3-Ethoxyaniline
3-Ethoxyaniline (CAS: 621-33-0, C2H5OC6H4NH2) is a crucial organic building block with a molecular weight of 137.18 g/mol. This aromatic amine derivative serves as a valuable intermediate in chemical synthesis, particularly in the creation of more complex nitrogen-containing compounds. Its properties make it suitable for research and development applications, contributing to advancements in material science and organic chemistry. Tech Serve Solutions supplies this compound for various industrial and laboratory purposes.
- IUPAC
- 3-Ethoxyaniline,m-Phenetidine
- Synonyms
- m-Phenetidine

Synthesis of Heterocyclic Compounds
3-Ethoxyaniline is utilised as a starting reagent in the synthesis of complex heterocyclic molecules, such as tetrahydroacridinylhydrazides, contributing to the development of novel chemical entities.
Organic Synthesis Intermediate
As a functionalised aniline derivative, it acts as a versatile building block in multi-step organic syntheses, enabling the introduction of the ethoxy and amino functionalities into target molecules.
Research and Development
This compound is employed in laboratory settings for research into new synthetic methodologies and the exploration of novel chemical structures with potential applications across various scientific disciplines.
| Molecular weight | 137.18 |
|---|---|
| Linear formula | C2H5OC6H4NH2 |
| Assay | 98% |
| Boiling point | 248 °C(lit.) |
| Density | 1.032 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.566(lit.) |
| Application | 3-Ethoxyaniline was used as starting reagent in the synthesis of 1,2,3,4-tetrahydroacridinylhydrazides1. |


Hazard statements
- H301Toxic if swallowed
- H311Toxic in contact with skin
- H331Toxic if inhaled
- H373May cause damage to organs through prolonged exposure
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- 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 | 113 °C / 235.4 °F |
| Transport (UN / ADR) | UN 2311 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 23/24/25-33 |
| Safety statements (S) | 28-36/37/39-45 |
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 3-Ethoxyaniline used for?
+
3-Ethoxyaniline is used as a starting reagent in the synthesis of compounds like 1,2,3,4-tetrahydroacridinylhydrazides and serves as a general intermediate in organic synthesis and research.
What is the CAS number and chemical formula for 3-Ethoxyaniline?
+
The CAS number for 3-Ethoxyaniline is 621-33-0, and its chemical formula is C2H5OC6H4NH2.
What grade and purity does Tech Serve Solutions supply for 3-Ethoxyaniline?
+
Tech Serve Solutions supplies 3-Ethoxyaniline with a minimum purity of 98%. This product is intended for research and industrial use and is not supplied as USP, BP, EP, or pharmaceutical grade.
How should 3-Ethoxyaniline be handled safely?
+
3-Ethoxyaniline is classified as acutely toxic if swallowed, in contact with skin, or if inhaled (H301-H311-H331), and may cause damage to organs through prolonged or repeated exposure (H373). Handling requires stringent safety precautions including appropriate personal protective equipment such as safety goggles, face shields, chemical-resistant gloves, and suitable respiratory protection. Work should be conducted in a well-ventilated area or fume hood.
Is 3-Ethoxyaniline a controlled substance?
+
Based on the provided data, 3-Ethoxyaniline (CAS 621-33-0) is not indicated as a controlled substance in major regulatory frameworks. However, users should always verify local regulations.
How is 3-Ethoxyaniline packed and exported?
+
3-Ethoxyaniline is packed in compliance with UN 2311, Hazard Class 6.1, Packing Group III regulations, ensuring safe transport. Tech Serve Solutions exports fine chemicals globally, adhering to all relevant shipping and customs requirements.
How can I request a quote or sample for 3-Ethoxyaniline?
+
To request a quote or a sample of 3-Ethoxyaniline, please contact our sales department through the website or by calling our customer service line, providing your contact details and quantity requirements.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis