Tristains products are exclusively distributed by Dawn Scientific | Please visit www.dawnscientific.com to place your order.
  • Find SDS & COA
  • APPLICATION
    • Hematology Stains
    • Staining – Histology / Cytology
    • Eosins & Hematoxylins
Tristains products are exclusively distributed by Dawn Scientific | Please visit www.dawnscientific.com to place your order.
  • Quick Reagents
  • Histological stains
    • Dry Stains & Dyes
    • Stain Solution
  • Indicators
    • Indicator Solid
    • Indicator Solution
  • Solutions
  • Solvents
  • Contact us
  • Become Distributor
Menu
Click to enlarge
Tristains

S10115

Metanil Yellow

CAS No
587-98-4
Synonym(s)
3-(4-Anilinophenylazo)benzenesulfonic
acid sodium salt; Acid Yellow 36
Molecular Formula:
C18H14N3NaO3S
Molecular Weight:
375.38
EC Number:
209-608-2
Colour Index Number:
13065
PubChem CID:
3935589
MDL number:
MFCD00007486
Specification SDS
Share:
  • Description
  • Additional information
  • Reviews (0)
  • TECHNICAL INFORMATION
Description

Metanil Yellow CAS: 587-98-4 | MF: C18H14N3O3S•Na | MW: 375.38, Buy now Histological Stains & Dyes for Histology, Cytology, Microbiology, Hematology & Biology Lab from TriStains. All Tristains products are exclusively distributed by Dawn Scientific Inc.

Metanil Yellow is a vivid yellow to orange-yellow crystalline powder. It is also referred to as 3-(4-Anilinophenylazo)benzenesulfonic acid sodium salt, Acid Yellow 36, and is classified as a synthetic azo dye with the chemical formula C18H14N3NaO3S. This dye belongs to the azo dye group, which is distinguished by the presence of the azo (-N=N-) functional group. Its chemical composition comprises a benzene ring with a dimethylamino group, a sulfonate group, and an azo group. Metanil Yellow is soluble in water and alcohol, but insoluble in organic solvents. In the field of analytical chemistry, it serves as a pH indicator, undergoing a color transition from red to yellow within the pH range of 1.2 to 3.2.

TriStains provides a marketplace for histology and biological stains, which is comprehensive enough to encompass the peculiar requirements of laboratories specializing in Histology, Cytology, Microbiology, and Hematology. With a reputation for exceeding quality expectations, TriStains performance is outstanding which allows for resolution of cell and tissue components fundamental to life sciences to be clearly visualized. Each product under TriStains series is validated for accuracy, reliability and consistency. TriStains, which manufactures and markets stains and indicators in various packing, offers laboratories turn key solutions for all their staining and indicator needs, improving accuracy in every experiment.

Application :

  • Metanil yellow has been used for staining of leukocyte granules. It is also used as a counterstain in microscopic sections.
  • It is used as a counterstain in PAS (periodic acid-Schiff)/iron-hematoxylin stained sections to increase contrast.
  • Metanil Yellow is commonly used as an indicator dye in analytical chemistry and pH testing.
  • Metanil Yellow is used as a coloring agent in various industries, such as textiles, paper, plastics, and cosmetics.

Benefits :

  • Effective coloring agent for various applications
  • Gives accurate results
  • Affordable and easy to handle
Additional information
CAS NO

587-98-4

Synonyms

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

CI No

13065

MW

–

Brand

Tristains

Size

100g, 10g, 25g, 50g

Reviews (0)

Reviews

There are no reviews yet.

Be the first to review “Metanil Yellow” Cancel reply

Your email address will not be published. Required fields are marked *


The reCAPTCHA verification period has expired. Please reload the page.

TECHNICAL INFORMATION
Alternate Names 3-(4-Anilinophenylazo)benzenesulfonic acid sodium salt; Acid Yellow 36
Application Metanil yellow is a microscopy stain and pH indicator
CAS Number 587-98-4
Molecular Weight 375.38
Molecular Formula: C18H14N3O3S•Na

For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data (including water content).

Metanil yellow is an acid dye. Studies using cross-linked chitosan beads suggest that Metanil yellow has an adsorption capacity of 3.56 mmol g?1?at pH 4 and 30? C. Alternate studies indicate that photocatalytic degradation of Metanil yellow can be carried out using TiO2?as a photocatalyst under UV irradiation. In addition, ion chromatography of Metanil yellow displayed complete mineralization into CO2, N2, H2O and inorganic ions such as NH4+, NO3??and SO42-. Furthermore, 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.

TECHNICAL INFORMATION

Appearance Powder
Physical State Solid
Solubility Soluble in water (25 mg/ml at 20° C), alcohol, benzene (slightly), acetone (very slightly), and ether.
Storage Store at room temperature
Refractive Index n20D ~1.65 (Predicted)

SAFETY INFORMATION

For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
WGK Germany 2
RTECS DB7329500
PubChem CID 3935589
Merck Index 14: 5928
MDL Number MFCD00007486
EC Number 209-608-2
Beilstein Registry 3831568
SMILES C1=CC=C(C=C1)NC2=CC=C(C=C2)N=NC3=CC(=CC=C3)S(=O)(=O)[O-].[Na+]

Related products

Neutral Red, 90%

Catalog: S10125
Buy Now

Brilliant Cresyl Blue Certified

Catalog: S10039
Buy Now

Methylene Blue Anhydrous

Catalog: S10118
Buy Now

Sudan III Certified

Catalog: S10179
Buy Now

Hematoxylin C.I. 75290

Catalog: S10097
Buy Now

Janus Green B Certified

Catalog: S10102
Buy Now

Neutral Red Certified

Catalog: S10126
Buy Now

Eosin B Spirit Soluble

Catalog: S10067
Buy Now
ABOUT
  • About Us
  • Contact Us
  • Privacy Policy
  • Terms & Conditions
RESOURCES
  • Useful Links
ACCREDITATION
  • ISO 9001:2015

© 2025 Tristains. All rights reserved

  • Quick Reagents
  • Histological stains
    • Dry Stains & Dyes
    • Stain Solution
  • Indicators
    • Indicator Solid
    • Indicator Solution
  • Solutions
  • Solvents
  • Contact us
  • Become Distributor
Categories
  • Scientific Articles
Recent Posts
  • S10097_webimg
    Hematoxylin
    April 4, 2024 No Comments
  • cytology-2
    Study Of Cytology
    March 1, 2024 No Comments
  • webimg-blog
    4,5- Dibromo fluorescein
    February 16, 2024 No Comments
OUR INSTAGRAM
3853 853
6460 250
1636 302
8920 892
8818 753
7183 850
1699 928
9560 228
9046 68
Recent Comments
    May 2025
    M T W T F S S
     1234
    567891011
    12131415161718
    19202122232425
    262728293031  
    « Apr    
    Categories
    • Scientific Articles
    May 2025
    M T W T F S S
     1234
    567891011
    12131415161718
    19202122232425
    262728293031  
    « Apr    
    Facebook Instagram linkedin