| Identification | More | [Name]
Pigment Red 3 | [CAS]
2425-85-6 | [Synonyms]
1-(4-METHYL-2-NITROPHENYLAZO)-2-NAPHTHOL
CI 12120
PIGMENT RED 3
PR 3
RW RED RN
TOLUIDINE RED
TOLUIDINE TONER
((4-Methyl-2-nitrophenyl)azo)-2-naphthol
1-((2-nitro-4-methylphenyl)azo)-2-naphthol
1-((4-methyl-2-nitrophenyl)azo)-2-naphthaleno
1-((4-methyl-2-nitrophenyl)azo)-2-naphthalenol
1-(o-nitro-p-tolylazo)-2-naphthol
1-[(4-methyl-2-nitrophenyl)azo]-2-naphthaleno
Accosperse Toluidine Red XL
accospersetoluidineredxl
ADC Toluidine Red B
adctoluidineredb
atlasolspiritred3
Basoflex Red 361
C.I. Pigment Red 3 | [EINECS(EC#)]
219-372-2 | [Molecular Formula]
C17H13N3O3 | [MDL Number]
MFCD00003910 | [Molecular Weight]
307.3 | [MOL File]
2425-85-6.mol |
| Chemical Properties | Back Directory | [Appearance]
red to orange powder | [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 | [form ]
neat | [pka]
13.45±0.50(Predicted) | [Stability:]
Stable. May be moisture sensitive. Incompatible with strong oxidizing agents. | [Water Solubility ]
211μg/L at 20℃ | [Henry's Law Constant]
8.2×106 mol/(m3Pa) at 25℃, HSDB (2015) | [Cosmetics Ingredients Functions]
COLORANT | [LogP]
5.4 at 25℃ | [CAS DataBase Reference]
2425-85-6(CAS DataBase Reference) | [IARC]
3 (Vol. 57) 1993 | [NIST Chemistry Reference]
2-Naphthalenol, 1-[(4-methyl-2-nitrophenyl)azo]-(2425-85-6) | [EPA Substance Registry System]
2425-85-6(EPA Substance) |
| Safety Data | Back Directory | [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 ]
R41:Risk of serious damage to eyes.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S39:Wear eye/face protection .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | [RIDADR ]
UN 3077 9/PG 3 | [WGK Germany ]
3 | [RTECS ]
QK4247000 | [TSCA ]
TSCA listed | [REACH Registrations]
Active | [Hazardous Substances Data]
2425-85-6(Hazardous Substances Data) |
| Hazard Information | Back Directory | [General Description]
Yellowish-red to red powder or solid. | [Reactivity Profile]
C.I. PIGMENT RED 3(2425-85-6) 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. | [Air & Water Reactions]
Sensitive to moisture Dust suspensions in air can be explosive at certain concentrations. Insoluble in water. | [Fire Hazard]
Flash point data for this chemical are not available; however, C.I. PIGMENT RED 3 is probably combustible. | [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. | [Flammability and Explosibility]
Nonflammable | [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 | [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 %
|
|
|
| Company Name: |
J & K SCIENTIFIC LTD.
|
| Telephone: |
18210857532 18210857532 |
| Website: |
https://www.jkchemical.com |
| Company Name: |
Spectrum Chemical Manufacturing Corp.
|
| Telephone: |
021-021-021-67601398-809-809-809 15221380277 |
| Website: |
www.spectrumchemical.com/oa_html/index.jsp?minisite=10020&respid=22372&language=us |
| Company Name: |
Boen pharm
|
| Telephone: |
86 512-62572107 62962707 |
| Website: |
www.chemicalbook.com/ShowSupplierProductsList19300/0_EN.htm |
|