4-Dimethylamino-2-methylazobenzene
4-Dimethylamino-2-methylazobenzene (CAS 54-88-6) is a chemical compound with the molecular formula C6H5N=NC6H3(CH3)N(CH3)2 and a molecular weight of 239.32 g/mol. This azo dye serves as a crucial reagent in various scientific disciplines. Its properties make it particularly useful in cell biology and as a stain in hematology and histology, contributing to detailed microscopic analysis and research.
- IUPAC
- N,N-Dimethyl-4-phenylazo-m-toluidine
- Synonyms
- N,N-Dimethyl-4-phenylazo-m-toluidine

Cell Biology Staining
As a specialized dye, 4-Dimethylamino-2-methylazobenzene is employed in cell biology for staining purposes, aiding in the visualisation of cellular structures and processes under microscopic examination.
Histological and Hematological Staining
This compound functions as a stain in hematology and histology, assisting in the differentiation and identification of various cell types and tissue components in biological samples.
Chemical Research
Utilised as a laboratory reagent, it supports diverse research applications requiring azo dyes with specific chromophoric properties for analytical or synthetic studies.
| Molecular weight | 239.32 |
|---|---|
| Linear formula | C6H5N=NC6H3(CH3)N(CH3)2 |
| Melting point | 67-69 °C(lit.) |


Hazard statements
- H302Harmful if swallowed
- H351Suspected of causing cancer
- H413May cause long-lasting harmful effects to aquatic life
Precautionary statements
- P281Use personal protective equipment as required
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-40 |
| Safety statements (S) | 36/37 |
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 4-Dimethylamino-2-methylazobenzene used for?
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4-Dimethylamino-2-methylazobenzene is used as a stain in cell biology, hematology, and histology, and as a general laboratory reagent for chemical research.
What is the CAS number and formula for 4-Dimethylamino-2-methylazobenzene?
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The CAS number is 54-88-6 and the linear formula is C6H5N=NC6H3(CH3)N(CH3)2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical, which is identified by CAS 54-88-6, typically as a technical or research grade reagent. We do not represent it as meeting USP, BP, or EP pharmacopoeia standards unless explicitly stated in the product specifications.
What are the safety considerations for handling 4-Dimethylamino-2-methylazobenzene?
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This compound is classified with GHS symbols GHS07 and GHS08 and carries a warning signal word. It has hazard statements including H302 (Harmful if swallowed) and H351 (Suspected of causing cancer), and H413 (May cause long lasting harmful effects to aquatic life). Appropriate personal protective equipment, such as eyeshields, gloves, and suitable respiratory protection, is essential during handling.
How is 4-Dimethylamino-2-methylazobenzene packed, shipped, and exported?
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Tech Serve Solutions professionally packs, ships, and exports chemicals globally, adhering to all relevant regulations for safe transport.
How can I request a quote or sample for 4-Dimethylamino-2-methylazobenzene?
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To request a quote or a sample of 4-Dimethylamino-2-methylazobenzene (CAS 54-88-6), please contact our sales team via the website or direct inquiry.
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