Pigment Red 4
Name:C.I.Pigment Red 4,C.I.12085
Molecular Structure: Single azo
C.I.Pigment Red 4,C.I.12085,CAS 2814-77-9,327.72,C16H10ClN3O3,Fast Red R,Flexobrite Red 4G,Sandosperse Red WF,Vibracolor Red PRE4
Molecular Formula:C16H10ClN3O3
Molecular Weight: 327.72
CAS Registry Number:2814-77-9
Manufacturing Methods : 2-Chloro-4-nitrobenzenamine diazotization, and Naphthalen-2-ol coupling.
Properties and Applications: yellow red. Red powder, bright color. Insoluble in water, slightly soluble in ethanol, acetone and benzene. In concentrated sulfuric acid to blue light magenta, dilution after yellow red precipitation; In concentrated nitric acid for brilliant scarlet; In a dilute sodium hydroxide solution does not change color; In the ethanol – potassium hydroxide solution for purple. Liquidity and cover resistance, good heat resistance is poor. Mainly used in printing ink, paint, watercolor, paint and inkpad color, also can be used for rubber, natural raw lacquer, cosmetics, paint and coating printing color.
| Light Fastness | Heat resistance(℃ ) | Sodium carbonate(5%) | Muriatic acid(5%) | Oleic acid | PVC migration | Soap micelle bleeding | |
| Melting point | Stable | ||||||
| 7 | Stable 150（20min） | 4(yellow) | 4-5 | 3 | 3-4 | ||
List of Suppliers:
Jiangsu Multicolor Fine Chemical Industry Co.,Ltd.
1087 Blazing Red (Engelhard Corp.)
1088 Blazing Red(Engelhard Corp.)
ADC Permanent Red Toner R(Amar Dye Chem Ltd)
Cosmenyl Red R( Clariant GmbH )
Covanor Orange W2608 ( Les Colorants Wackherr )
D?&C Red No 36 (C23-009) ( Sun Chemical Corp. )
DifeC Red No 36 308260 ( Warner-Jenkinson Co )
D&C Red No 36 W008 ( Les Colorants Wackherr )
Deepglo Signal Red (Deepak Colourants Pvt Ltd)
Dispercel Para Red PRT-AS(Tennants Inks & Coating Supplies Ltd)
Eljon Red PRR( European Colour (Pigments) Ltd )
Eljon Red PY( European Colour (Pigments) Ltd )
Eljon Red RW( European Colour (Pigments) Ltd )
Everbright Fast Red R 3106(Sinochem Shanghai I/E Corp/Schecho PuDong Corporation)
Fast Red R (Sinochem Ningbo Imp & Exp Corp)
Fast Red R ( Shaanxi Foreign Tade )
Flaming Red 2102 (Sudarshan Chemical Industries Ltd)
Flexobrite Red 4G (Yorkshire Group pic)
Flexobrite Red AD4(Yorkshire Group pic)
GF Signal Red(Goodlass Nerolac Paints Ltd)
Global Pigment Red 4 ( Global Colors Inc. )
Hajfast Signal Red SC(Haj Group)
Hansa Red R( Clariant GmbH )
Kohinoorment Signal Red(Krishna Chemicals)
Metrochem Pigment Red No. 18( Metrochem Industries Ltd )
Mono- Iite Red GF ( Avecia (Pigments & Additives) )
Navifast Para Red 2R ( Indian Dyestuffs Industries Ltd )
Neelicert D&C Red 36( Neelikon Food Dyes and Chemicals Ltd )
Perma Pigment Signal Red R(Highland Organic Pigments Ltd)
Permanent Red 147 (Hangzhou Dikai Chemical Co Ltd)
Permanent Red 266(Hangzhou Dikai Chemical Co Ltd)
Permanent Red R(Rolfes Colour Pigments International)
Permanent Red R( Hoechst A G )
Pigma Red ST 4 ( S A des Ets. Steiner )
Pigment Red 4 (CPMA)
Predisol Red (PRC-0550) ( Sun Chemical Corp. )
Sandosperse Red WF 004 ( Clariant GmbH )
Signal Red 401 (Sudarshan Chemical Industries Ltd)
Signal Red 402 (Sudarshan Chemical Industries Ltd)
Signal Red 403 (Sudarshan Chemical Industries Ltd)
Signal Red R( Sharda International )
Signal Red R( Bhavi International Ltd )
Solintor Red 4G(Intennedios Organicos SA)
SSpectra D&C Red 36( Spectra Colors Corp. )
Suimei Fast Red R( Kaseihin Kogyo Kyokai )
Uni Signal Red SC(Unity Dye Chem)
Vermillion R(Sinochem Liaoning Import & Export Corporation)
Versal Red R(SBU Pigments and Dyes)
Vibracolor Red PRE4( Ciba Specialty Chemicals Inc )
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