Basic information
- Name:
Azetidine
- CAS No.:
503-29-7
- Molecular Structure:

- Formula:
- C3H7N
- Molecular Weight:
- 57.09
- Deleted CAS:
- 156423-81-3
- Synonyms:
- 1,3-Propylenimine;Azacyclobutane;Azete, tetrahydro-;Trimethylenimine;
- EINECS:
- 207-963-8
- Density:
- 0.851 g/cm3
- Boiling Point:
- 64.9 °C at 760 mmHg
- Solubility:
- miscible in water
- Appearance:
- clear colorless liquid
- Hazard Symbols:
F,
C- Risk Codes:
- 11-34
- Safety Description:
- 16-26-36/37/39-45 Details
- Transport Information:
- UN 2733 3/PG 2
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Specification
The Azetidine, with the CAS registry number 503-29-7 and EINECS registry number 207-963-8, is a heterocyclic organic compound. And the molecular formula of this chemical is C3H7N. It is a kind of clear colorless liquid, and belongs to the class of four membered rings and it contains a nitrogen atom. It is sensitive to moisture and air, and should be stored at 2-8°C with the shielding gas argon.
The physical properties of Azetidine are as following: (1)ACD/LogP: -0.20; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -3.3; (4)ACD/LogD (pH 7.4): -3.23; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 1; (8)ACD/KOC (pH 7.4): 1; (9)#H bond acceptors: 1; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 0; (12)Polar Surface Area: 3.24 Å2; (13)Index of Refraction: 1.426; (14)Molar Refractivity: 17.18 cm3; (15)Molar Volume: 67 cm3; (16)Polarizability: 6.81×10-24cm3; (17)Surface Tension: 27.1 dyne/cm; (18)Density: 0.851 g/cm3; (19)Enthalpy of Vaporization: 30.69 kJ/mol; (20)Boiling Point: 64.9 °C at 760 mmHg; (21)Vapour Pressure: 162 mmHg at 25°C.
Uses of Azetidine: It can react with bis-(3-amino-propyl)-amine to produce N,N'-bis-(3-amino-propyl)-propanediyldiamine. This reaction will need catalyst palladium black. The reaction time is 12 hours with temperature of 120°C, and the yield is about 75%.

You should be cautious while dealing with this chemical. It is a kind of highly flammale chemical which may cause burns. Therefore, you had better take the following instructions: Wear suitable protective clothing, gloves and eye/face protection, and in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice; Keep away from sources of ignition - No smoking; In case of accident or if you feel unwell, seek medical advice immediately (show label where possible).
You can still convert the following datas into molecular structure:
(1)SMILES: N1CCC1
(2)InChI: InChI=1/C3H7N/c1-2-4-3-1/h4H,1-3H2
(3)InChIKey: HONIICLYMWZJFZ-UHFFFAOYAE

