1,3-Diallylurea
1,3-Diallylurea (CAS: 1801-72-5) is an organic compound with the linear formula H₂C=CHCH₂NHCONHCH₂CH=CH₂ and a molecular weight of 140.18 g/mol. This urea derivative functions as a versatile building block in organic synthesis. It is particularly valuable as an intermediate for the preparation of N-substituted heterocyclic compounds, facilitating the development of complex molecular architectures in chemical research and development.
- Synonyms
- H2C=CHCH2NHCONHCH2CH=CH2

Synthesis of Heterocycles
1,3-Diallylurea serves as a key intermediate in the synthesis of various N-substituted heterocyclic compounds. Its reactive allyl groups can be employed in cyclisation reactions to form diverse ring systems.
Organic Building Block
As a difunctional organic building block, it provides two reactive allyl groups and a central urea moiety, enabling its incorporation into a wide range of synthetic targets.
Chemical Synthesis Intermediate
This compound is utilised in multi-step organic syntheses where precise functional group manipulation is required, contributing to the construction of more complex molecules.
| Molecular weight | 140.18 |
|---|---|
| Linear formula | H2C=CHCH2NHCONHCH2CH=CH2 |
| Assay | 98% |
| Application | Intermediate for the synthesis of N-substituted heterocycles. |
| Melting point | 90-93 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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 1,3-Diallylurea used for?
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1,3-Diallylurea is primarily used as an intermediate in the synthesis of N-substituted heterocycles and serves as a versatile organic building block in chemical synthesis.
What is the CAS number and formula for 1,3-Diallylurea?
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The CAS number for 1,3-Diallylurea is 1801-72-5, and its linear formula is H₂C=CHCH₂NHCONHCH₂CH=CH₂.
What grade and purity does Tech Serve Solutions supply for 1,3-Diallylurea?
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Tech Serve Solutions supplies 1,3-Diallylurea with a minimum purity of 98%. This product is supplied for research and development purposes and is not represented as USP, BP, EP, or any other pharmacopoeia grade.
What are the safety considerations when handling 1,3-Diallylurea?
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Handling 1,3-Diallylurea requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used if respiratory protection is needed. The substance has a WGK Germany rating of 3, indicating it is hazardous to water.
How is 1,3-Diallylurea packed and exported?
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1,3-Diallylurea is carefully packed to ensure its integrity during transit. Tech Serve Solutions exports this chemical globally, adhering to all relevant shipping and customs regulations.
How can I request a quote or sample for 1,3-Diallylurea?
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To request a quote or a sample of 1,3-Diallylurea, please use the contact form on our website or reach out to our sales team directly.
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