-
-
Cardiology
-
Clinical Oncology
-
Dental
-
Dermatology
-
Ear, Nose, Throat (ENT)
-
Endocrinology
-
Gastroenterology
-
General Surgery
-
Gynecology & Obstetrics
-
Interventional Cardiology
-
Nephrology
-
Neurology
-
Oncology Surgery
-
Ophthalmology
-
Orthopedics
-
Pediatrics
-
Pediatrics Surgery
-
Physiotherapy
-
Plastic Surgery
-
Psychiatry & Psychology
-
Radiology
-
Urology
-
Vascular Surgery
-
Metanil Yellow Powder is an anionic sulfonated azo dye supplied as its sodium salt. Its conjugated azo chromophore gives an intense yellow colour and is useful in selected staining procedures and absorption experiments. It is a dye reagent rather than a universal pH indicator. This product is listed for laboratory procurement in the pack size shown in its product name; pack size does not alter chemical identity. In educational and institutional settings, this material can support selected experiments, analytical method development or teaching exercises when matched to the procedure and suitable laboratory facilities. Correct reagent identification, applicable safety information and an appropriate method are essential before use. Physical presentation and grade alone do not establish fitness for all analytical or biological methods. Where the product name omits a hydrate form or formulation detail, verify that identity before calculating reagent masses or preparing quantitative solutions. All work should follow institutionally approved laboratory procedures and the specific product safety data sheet.
Product Specifications
| Specification | Details |
|---|---|
| Appearance | Yellow to orange-yellow powder |
| Assay | 99% |
| Chemical Name | Metanil yellow |
| Alternate Names | Acid Yellow 36; C.I. 13065; sodium 3-[(4-anilinophenyl)diazenyl]benzenesulfonate |
| Molecular Formula | C18H14N3NaO3S |
| Empirical Formula | C18H14N3NaO3S |
| CAS Number | 587-98-4 |
| Molecular Weight | 375.38 g/mol |
| Grade | LR Laboratory Reagent |
Key Features of Metanil Yellow Powder
- Sodium salt of a sulfonated aromatic azo compound.
- Distinctive yellow colouring arises from its conjugated chromophore.
- Used in selected histological counterstaining procedures.
- Suitable for supervised dye-solubility and absorption studies.
- Can be evaluated using visible-light spectrophotometry where method validated.
Laboratory Applications of Metanil Yellow Powder
- Specialized histological staining including selected trichrome protocols.
- Visible absorption-spectrum measurements in instructional laboratories.
- Supervised demonstration of azo dye chromophores.
- Preparation of known-concentration dye standards for method development.
- Research into dye adsorption and removal from simulated laboratory solutions.
Why Choose Lab Wale to Buy Metanil Yellow Powder
Lab Wale lists Metanil Yellow Powder for institutional buyers sourcing laboratory chemicals and scientific supplies for teaching, research and analytical work. Clearly identifying the chemical and intended use helps laboratories select appropriate reagents and manage procurement documentation. Review the stated LR Laboratory Reagent grade together with the exact product identity, especially where hydrate or formulation details are not specified. Consult available product-specific safety and technical information, and confirm that the selected material meets the requirements of your laboratory method before purchasing.
Frequently Asked Questions About Metanil Yellow Powder
What is Metanil Yellow Powder used for in laboratories?
Metanil Yellow Powder is used in selected institutional laboratory settings. Examples include specialized histological staining including selected trichrome protocols. and visible absorption-spectrum measurements in instructional laboratories. Procedures must be matched to the chemical form, equipment and safety restrictions. It should not be assumed suitable for unrestricted educational use.
What are the formula and CAS number of Metanil Yellow Powder?
The molecular formula is C18H14N3NaO3S, and the CAS number is 587-98-4. Some commercial products may have different hydrate forms or formulations. Confirm the manufacturer identification before making quantitative solutions or entering a substance into an institutional chemical inventory.
What key laboratory properties does Metanil Yellow Powder have?
Its conjugated azo chromophore gives an intense yellow colour and is useful in selected staining procedures and absorption experiments. It is a dye reagent rather than a universal pH indicator. These characteristics can inform experimental planning but do not replace method-specific validation or evaluation of reagent grade and safety.
Is Metanil Yellow Powder appropriate for school and research laboratory work?
Use depends on the application, chemical hazards and available engineering controls. Some studies are suitable for supervised educational settings, whereas hazardous mercury or nickel substances require specialist facilities and authorized personnel. Always review the SDS and institutional safety permissions before work.
How should Metanil Yellow Powder be stored and handled?
Store tightly closed and dry in a compatible container, away from excessive heat, moisture and direct light. Keep separate from incompatible chemicals and use secondary containment for dye powders. Prevent powder release to work surfaces or drains. Observe the current supplier SDS and the storage requirements for the exact product. Follow the manufacturer SDS for protective equipment, spill response,.
Storage Conditions for Metanil Yellow Powder
Store tightly closed and dry in a compatible container, away from excessive heat, moisture and direct light. Keep separate from incompatible chemicals and use secondary containment for dye powders. Prevent powder release to work surfaces or drains. Observe the current supplier SDS and the storage requirements for the exact product.
Precautions for Handling Metanil Yellow Powder
Review the SDS before handling. Minimize airborne dust and wear laboratory gloves, eye protection and a coat; use local exhaust when weighing larger quantities. Avoid inhalation, ingestion and skin or eye contact. Do not use the dye for unauthorized testing or nonlaboratory purposes. Clean spills without dispersing dust and dispose of dye residues in accordance with institutional procedures.


Anatomy Lab Equipments
Biochemistry Lab Equipments
Biology Lab Equipments
Chemistry Lab Equipments
Cytology Lab Equipments
Cytopathology Lab Equipments
Dental Lab Equipments
Forensic Lab Equipments
Genetics Lab Equipments
Hematology Lab Equipments
Histology Lab Equipments
Histopathology Lab Equipments
Mathematics Lab Equipments
Microbiology Lab Equipments
Molecular Biology Lab Equipments
Pathology Lab Equipments
Pharmaceutical Lab Equipments
Physics Lab Equipments
Radiology Lab Equipments
Science Lab Kit’s
Toxicology Lab Equipments

Borosilicate Glass Beaker
Plastic Beaker (Euro Design)
Plastic Beaker (Printed Graduation)
Test Tube Brush
Measuring Cylinder Brush
Conical Flask Brush
Volumetric Flask Brush
Round Bottom Flask Brush
Glass Beaker Brush
Pipette Brush
Wash Bottle Brush
Borosilicate BĂ¼chner Flask
Borosilicate Erlenmeyer/Conical Flask
Borosilicate Pear-Shaped Flask
Borosilicate Round Bottom Flask
Plastic Conical Flask
Plastic Volumetric Flask
Bunsen Burner
Spirit Lamp
Borosilicate Glass Burette
Plastic Burette
Capillary Tube
Centrifuge Tube
Test Tube
Ria Vial
Vacutainer Tubes
Syringes
Student Microscope
Binocular Microscope
Dissecting Microscope
Microscope Glass Slides
Cover Slip
Inoculating Loop
Slide Box
Lamps
Oils
Beaker Tongs
Crucible Tongs
Flask Tongs
Borosilicate Glass Funnel
Plastic Funnels
Wash Bottle
Borosilicate Glass Reagent Bottle
Plastic Reagent Bottle
Borosilicate Measuring Cylinder
Plastic Measuring Cylinder
Borosilicate Glass Graduated Pipette
Borosilicate Glass Volumetric Pipette
HB Pipette
Pasteur Pipette
Micropipettes
Micropipette Tips
Filter Paper
Litmus Paper
pH Paper
Chromatography Paper
Plastic Petri Plates (Sterile)
Glass Petri Plates (Non-Sterile)
Safety Goggles
Lab Coats
Gloves
Masks
Shoe Covers
Hair & Beard Covers
Steel Spatula
Plastic Spatula
Hitachi Sample Cup
Plastic Scoop
Plastic Medicine Cup
Dissecting Tool Kit
Dissecting Forceps
Hemostatic Forceps
Blood Culture Bottle
Urine Container
Wooden Swab Stick
Test Tube Holder
Test Tube Racks
Magnifying Glass
Watch Glass
Mortar and Pestle
Coplin Jar
Plastic Stirrer
Glass Stirrer
Crucible
Tripod
Wire Mesh
Laboratory Thermometer
Tourniquet
Alcohol Swab
Blood Lancet
Bandage
Gloves & Masks











Cardiology
Clinical Oncology







Reviews
Clear filtersThere are no reviews yet.