O-Allylhydroxylamine hydrochloride
O-Allylhydroxylamine hydrochloride (CAS: 38945-21-0), with the linear formula CH2=CHCH2ONH2·HCl and a molecular weight of 109.55 g/mol, is a valuable organic building block. This compound is primarily utilised in chemical synthesis, particularly within the realm of hydroxylamine and nitrogen compound chemistry. Its specific reactivity profile makes it a useful intermediate for introducing the allyloxyamine moiety into more complex molecular structures.
- IUPAC
- O-(2-Propenyl)hydroxylamine hydrochloride
- Synonyms
- O-(2-Propenyl)hydroxylamine hydrochloride

Organic Synthesis Intermediate
O-Allylhydroxylamine hydrochloride serves as a key intermediate in various organic synthesis pathways. It is employed to incorporate the allyloxyamine functional group into target molecules.
Building Block for Heterocycles
This compound can be utilised in the construction of heterocyclic compounds, leveraging its unique amine and ether functionalities for cyclisation reactions.
Reagent in Nitrogen Chemistry
As a derivative of hydroxylamine, it finds applications in specialised nitrogen chemistry, potentially in the formation of nitrogen-containing functional groups or compounds.
| Molecular weight | 109.55 |
|---|---|
| Linear formula | CH2=CHCH2ONH2 · HCl |
| Assay | ≥98.0% (AT) |
| Melting point | ~170 °C (dec.) |

Hazard statements
- 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 | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 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 O-Allylhydroxylamine hydrochloride used for?
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O-Allylhydroxylamine hydrochloride is primarily used as a building block in organic synthesis and as a reagent in nitrogen chemistry. It is useful for introducing the allyloxyamine moiety into target molecules and can be employed in the synthesis of heterocyclic compounds.
What is the CAS number and chemical formula for O-Allylhydroxylamine hydrochloride?
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The CAS number is 38945-21-0 and the linear formula is CH2=CHCH2ONH2·HCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies O-Allylhydroxylamine hydrochloride with a purity of ≥98.0% (AT). This is a technical/research grade product, and TSS does not represent it as USP, BP, EP, or any pharmacopoeia standard.
How should O-Allylhydroxylamine hydrochloride be handled safely?
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O-Allylhydroxylamine hydrochloride is classified with GHS07 warning, indicating hazards H315 (causes skin irritation), H319 (causes serious eye irritation), and H335 (may cause respiratory irritation). Safe handling requires wearing a dust mask (N95 type), eye shields, and gloves. Ensure adequate ventilation and avoid breathing dust.
Is O-Allylhydroxylamine hydrochloride a controlled substance?
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The provided data does not indicate that O-Allylhydroxylamine hydrochloride is a controlled substance.
How is O-Allylhydroxylamine hydrochloride packed, shipped, and exported?
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O-Allylhydroxylamine hydrochloride is carefully packed to maintain its integrity during transit. As a global supplier, Tech Serve Solutions is experienced in exporting chemicals worldwide, adhering to international shipping regulations.
How can I request a sample or quote for O-Allylhydroxylamine hydrochloride?
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To request a sample or a quotation, please contact the Tech Serve Solutions sales team through our website or by phone. Provide the product name and CAS number (38945-21-0) for prompt service.
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