Macrolex Solvent Blue 97 Part II 615290
Overview
The Macrolex Solvent Blue 97, marketed commercially as Solvent Blue RR, is a high-performance solvent dye identified by Colour Index 615290. It delivers a deep, transparent blue colouration for a wide range of industrial polymers and liquid colour systems, from polystyrene and acrylic to nylon-based engineering plastics.
With CAS number 32724-62-2 and EINECS number 251-178-3, this dye is recognised worldwide under equivalent product names including Macrolex Blue RR, Keyplast Blue E, and Transparent Blue RR, making it straightforward to specify for existing colour formulations. Its molecular formula C36H38N2O2 with a molecular weight of 530.71 confirms a consistent, reproducible colouring performance in both masterbatch and liquid dosing processes.
Engineering & Design
Solvent Blue 97 belongs to the anthraquinone-based solvent dye family, which is valued for its strong tinctorial strength, thermal stability, and lightfastness in polymer applications. The dye dissolves readily in organic solvents and polymer melt systems, providing a homogeneous, transparent blue tone without the scattering effects associated with pigment dispersions.
The product is supplied in powder form and is designed for dosing into polymer compounding lines, colour masterbatch production, and solvent-based ink and coating systems. Its low migration behaviour and excellent heat resistance make it particularly suitable for injection-moulded parts, films, and fibres that must retain colour during high-temperature processing.
Key Features
- Colour Index 615290 with CAS 32724-62-2 and EINECS 251-178-3 identification
- Deep transparent blue shade with strong tinctorial strength
- Excellent thermal stability for high-temperature polymer processing
- Good lightfastness for long-term colour retention
- Solvent-soluble for inks, coatings, and liquid colour systems
- Compatible with plastics, nylon, and ink applications
- Molecular formula C36H38N2O2 with molecular weight 530.71
- Supplied as a dry powder for masterbatch and direct dosing
- Recognised under multiple equivalent trade names for cross-supplier specification
Applications
- Colour masterbatch production for injection-moulded thermoplastics
- Nylon and engineering plastic colouration
- Solvent-based inks for printing applications
- Transparent coatings and lacquers
- Polymer films and fibres requiring high heat stability
- Colour matching in compounding and extrusion processes
Specifications
| Property | Value |
|---|---|
| Product Name | Solvent Blue RR (Solvent Blue 97) |
| Colour Index | 615290 |
| CAS Number | 32724-62-2 |
| EINECS Number | 251-178-3 |
| Molecular Formula | C36H38N2O2 |
| Molecular Weight | 530.71 g/mol |
| Physical Form | Dry powder |
| Application Areas | Plastics, nylon, inks |
| Known Equivalents | Macrolex Blue RR, Keyplast Blue E, Transparent Blue RR |
For colour-critical formulations, the Macrolex Solvent Blue 97 delivers batch-to-batch consistency because the dye’s defined molecular structure C36H38N2O2 provides a fixed chromophore that reproduces the same shade in every lot. Processors can therefore rely on the Macrolex Solvent Blue 97 to maintain colour targets across production campaigns, reducing the need for re-matching and rework.
Why Seven Star LLC
Seven Star LLC supplies the Macrolex Solvent Blue 97 dye with verified product documentation and batch traceability, ensuring you receive the correct colour index product for your formulation. Our team supports colourant specification for polymer processors, masterbatch producers, and ink manufacturers across the Gulf region.
As a B2B industrial supply company based in Oman, we coordinate international sourcing of specialty chemical products, providing clear documentation and responsive support for every order.
Quality & Consistency
Anthraquinone solvent dyes such as the Macrolex Solvent Blue 97 are produced under tightly controlled synthesis conditions, and each batch is analytically checked before release. The documented Colour Index 615290 and CAS registration ensure that the product you receive is exactly the material specified for your formulation, simplifying incoming inspection and regulatory filing.
Because the dye is fully soluble in the polymer or solvent system, colour development is even and transparent, free of the haze that can appear with insoluble pigments. This makes the Macrolex Solvent Blue 97 particularly valuable for transparent containers, packaging film, and decorative articles where depth of colour and clarity are equally important.
Documentation & Supply
Seven Star LLC provides the Macrolex Solvent Blue 97 with technical documentation covering product identification, handling, and storage guidance, and our team can support the preparation of material specifications for your procurement system.
For ongoing production requirements, we coordinate scheduled supply to keep your masterbatch or ink line running without interruption, with batch documentation retained for traceability.
Handling and Storage
Store the dye in its original sealed container in a cool, dry place, away from direct sunlight and moisture. Solvent dye powders can be fine and dusty, so open containers in a ventilated area and use suitable dust control and personal protective equipment as described in the supplier’s safety data sheet. Close part-used containers tightly and keep them clearly labelled with the batch number, so that colour results can be traced back if a question comes up later.
Processing Guidance
Macrolex Solvent Blue 97 is usually introduced in one of three ways:
- Masterbatch: the dye is pre-dispersed in a carrier resin compatible with the final polymer, which gives the most consistent dosing in high-volume production.
- Direct dosing: the powder is dry-blended with polymer granules before extrusion or moulding. This suits trials and smaller runs but needs careful mixing for uniform colour.
- Liquid colour and solvent systems: the dye is dissolved in a suitable carrier or solvent for inks, coatings and liquid dosing systems.
Confirm the dosage level and processing conditions for each polymer by trial, using the technical data from the manufacturer. Solubility, heat stability and lightfastness vary between polymer systems.
Colour Matching and Quality Checks
When changing supply or lot, run a small colour trial against the approved master sample and measure it with a spectrophotometer where available. Check the result under the lighting conditions relevant to the end product. Recording the dosage and processing temperatures for each trial helps reproduce the approved shade in later production.
Regional Use
Plastic converters, masterbatch producers and packaging manufacturers in Oman and the GCC use transparent solvent dyes for bottles, caps, housings and technical parts where a clear, bright blue is needed. Seven Star LLC supplies this dye with the documentation you need, including safety data sheets and batch information, to customers across the region. We can also advise on packaging sizes suited to trials or regular production.
Request a Quote for MACROLEX SOLVENT BLUE 97-PART II 615290
For the Macrolex Solvent Blue 97, solvent dye 615290 or any related control and instrumentation requirement, contact the Seven Star LLC team. Submit a formal inquiry through our RFQ page with your required quantity and specification, and our specialists will respond with a detailed commercial proposal and the official Macrolex documentation.
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What Macrolex dyes are used for
Unlike pigments, these dyes dissolve in the polymer, which is how they give transparent, bright shades. The manufacturer describes them as soluble in organic solvents and insoluble in water. They are intended mainly for amorphous thermoplastics: polystyrene and its copolymers such as SAN and ABS, PMMA, polycarbonate, rigid PVC and PET. End uses named by the manufacturer include packaging, consumer goods and technical plastic parts. Suitability for toys or food contact differs from grade to grade.Ordering Macrolex dyes: what we need
Give the grade name exactly as it appears on the bag or drum label, the Colour Index name (here Solvent Blue 97), any reference number, the physical form (the range is sold as powder and as granulate) and the quantity. Tell us the polymer and the processing temperature. Compounders in the GCC who need a safety data sheet or a regulatory statement for the grade should say so, and we will request it from the manufacturer.Browse LANXESS (Macrolex®) products by category: Automation Accessories.
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