| Identification | More | [Name]
METANIL YELLOW | [CAS]
587-98-4 | [Synonyms]
3-(4-ANILINOPHENYLAZO)BENZENESULFONIC ACID SODIUM SALT
3-[[4-(PHENYLAMINO)PHENYL]AZO]BENZENESULFONIC ACID MONOSODIUM SALT
ACID YELLOW 36
CI 13065
CI NO 13065
KITON ORANGE MNO
KITON YELLOW MS
METANIL YELLOW
METANIL YELLOW ORANGE
M-[(P-ANILINOPHENYL)AZO]BENZENESULFONIC ACID SODIUM SALT
ORANGE MNO
SODIUM M-(P-ANILINOPHENYLAZO)BENZENESULFONATE
TROPAEOLIN G
VICTORIA YELLOW
11363yellow
3-((4-(phenylamino)phenyl)azo)-benzenesulfonicacimonosodiumsalt
3-[[4-(phenylamino)phenyl]azo]-benzenesulfonicacimonosodiumsalt
abcolmetanilyellow
AcidgoldenyellowG
acidicmetanilyellow | [EINECS(EC#)]
209-608-2 | [Molecular Formula]
C18H14N3NaO3S | [MDL Number]
MFCD00007486 | [Molecular Weight]
375.38 | [MOL File]
587-98-4.mol |
| Chemical Properties | Back Directory | [Appearance]
orange powder | [Melting point ]
>250°C | [Boiling point ]
325℃[at 101 325 Pa] | [bulk density]
330kg/m3 | [density ]
0.488[at 20℃] | [vapor pressure ]
0Pa at 25℃ | [storage temp. ]
Storage temperature: no restrictions. | [solubility ]
25g/l | [Colour Index ]
13065 | [form ]
Powder | [color ]
Orange | [PH]
10 (10g/l, H2O, 20℃) | [PH Range]
Red (1.2) to yellow (2.3) | [Water Solubility ]
Soluble in water (25g/L). | [ε(extinction coefficient)]
≥18500 at 415.0-419.0nm | [λmax]
414nm, 435nm | [Merck ]
14,5928 | [BRN ]
3831568 | [Major Application]
Display device, nanoparticles, optical sensors, batteries, lithographic printing plates, inks, highlighters, children’s coloring books, floor coatings, disinfectants, dyes, personal care products, cosmetics, food storage, antiseptic, dental impressionmaterials | [Contact allergens]
Metanil yellow is a yellow monoazoic dye. This color ing agent is used in leather and wood stains, and is also employed as a food dye in India. | [LogP]
0.137 at 25℃ | [CAS DataBase Reference]
587-98-4(CAS DataBase Reference) | [EPA Substance Registry System]
C.I. Acid Yellow 36, monosodium salt (587-98-4) |
| Hazard Information | Back Directory | [Chemical Properties]
orange powder | [Definition]
ChEBI: An organic sodium salt having 3-[(4-anilinophenyl)diazenyl]benzene-1-sulfonate as the counterion. Used in one variant of Masson's trichrome to stain collagen yellow in contrast to the red muscle, but is not in common used. | [Uses]
As indicator in 0.1% solution, of which 2 drops are required for 10 ml liquid. pH: 1.2 red to 2.3 yellow. | [Description]
Metanil yellow is a yellow monoazo dye. This coloring
agent is used in leather and wood stains, and was also
employed as a food dye in India.
| [General Description]
Metanil yellow is an azo dye, which is used as a counterstain in PAS (periodic acid-Schiff) or iron-hematoxylin stained sections to increase contrast. At pH 1.2, metanil yellow is red in color, whereas in pH 2.3, it is yellow in color. | [Flammability and Explosibility]
Notclassified | [Biochem/physiol Actions]
Metanil yellow is an azo dye. It is used as a counterstain in PAS (periodic acid-Schiff)/iron-hematoxylin stained sections to increase contrast. Metanil yellow changes its color from red at pH 1.2 to yellow at pH 2.3. | [Properties and Applications]
|
Standard
|
Light Fastness
|
Soaping
|
Persperation Fastness
|
Oxygen bleaching
|
Fastness to seawater
|
|
Fading
|
Stain
|
Fading
|
Stain
|
Fading
|
Stain
|
|
ISO
|
3
|
2
|
|
2-3
|
|
|
|
|
|
AATCC
|
3
|
1
|
|
4
|
|
|
5
|
1
|
| [Purification Methods]
It can be salted out from water three times with sodium acetate, then repeatedly extracted with EtOH [McGrew & Schneider J Am Chem Soc 72 2547 1950]. [Beilstein 16 II 168.] |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R43:May cause sensitization by skin contact.
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes .
S36/37:Wear suitable protective clothing and gloves .
S36:Wear suitable protective clothing .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . | [WGK Germany ]
2
| [RTECS ]
DB7329500
| [TSCA ]
Yes | [HS Code ]
32041200 | [Safety Profile]
Moderately toxic by
intraperitoneal route. Experimental
reproductive effects. Human mutation data
reported. When heated to decomposition it
emits toxic fumes of SOx, NOx, and NazO.
See also AROMATIC AMINES and
SULFONATES. | [Toxicity]
LD50 orally in Rabbit: > 2000 mg/kg LD50 dermal Rat > 2000 mg/kg |
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