Oil Blue N
Oil Blue N (CAS: 2646-15-3), with the molecular formula C24H30N2O2 and a molecular weight of 378.51 g/mol, is a synthetic dye. It is primarily recognised for its utility in various staining applications within biological and histological contexts. This compound, identified by Colour Index Number 61555, offers distinct spectral absorption properties, making it valuable for specific diagnostic and research purposes.
- IUPAC
- Solvent Blue 14

Histological Staining
Oil Blue N serves as a stain in histology, enabling the visualisation of cellular structures. Its properties are particularly useful for differentiating tissues and cellular components under microscopic examination.
Cell Biology Research
In cell biology, Oil Blue N can be employed as a vital or supravital stain to observe cellular processes and identify specific cellular components. Its spectral characteristics are essential for accurate detection and analysis.
Dye Applications
As a synthetic dye (Colour Index 61555), Oil Blue N finds general application in laboratories requiring specific coloration for analytical or preparative procedures. It is a key reagent for research and diagnostic applications.
| Molecular weight | 378.51 |
|---|---|
| Empirical formula | C24H30N2O2 |
| Melting point | 112-114 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/38 |
| Safety statements (S) | 26 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Colour Index Number | 61555 |
|---|---|
| Absorption | λmax 596 nmλmax 644 nm (2nd) |
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 Oil Blue N used for?
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Oil Blue N is used for histological staining and in cell biology research to visualise cellular structures and components. It is also broadly applied as a laboratory dye.
What are the CAS number and formula for Oil Blue N?
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The CAS number for Oil Blue N is 2646-15-3, and its molecular formula is C24H30N2O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Oil Blue N (CAS 2646-15-3) typically as a technical or research grade. The specific assay and purity are detailed in the product's Certificate of Analysis. We do not represent this product as USP, BP, EP, or pharmacopoeia grade unless explicitly stated in the specifications.
How should Oil Blue N be handled safely?
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Oil Blue N is classified with GHS07 and a 'Warning' signal word. It causes skin irritation (H315) and serious eye irritation (H319). Handle with appropriate personal protective equipment, including gloves and eye protection, and ensure good ventilation. Refer to the Safety Data Sheet (SDS) for comprehensive handling instructions.
How is Oil Blue N packed and shipped?
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Oil Blue N is carefully packed in compliance with international shipping regulations for chemical substances. Tech Serve Solutions is a global supplier and exporter, ensuring secure and appropriate packaging for transport.
How can I request a sample or quote for Oil Blue N?
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To request a sample or a quote for Oil Blue N (CAS 2646-15-3), please use the contact form on our website or contact our sales team directly with your inquiry.
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