Introduction：Basic information about METANIL YELLOW CAS 587-98-4, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
METANIL YELLOW Basic information
| Product Name: | METANIL YELLOW |
| Synonyms: | 3-((4-(phenylamino)phenyl)azo)-benzenesulfonicacimonosodiumsalt;3-[[4-(phenylamino)phenyl]azo]-benzenesulfonicacimonosodiumsalt;METANIL YELLOW ORANGE;METANIL YELLOW;KITON ORANGE MNO;KITON YELLOW MS;CI 13065;CI NO 13065 |
| CAS: | 587-98-4 |
| MF: | C18H15N3O3S.Na |
| MW: | 377.39 |
| EINECS: | 209-608-2 |
| Product Categories: | Azo;Organics;Analytical Chemistry;Indicator (pH);pH Indicators |
| Mol File: | 587-98-4.mol |
|
METANIL YELLOW Chemical Properties
| Melting point | >250°C |
| Boiling point | 325℃[at 101 325 Pa] |
| density | 0.488[at 20℃] |
| bulk density | 330kg/m3 |
| vapor pressure | 0Pa at 25℃ |
| storage temp. | room temp |
| 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). |
| λmax | 414nm, 435nm |
| ε(extinction coefficient) | ≥18500 at 415.0-419.0nm |
| 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 |
| Cosmetics Ingredients Functions | HAIR DYEING |
| InChI | 1S/C18H15N3O3S.Na/c22-25(23,24)18-8-4-7-17(13-18)21-20-16-11-9-15(10-12-16)19-14-5-2-1-3-6-14;/h1-13,19H,(H,22,23,24);/q;+1/p-1/b21-20+; |
| InChIKey | NYGZLYXAPMMJTE-ANVLNOONSA-M |
| SMILES | [Na+].[O-]S(=O)(=O)c1cccc(c1)\N=N\c2ccc(Nc3ccccc3)cc2 |
| 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) |
Safety Information
| Hazard Codes | Xi |
| Risk Statements | 43-36/37/38 |
| Safety Statements | 22-24/25-36/37-36-26 |
| WGK Germany | 2 |
| RTECS | DB7329500 |
| TSCA | TSCA listed |
| HS Code | 32041200 |
| Storage Class | 11 - Combustible Solids |
| Hazard Classifications | Aquatic Chronic 3
Eye Dam. 1 |
| Toxicity | LD50 orally in Rabbit: > 2000 mg/kg LD50 dermal Rat > 2000 mg/kg |
METANIL YELLOW Usage And Synthesis
| Description | Metanil yellow is a yellow monoazo dye. This coloringagent is used in leather and wood stains, and was alsoemployed as a food dye in India. |
| Chemical Properties | orange powder |
| Uses | dye used in leather; as indicator (pH) in laboratories |
| Uses | Metanil Yellow is used as indicator. Metanil yellow is useful in spectrophotometric methods to determine the presence of trace amounts of nitrates and nitrites in solution. The method utilizes the fact that potassium bromate can catalyze the discoloring of Metanil yellow which can then be analyzed by spectrophotometry. |
| 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. |
| 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. |
| 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 | Not classified |
| 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. |
| 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. |
| 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. |
| 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.] |
| 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 | |
METANIL YELLOW Preparation Products And Raw materials
| Raw materials | Metanilic acid-->Diphenylamine-->Metanilic acid-->Diphenylamine |
| Preparation Products | 4-Aminodiphenylamine |
