2-Azetidinone
2-Azetidinone (CAS: 930-21-2, Formula: C3H5NO) is a cyclic amide, specifically a β-lactam. With a molecular weight of 71.08 g/mol, this compound is a versatile building block in organic synthesis. It is notable for its use in the creation of various organic compounds and is soluble in both water and organic solvents like chloroform, making it amenable to diverse reaction conditions. Tech Serve Solutions supplies 2-Azetidinone with an assay of 98%.
- IUPAC
- β-Propiolactam,2-Azacyclobutanone
- Synonyms
- β-Propiolactam2-Azacyclobutanone

Organic Synthesis Intermediate
2-Azetidinone serves as a fundamental building block in the synthesis of complex organic molecules. Its strained four-membered ring offers unique reactivity for constructing various chemical structures.
Lactam Chemistry Research
As a simple β-lactam, it is a key compound for studying lactam ring-opening reactions and the development of novel synthetic methodologies.
Precursor for Heterocyclic Compounds
The azetidinone structure can be modified and incorporated into larger molecules, acting as a precursor for a range of heterocyclic compounds with potential biological activity.
| Molecular weight | 71.08 |
|---|---|
| Empirical formula | C3H5NO |
| Assay | 98% |
| Boiling point | 106 °C/15 mmHg(lit.) |
| Solubility | chloroform: very soluble(lit.)ethanol: very slightly soluble(lit.)water: very soluble(lit.) |
| Storage temperature | 2-8°C |
| Melting point | 74-76 °C(lit.) |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| 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 |
|---|---|
| Transport (UN / ADR) | UN 3263 8 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-36/37/39-45 |
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 2-Azetidinone used for?
+
2-Azetidinone is primarily used as a building block in organic synthesis and for research into lactam chemistry and the preparation of heterocyclic compounds.
What are the CAS number and formula for 2-Azetidinone?
+
The CAS number for 2-Azetidinone is 930-21-2, and its molecular formula is C3H5NO.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 2-Azetidinone with a minimum purity of 98%. This product is supplied for research and laboratory use. Tech Serve Solutions does not represent this product as meeting USP, BP, EP, or other pharmacopoeia standards.
What are the primary hazards associated with 2-Azetidinone?
+
2-Azetidinone is classified as Danger, with hazard statement H314, indicating it causes severe skin burns and eye damage. Appropriate personal protective equipment, including eye protection, gloves, and respiratory protection, must be used. Handle with extreme care in a well-ventilated area.
How is 2-Azetidinone handled and shipped?
+
2-Azetidinone requires storage at 2-8°C. It is shipped according to international regulations for hazardous materials, identified as UN 3263, Class 8, Packing Group II.
How can I request a sample or quote for 2-Azetidinone?
+
To request a sample or obtain a quote for 2-Azetidinone, please contact our sales team via the website or by phone. Please specify the required quantity and your shipping destination.
▶ 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