Orange G
Orange G (CAS 1936-15-8), a disodium salt with the empirical formula C16H10N2Na2O7S2 and a molecular weight of 452.37 g/mol, is a synthetic azo dye. It is recognised for its utility as a collagen stain, primarily employed in histological preparations to highlight connective tissues. This dye is also a component in specialised staining techniques, contributing to the detailed visualisation of cellular structures in various biological research applications.
- IUPAC
- 1-Phenylazo-2-naphthol-6,8-disulfonic acid disodium salt,7-Hydroxy-8-phenylazo-1,3-naphthalenedisulfonic acid disodium salt,Acid Orange 10,Wool Orange 2G
- Synonyms
- Acid Orange 10Wool Orange 2G1-Phenylazo-2-naphthol-6,8-disulfonic acid disodium salt7-Hydroxy-8-phenylazo-1,3-naphthalenedisulfonic acid disodium salt
Collagen Staining
Orange G serves as an effective stain for collagen fibres within connective tissues. Its selective affinity allows for clear differentiation of collagen bundles in histological slides.
Histology and Cell Biology
This dye is used in various staining protocols for the study of tissue morphology and cellular components. It is particularly noted for its use in Kornhauser′s quadruple stain, alongside other dyes for comprehensive tissue staining.
Research Reagent
As a laboratory reagent, Orange G is valuable for researchers in cell biology and histology requiring specific staining capabilities for microscopic analysis.
| Molecular weight | 452.37 |
|---|---|
| Empirical formula | C16H10N2Na2O7S2 |
| Solubility | H2O: soluble1 mg/mL |
| Application | Collagen stain for connective tissue. Used with Orcein, Alizarin Blue 2B, and Fast Green FCF in Kornhauser′s quadruple stain for most elementary structures of tissues. |
| 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 | 16230 |
|---|---|
| Absorption | extinction/246-250 nm, H2O ≥20500extinction/329-331 nm, H2O ≥10000extinction/473-479 nm, H2O ≥17000λmax 475 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 Orange G used for?
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Orange G is primarily used as a collagen stain for connective tissue. It is also employed in specialised staining techniques, such as Kornhauser′s quadruple stain, for the visualisation of elementary structures in tissues.
What is the CAS number and formula for Orange G?
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The CAS number for Orange G is 1936-15-8, and its empirical formula is C16H10N2Na2O7S2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Orange G meeting specific research and laboratory standards. The exact assay and purity are detailed in the product specifications. TSS does not represent this product as USP, BP, or EP grade.
How should Orange G be handled safely?
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Handle Orange G with appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. Refer to the safety data sheet for comprehensive handling instructions.
How is Orange G packed, shipped, and exported?
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Orange G is carefully packed to ensure stability and integrity during transit. Tech Serve Solutions expertly handles the export of this chemical globally, adhering to all relevant regulations.
How can I request a quote or sample for Orange G?
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To request a quote or a sample of Orange G, please contact our sales department through the website or by calling our dedicated line, specifying your requirements.
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