P-Violet 19(CAS#1047-16-1)
Chemical Property:
| Molecular Formula | C20H12N2O2 |
| Molar Mass | 312.32 |
| Density | 1.5 g/cm3 |
| Melting Point | 390 °C |
| Boling Point | 568.5±50.0 °C(Predicted) |
| Flash Point | 221.3°C |
| Vapor Presure | 6.14E-13mmHg at 25°C |
| Appearance | Purple red powder |
| Color | Orange to Amber to Dark red |
| pKa | -2.96±0.20(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.702 |
| MDL | MFCD00059956 |
| Physical and Chemical Properties | Hue or color: purple, yellow, red relative density: 1.5-1.8 Bulk density/(lb/gal):12.6-14.8 melting point/℃:310->400 average particle size/μm:0.05-0.1 particle shape: Purple/Cube specific surface area/(m2/g):22-85 pH value/(10% slurry):6.5-9 oil absorption/(g/100g):40-70 hiding power: transparent diffraction curve:  reflectance curve: brilliant purple powder. Bright colors. Density 1.51g/cm3. Insoluble in water, ethanol, heat stability of 165 ℃. This product is red powder, density 1.48g/cm3, bright color. Excellent fastness properties, resistance to organic solvents and high heat resistance, mixed with tetrafluoroethylene, after 430 deg C high temperature extrusion does not change color, and in a variety of plastics do not migrate. The heat resistance and the weather resistance are excellent, and the fastness thereof is not reduced even if it is highly diluted. |
| Use | There are 128 kinds of commercial dosage forms of the pigment. Beta-type quinacridone gives a reddish violet, with tetrachlorosulfur isatin (P.R.88) color light is similar, excellent light resistance and heat resistance stability; Used in high-grade industrial coatings, and inorganic pigments such as iron oxide red, molybdenum red and other color matching, transparent type can be used for metal decorative paint; can also be used in plastics such as PVC and PUR coloring, in polyolefin can withstand 300 °c. The light fastness of γ-type is slightly lower than that of β-type, but it has higher transparency. The γ-type of coarse particle size has excellent light resistance and is suitable for outdoor paint coloring, with P.R.122 puts out a tone close to the standard magenta, and the printed sample is light-resistant to grade 6-7 and heat-resistant to 190 ℃/10min, which is used for coloring laminated plastic films and PP puree. |
| Safety Description | 24/25 - Avoid contact with skin and eyes. |
| RTECS | VA8533500 |
| HS Code | 29339900 |
| Toxicity | LD50 oral in rat: > 20mL/kg |
Introduction
5,12-Dihydroquinoline[2,3-b]acridine-7,14-dione is a chemical compound, often abbreviated as BQD. The following is an introduction to the properties, uses, preparation methods and safety information of BQD:- BQD is a pale yellow crystal that is soluble in organic solvents such as dimethylformamide (DMF) and dichloromethane. - It is chemically stable and able to withstand higher temperatures and oxidizing conditions. - BQD is often used as an intermediate in organic synthesis and can undergo reactions such as oxidation, cyclization, reduction, etc. Usage:- BQD can also be used as an organic semiconductor material and dye molecule in materials science. Preparation method:- BQD can be synthesized by a variety of methods, and the common preparation method is to reduce quinoline and acridine-7,14-dione by sodium dihydride (or other reducing agents) to obtain BQD. Safety Information:- BQD is generally safe under normal and reasonable use. - It is not significantly acutely toxic or carcinogenic, but direct contact should still be avoided and inhalation of its dust or solution should be avoided. - Personal protective measures should be taken when using BQD, including wearing appropriate gloves and eye protection.
Application
Pigment Violet 19 (C.I. 73900, Quinacridone Violet, CAS 1047-16-1) is a high‑performance quinacridone organic pigment that exhibits two distinct crystal forms, yielding bright, clean shades ranging from a yellowish‑red to a violet to bluish‑red hue. As a manufacturer and supplier of premium quality Pigment Violet 19, Xinchem offers custom synthesis, custom chemical synthesis, and contract manufacturing for this versatile colorant. In the coatings industry, PV19 is recommended for industrial paints, automotive OEM finishes, coil coatings, powder coatings, water‑based and solvent‑based decorative paints, as well as marine and protective coatings. In printing applications, it is suitable for offset inks, water‑based flexographic inks, UV‑curable and digital inkjet systems, delivering high color strength, good transparency, and excellent rheology. In plastics, it is widely used to color PVC, polyolefins (PO), ABS, and rubber masterbatches. With heat resistance up to 300 °C, outstanding lightfastness (Grade 8), and excellent resistance to acids, alkalis, solvents, and migration, Pigment Violet 19 provides superior durability for outdoor and high‑temperature applications. It is also used in resin coloring, textile printing pastes, and in research fields such as organic electronics, including solar cells and OLEDs. Xinchem provides high‑purity Pigment Violet 19 with reliable global supply, scaled from R&D to commercial tons. Contact us today for a competitive quote.
