3,4-Dimethoxyphenethylamine
3,4-Dimethoxyphenethylamine (CAS 120-20-7) is an organic compound with the linear formula (CH3O)2C6H3CH2CH2NH2 and a molecular weight of 181.23 g/mol. This amine serves as a key precursor in the synthesis of isoquinoline derivatives. Available from Tech Serve Solutions with a purity of 97%, it is valuable for chemical synthesis and research applications in organic chemistry.
- IUPAC
- 2-(3,4-Dimethoxyphenyl)ethylamine,Homoveratrylamine
- Synonyms
- (CH3O)2C6H3CH2CH2NH22-(3,4-Dimethoxyphenyl)ethylamineHomoveratrylamine

Isoquinoline Synthesis Precursor
3,4-Dimethoxyphenethylamine is a crucial intermediate in the synthesis of various isoquinoline compounds. Its structural features facilitate cyclisation reactions to form the core isoquinoline scaffold.
Organic Building Block
As an organic building block, this amine is utilised in complex molecule construction. Its functional groups allow for diverse chemical transformations in multi-step synthetic pathways.
Research and Development
The compound finds application in research laboratories for developing novel chemical entities and exploring reaction methodologies. Its availability aids in advancing organic synthesis studies.
| Molecular weight | 181.23 |
|---|---|
| Linear formula | (CH3O)2C6H3CH2CH2NH2 |
| Assay | 97% |
| Boiling point | 188 °C/15 mmHg(lit.) |
| Density | 1.074 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.546(lit.) |
| Application | Precursor for the synthesis of isoquinolines.1,2,3 |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 130 °C / 266 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36/37/38 |
| Safety statements (S) | 26-36 |
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 3,4-Dimethoxyphenethylamine used for?
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3,4-Dimethoxyphenethylamine (CAS 120-20-7) is primarily used as a precursor in the synthesis of isoquinolines and as a versatile organic building block in chemical research and development.
What are the CAS number and chemical formula for 3,4-Dimethoxyphenethylamine?
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The CAS number for 3,4-Dimethoxyphenethylamine is 120-20-7, and its linear chemical formula is (CH3O)2C6H3CH2CH2NH2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3,4-Dimethoxyphenethylamine with an assay of 97%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade unless explicitly stated. It is suitable for research and technical applications.
What are the primary safety hazards associated with 3,4-Dimethoxyphenethylamine?
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3,4-Dimethoxyphenethylamine is classified with the GHS07 symbol and carries a Warning signal word. It is harmful if swallowed (H302), causes skin irritation (H315), causes serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including eyeshields, gloves, and suitable respiratory protection, must be used.
How is 3,4-Dimethoxyphenethylamine packed and shipped?
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3,4-Dimethoxyphenethylamine is carefully packed to ensure safe handling and transport. As a global supplier, Tech Serve Solutions adheres to all relevant regulations for shipping chemical products internationally.
How can I request a sample or a quote for 3,4-Dimethoxyphenethylamine?
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To request a sample or a quotation for 3,4-Dimethoxyphenethylamine, please contact our sales department via the website or by telephone, providing your specific requirements and delivery details.
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