Metanil Yellow

ALDRICH/202029 - Dye content 70 %

Synonym: 3-(4-Anilinophenylazo)benzenesulfonic acid sodium salt; Acid Yellow 36

CAS Number: 587-98-4
Empirical Formula (Hill Notation): C₁₈H₁₄N₃NaO₃S
Molecular Weight: 375.38
EC Number: 209-608-2
MDL Number: MFCD00007486
Linear Formula: C₁₈H₁₄N₃NaO₃S
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-202029-100G	100 g	$61.70 1/EA	Add To Favorites

This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 202029-100G

Properties
Descriptions
Safety Info.
Basic Data

ε (extinction coefficient)	≥18500 at 415.0-419.0 nm
λ_max	414 nm
application(s)	diagnostic assay manufacturing hematology histology
composition	Dye content, 70%
form	solid
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+;
InChI key	NYGZLYXAPMMJTE-ANVLNOONSA-M
pH	1.5-2.7, red to yellow
Quality Level	200
SMILES string	[Na+].[O-]S(=O)(=O)c1cccc(c1)N=Nc2ccc(Nc3ccccc3)cc2
storage temp.	room temp
technique(s)	titration: suitable

Application:	Metanil yellow has been used for staining of leukocyte granules. It is also used as a counterstain in microscopic sections.
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.
Packaging:	100 g in glass bottle

Symbol	GHS07
Signal word	Warning
Hazard statements	H317
Precautionary statements	P280
Hazard Codes	Xi
Risk Statements	43
Safety Statements	36/37
RIDADR	NONH for all modes of transport
WGK Germany	2

Storage Temp.	room temp
Colour Index Number	13065
UNSPSC	12171500

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