Flavanthrone
Flavanthrone
CAS: 475-71-8
Molecular Formula: C28H12N2O2
Flavanthrone - Names and Identifiers
| Name | Flavanthrone |
| Synonyms | VatyellowG C.I. 70600 Vat Yellow G FLAVANTHRONE Flavanthrone C.I.Vatyellow1 Vat Yellow 1 PIGMENT YELLOW 24 C.I. Vat Yellow 1 C.I. Pigment Yellow 24 C.I. Pigment Yellow 112 Vat Yellow G(super fine powder) Flavantfrone Y-G (Pigment Yellow 24) benzo[h]benz[5,6]acridino[2,1,9,8-klmna]acridine-8,16-dione benzo[5,6]acridino[2,1,9,8-klmna]benzo[h]acridine-8,16-dione Benzo[n]banz[5,6]acridino[2,1,9,8-klmna]a cridine-8,16-dione |
| CAS | 475-71-8 |
| EINECS | 207-498-0 |
| InChI | InChI=1/C28H12N2O2/c31-27-15-7-3-1-5-13(15)25-21-17(27)9-12-20-23(21)24-19(29-25)11-10-18-22(24)26(30-20)14-6-2-4-8-16(14)28(18)32/h1-12H |
Flavanthrone - Physico-chemical Properties
| Molecular Formula | C28H12N2O2 |
| Molar Mass | 408.41 |
| Density | 1.575±0.06 g/cm3(Predicted) |
| Boling Point | 730.1±55.0 °C(Predicted) |
| Flash Point | 365.3°C |
| Solubility | Sulfuric Acid (Slightly) |
| Vapor Presure | 3.56E-21mmHg at 25°C |
| Appearance | Solid |
| Color | Very Dark Red to Very Dark Brown |
| pKa | -0.82±0.20(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.936 |
| MDL | MFCD00046959 |
| Physical and Chemical Properties | solubility: soluble in hot nitrobenzene, slightly soluble in pyridine, O-chlorophenol, insoluble in acetone, alcohol, chloroform and toluene; Dark orange in concentrated sulfuric acid, yellow precipitate after dilution; alkaline health insurance powder for blue, plus acid to green. hue or shade: red and yellow relative density: 1.55-1.65 Bulk density/(lb/gal):12.9-13.7 average particle size/μm:0.10 oil absorption/(g/100g):39-49 hiding power: transparent reflection curve:  |
| Use | The pigment is a kind of high-grade organic pigment of vat dyes, giving red and yellow color with high transparency, light fastness and weather fastness. Mix with aluminum metal pigment, used for metal automotive coatings (OEM), repair paint and plastic coloring (in HDPE thermal stability of 270 ℃); Also suitable for polyacrylonitrile fiber pulp coloring, wood and art Paint coloring. |
Flavanthrone - Risk and Safety
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
Flavanthrone - Reference Information
| color index | 70600 |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | reduced yellow g is mainly used for dyeing and printing of cotton, dimension, dimension/cotton, polyester/cotton. It has good affinity for cotton fiber and good levelness. Because it is difficult to oxidize, hydrogen peroxide or sodium perborate is used for oxidation to obtain bright color. It is also used to make organic pigments. |
| production method | using 1-chloro-2-acetylaminoanthraquinone as raw material, dechlorination and condensation reactions are completed in DMF medium with copper powder as catalyst. after copper removal, the product is hydrolyzed and closed-loop in the presence of concentrated sulfuric acid.. |
Last Update：2024-04-10 22:29:15
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