Solvent Red 146 / Solvent Dyes
Solvent Dyes
Technical Information
CAS No.: 70956-30-8
Molecular formula: C20H13NO4
Description
Solvent Red 146 is a high-performance solvent dye from Honor Pigments, engineered for reliable coloring of plastics and industrial materials. Detailed technical data, physical properties and application recommendations are provided below. Request TDS/SDS for full specifications.
Identification Information:
Color Index: Solvent Red 146
CAS No.: 70956-30-8
Molecular formula: C20H13NO4
Product Specification
Appearance Dark red powder
Tinting Strength 100±3%
Shade Color Similar to the standard
Ash ≤ 1.0%
Moisture ≤ 0.5%
Color Differential Value ΔE ≤ 0.8
Technical Data
| Test Items | PS | ABS | SAN | PMMA | PC | R-PVC | PA6 | PET |
| Heat resistance temperature, ℃ | 300 | 300 | 300 | 300 | 300 | – | – | – |
| Migration resistance | – | – | – | – | – | – | – | – |
| Light fastness (0.05% dyes, transparent) | 0 | 0 | – | – | – | 0 | – |
Why Choose Honor Pigments?
- 🌍 Global Export Expertise — Trusted by customers in 40+ countries for consistent quality and reliable supply
- ✅ Strict Quality Control — ISO 9001 certified with batch-to-batch consistency and zero-defect policy
- 💰 OEM Production Advantage — Competitive pricing without compromising pigment performance
- 🧪 Technical Support — Free color matching, formulation advice and sample testing before bulk order
📩 Need more details?
Request TDS, SDS, or a free sample for testing.
Frequently Asked Questions
What is the CAS number and molecular formula of Solvent Red 146?
Solvent Red 146 has CAS No. 70956-30-8 and molecular formula C20H13NO4.
What is the heat resistance of Solvent Red 146?
Per the technical data, Solvent Red 146 withstands heat resistance temperatures of 300°C in PS, ABS, SAN, PMMA and PC.
What appearance does Solvent Red 146 provide?
It is supplied as a dark red powder with shade similar to the standard.
Which plastics can be colored with Solvent Red 146?
Technical data covers PS, ABS, SAN, PMMA, PC, R-PVC, PA6 and PET substrates, suitable for high-heat coloring of thermoplastics.
What are the key quality specifications of Solvent Red 146?
Key specifications include tinting strength 100±3%, ash ≤1.0%, moisture ≤0.5% and color differential ΔE ≤0.8.