Pigment Red 3
- CAS No.
- 2425-85-6
- Chemical Name:
- Pigment Red 3
- Synonyms
- PR 3;AKA221;fastredj;fastredr;CI 12120;fastredab;fastredje;hansaredb;hansaredg;lakered4r
- CBNumber:
- CB7203442
- Molecular Formula:
- C17H13N3O3
- Molecular Weight:
- 307.3
- MDL Number:
- MFCD00003910
- MOL File:
- 2425-85-6.mol
| Product description | Number | Pack Size | Price |
| HELIO FAST RED RL Aldrich | R327581 | 1g | $97.9 |
| Toluidine Red | T536220 | 25g | $155 |
| Toluidine Red | T536220 | 1g | $65 |
| ToluidiNe Red | 290935 | 2g | $333 |
| PIGMENT RED 3 95.00% | DYE0000613 | 5MG | $501.11 |
| More product size | |||
| Melting point | 270-272 °C(lit.) |
|---|---|
| Boiling point | 447.81°C (rough estimate) |
| Density | 1.1873 (rough estimate) |
| refractive index | 1.6500 (estimate) |
| solubility | Chloroform (Slightly, Heated), DMSO (Slightly), Toluene (Very Slightly) |
| Colour Index | 12120 |
| pka | 13.45±0.50(Predicted) |
| Water Solubility | 211μg/L at 20℃ |
| Stability | Stable. May be moisture sensitive. Incompatible with strong oxidizing agents. |
| Cosmetics Ingredients Functions | COLORANT |
| LogP | 5.4 at 25℃ |
| Toxicology and Carcinogenesis | Toxicology and Carcinogenesis Studies of C.I. Pigment Red 3 (CASRN 2425-85-6) in F344/N Rats and B6C3F1 Mice (Feed Studies) |
| CAS DataBase Reference | 2425-85-6(CAS DataBase Reference) |
| EWG's Food Scores | 2-5 |
| FDA UNII | 7K26S08256 |
| IARC | 3 (Vol. 57) 1993 |
| NIST Chemistry Reference | 2-Naphthalenol, 1-[(4-methyl-2-nitrophenyl)azo]-(2425-85-6) |
| EPA Substance Registry System | C.I. Pigment Red 3 (2425-85-6) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS05,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H318-H410 | |||||||||
| Precautionary statements | P273-P280-P305+P351+P338-P501 | |||||||||
| Hazard Codes | Xi,N | |||||||||
| Risk Statements | 41-50/53 | |||||||||
| Safety Statements | 26-39-60-61 | |||||||||
| RIDADR | UN 3077 9/PG 3 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | QK4247000 | |||||||||
| TSCA | TSCA listed | |||||||||
| Hazardous Substances Data | 2425-85-6(Hazardous Substances Data) | |||||||||
| NFPA 704 |
|
Pigment Red 3 price More Price(14)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | R327581 | HELIO FAST RED RL Aldrich | 2425-85-6 | 1g | $97.9 | 2022-05-15 | Buy |
| TRC | T536220 | Toluidine Red | 2425-85-6 | 25g | $155 | 2021-12-16 | Buy |
| TRC | T536220 | Toluidine Red | 2425-85-6 | 1g | $65 | 2021-12-16 | Buy |
| Usbiological | 290935 | ToluidiNe Red | 2425-85-6 | 2g | $333 | 2021-12-16 | Buy |
| American Custom Chemicals Corporation | DYE0000613 | PIGMENT RED 3 95.00% | 2425-85-6 | 5MG | $501.11 | 2021-12-16 | Buy |
Pigment Red 3 Chemical Properties,Uses,Production
Description
C.I. Pigment Red 3, 12120 [2425-85-6] is a good representative of monoazopigments of the β-naphthol type and is one of the most important organic pigments.
Chemical Properties
red to orange powder
Uses
Toluidine Red is a oil soluble dye. Toluidine Red has been shown to cause hematopoietic cell proliferation in the spleen, liver, and bone marrow of rats. Dyes and metabolites, Environmental Testing
Definition
ChEBI: CI Pigment Red 3 is a member of azobenzenes.
General Description
Yellowish-red to red powder or solid.
Air & Water Reactions
Sensitive to moisture Dust suspensions in air can be explosive at certain concentrations. Insoluble in water.
Reactivity Profile
Pigment Red 3 may form toxic gases with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. May form flammable gases with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides.
Fire Hazard
Flash point data for Pigment Red 3 are not available; however, Pigment Red 3 is probably combustible.
Flammability and Explosibility
Non flammable
Synthesis
Using the coupling component 2-naphthol in acidic or neutral pH aqueous solution, at a temperature of 65 C or below the characteristics of low solubility, so that the coupling reaction of diazoxide and 2-naphthol in below 65 C conditions, the pH value of the control of 2 ~ 9, and then the unreacted 2-naphthol in the form of reactant crystals precipitation, and then the coupling reaction to prepare toluidine red.
Properties and Applications
|
TEST ITEMS |
SPECIFICATION |
|
APPEARANCE |
DARK RED POWDER |
|
SHADE |
BLUISH |
|
HEAT RESISTANCE |
140 °C min |
|
LIGHT FASTNESS |
7 |
|
ACID RESISTANCE |
5 |
|
ALKALI RESISTANCE |
5 |
|
FASTNESS TO BLEEDING |
4 |
|
OIL ABSORPTION |
40-45% |
|
SPECIFIC SURFACE |
28 m 2 /g |
|
DENSITY |
1.60 g/cm 3 |
|
RESIDUE ON 80 MESH |
5.0% max |
|
WATER SOLUBLE |
1.0% max |
|
VOLATITE 105 °C |
1.0% max |
|
TINTING STRENGTH |
100-105 % |
Pigment Red 3 Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Zhuanglai Chemical Trading Co Ltd | +86-16264648883 | niki@zlchemi.com | China | 7245 | 58 |
| Hefei Lbao Physical & Chemical Science Co.,Ltd | +1-5184799099 | lbaochemicals@gmail.com | China | 671 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29830 | 58 |
| Hubei xin bonus chemical co. LTD | 86-13657291602 | linda@hubeijusheng.com | CHINA | 22963 | 58 |
| Winchem industrial co limited | +8613003762012 | info@win-chemical.com | China | 300 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49977 | 58 |
| Zhengzhou Alfa Chemical Co.,Ltd | +8618530059196 | sale04@alfachem.cn | China | 9261 | 58 |
| SIMAGCHEM CORP | +86-5922680277 +86-13806087780 | sale@simagchem.com | China | 17346 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
| AFINE CHEMICALS LIMITED | +86-0571-85134551 | sales@afinechem.com | China | 15082 | 58 |
View Lastest Price from Pigment Red 3 manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-03-12 | Pigment Red 3
2425-85-6
|
US $0.00 / kg | 1kg | 98% | Customise | Hefei Lbao Physical & Chemical Science Co.,Ltd | |
 |
2025-12-03 | Pigment Red 3
2425-85-6
|
US $0.00 / kg | 25kg | 1 | 20mt | Winchem industrial co limited | |
 |
2025-05-23 | Pigment Red 3
2425-85-6
|
US $45.00 / kg | 1kg | 99% | 20 tons | Hebei Zhuanglai Chemical Trading Co Ltd |
-
- Pigment Red 3
2425-85-6
- US $0.00 / kg
- 98%
- Hefei Lbao Physical & Chemical Science Co.,Ltd
-
- Pigment Red 3
2425-85-6
- US $0.00 / kg
- 1
- Winchem industrial co limited
-
- Pigment Red 3
2425-85-6
- US $45.00 / kg
- 99%
- Hebei Zhuanglai Chemical Trading Co Ltd
