Alizarin Yellow GG
Alizarin Yellow GG (CAS: 584-42-9, Formula: C13H8N3NaO5) is a reliable sodium salt indicator supplied by Tech Serve Solutions. With a molecular weight of 309.21 g/mol, this compound is recognised for its distinct colour change properties. Primarily employed as a pH indicator, it finds applications in analytical chemistry, particularly in titration processes, and in histological staining for biological research.
- IUPAC
- 5-(3-Nitrophenylazo)salicylic acid sodium salt,Alizarin Yellow 2G,Metachrome Yellow,Mordant Yellow 1
- Synonyms
- 5-(3-Nitrophenylazo)salicylic acid sodium saltAlizarin Yellow 2GMetachrome YellowMordant Yellow 1

pH Indicator
Alizarin Yellow GG serves as a pH indicator, exhibiting a colour transition within a specific pH range. This property makes it invaluable for monitoring the acidity or alkalinity of solutions during chemical analyses and titrations.
Histological Staining
In the fields of hematology and histology, Alizarin Yellow GG is utilised as a stain. It aids in differentiating cellular structures and tissues, contributing to microscopic examination and diagnostic processes in biological and medical research.
Analytical Reagent
This compound functions as a key analytical reagent in various laboratory settings. Its specific chemical properties allow for its use in qualitative and quantitative analyses, supporting research and development across scientific disciplines.
| Molecular weight | 309.21 |
|---|---|
| Empirical formula | C13H8N3NaO5 |
| Composition | Dye content, 50% |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Colour Index Number | 14025 |
|---|---|
| Absorption | λmax 362 nm |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Alizarin Yellow GG used for?
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Alizarin Yellow GG is primarily used as a pH indicator in titrations and as a stain in histology and hematology for biological research.
What are the CAS number and chemical formula for Alizarin Yellow GG?
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The CAS number for Alizarin Yellow GG is 584-42-9, and its chemical formula is C13H8N3NaO5.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Alizarin Yellow GG with a dye content of 50%. We do not represent this product as USP, BP, or EP grade; it is supplied for research and technical applications.
What are the safety precautions for handling Alizarin Yellow GG?
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Handling Alizarin Yellow GG requires appropriate safety measures, including wearing eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended, and the compound is classified under WGK Germany 3.
How is Alizarin Yellow GG packed and shipped?
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Alizarin Yellow GG is carefully packed for export and is available for global shipment by Tech Serve Solutions.
How can I request a sample or a quote for Alizarin Yellow GG?
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To request a sample or a quote for Alizarin Yellow GG, please contact our sales team through the website.
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