N-Ethyl-o-toluidine
N-Ethyl-o-toluidine (CAS 94-68-8) is an organic compound with the formula CH3C6H4NHC2H5 and a molecular weight of 135.21 g/mol. This aromatic amine serves as a specialised stain, primarily utilised in proteomics research. Its properties make it valuable for specific laboratory applications, particularly in the fields of cell biology and histology.
- IUPAC
- 2-(Ethylamino)toluene,N-Ethyl-2-methylaniline,N-Ethyl-2-aminotoluene
- Synonyms
- 2-(Ethylamino)tolueneN-Ethyl-2-methylanilineN-Ethyl-2-aminotoluene

Proteomics Research
N-Ethyl-o-toluidine functions as a stain in proteomics research. It aids in visualising and analysing protein structures and interactions within cellular systems.
Cell Biology Applications
As a stain, this compound finds use in cell biology studies. It can be employed for differential staining techniques to highlight cellular components.
Histology and Hematology
Within histology and hematology, N-Ethyl-o-toluidine is applicable as a staining agent. It assists in the microscopic examination of tissue and blood samples.
| Molecular weight | 135.21 |
|---|---|
| Linear formula | CH3C6H4NHC2H5 |
| Assay | 97% |
| Boiling point | 218 °C(lit.) |
| Density | 0.938 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.547(lit.) |
| Application | N-Ethyl-o-toluidine (2-(Ethylamino)toluene) is a stain used for proteomics research. |

Hazard statements
- H301Toxic if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
- P311Call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 89 °C / 192.2 °F |
| Transport (UN / ADR) | UN 2754 6.1 / PGII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | T |
| Risk statements (R) | 23/24/25-36/37/38 |
| Safety statements (S) | 26-36/37/39-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
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 N-Ethyl-o-toluidine used for?
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N-Ethyl-o-toluidine is primarily used as a stain in proteomics research, cell biology, and histology.
What are the CAS number and chemical formula for N-Ethyl-o-toluidine?
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The CAS number for N-Ethyl-o-toluidine is 94-68-8, and its chemical formula is CH3C6H4NHC2H5.
What grade and purity does Tech Serve Solutions supply for N-Ethyl-o-toluidine?
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Tech Serve Solutions supplies N-Ethyl-o-toluidine with an assay of 97%. This product is supplied for laboratory and research use. TSS does not represent it as USP, BP, EP, or any other pharmacopoeial grade.
What are the primary safety hazards associated with N-Ethyl-o-toluidine?
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N-Ethyl-o-toluidine is classified with GHS06 symbol and a 'Danger' signal word. It is acutely toxic if swallowed, in contact with skin, or if inhaled (H301 + H311 + H331). It also causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection, is essential during handling.
How is N-Ethyl-o-toluidine shipped by Tech Serve Solutions?
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N-Ethyl-o-toluidine is regulated for transport under UN 2754, Hazard Class 6.1, Packing Group II. As a global supplier and exporter, Tech Serve Solutions adheres to all relevant shipping and handling regulations.
How can I request a sample or quote for N-Ethyl-o-toluidine?
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To request a sample or obtain a quotation for N-Ethyl-o-toluidine, please contact our sales department through the website or direct email, providing your specific requirements.
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