selected natural and synthetic leather finishing systems to develop brown shades in compatible solvent-based surface coatings. Color appearance and finish performance depend on the formulation and substrate.
Aluminum Foil and Hot Stamping Foil Coloring
Solvent Brown 43 is also used in selected foil-coloring and hot stamping coating systems. Please include the desired shade, binder system and processing conditions in enquiries for these applications.
Packaging, Storage and Industrial Supply
Packaging
Common commercial packing formats for Solvent Brown 43 include 25 kg drums and 25 kg cartons or boxes. The applicable packing format, order quantity and shipping arrangements are confirmed in the quotation.
Storage and Handling
Store in tightly closed packaging in a cool, dry and well-ventilated area. Protect from moisture and unnecessary dust generation. Follow the applicable Safety Data Sheet and destination-market requirements for handling, transport and disposal.
Order Quantity and Dispatch Schedule
Please provide the required quantity and destination country so the applicable minimum order quantity, available packing format and dispatch schedule can be confirmed for the offered grade.
Product Documentation
Please specify required product documentation, such as a TDS, batch COA or SDS, when requesting a quotation. Technical specifications and document availability depend on the actual grade offered.
Frequently Asked Questions
Is Solvent Brown 43 the same as Solvent Brown 2RL?
Solvent Brown 2RL is a commercial name associated with C.I. Solvent Brown 43 (CAS 61116-28-7). Commercial grades can differ in color strength, shade and technical parameters.
Can Solvent Brown 43 be used in plastic applications?
It is used in selected plastic coating and surface-coloring systems. Suitability for direct plastic melt processing must be evaluated separately because processing temperatures and polymer compatibility differ from coating applications.
Is Solvent Brown 43 suitable for water-based coatings?
Solvent Brown 43 is primarily associated with organic-solvent systems. Water-based applications require a compatible dye preparation or formulation; the powder should not be assumed to be directly water-soluble.
What affects the final brown color?
Color depends on dye grade, concentration, solvent, binder, substrate and application method. A reference shade or existing formulation target is useful when requesting a matching grade.
What information is needed for a commercial quotation?
Please provide the application, preferred solvent system, target specification, required quantity, destination country and packaging needs. Include any documentation or regulatory requirements relevant to the order.
Request a Quote for Solvent Brown 43
Unilong welcomes enquiries from industrial ink, wood-coating, leather-finishing and specialty colorant manufacturers seeking Solvent Brown 43 (CAS 61116-28-7). Send your target shade, application, solvent system and purchase quantity to discuss grade availability, commercial packaging and pricing.
For applications requiring a red solvent dye, see our related Solvent Red 8 (CAS 33270-70-1) product.









