2-Azacyclononanone
Synonym(s):8-Aminooctanoic acid lactam;Aza-2-cyclononanone;Caprylolactam
- CAS NO.：935-30-8
- Empirical Formula: C8H15NO
- Molecular Weight: 141.21
- MDL number: MFCD00003273
- EINECS: 213-300-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-09-12 18:28:28
What is 2-Azacyclononanone?
Chemical properties
White to pale yellow crystalline powder
The Uses of 2-Azacyclononanone
2-Azacyclononanone has been used as an internal standard liquid chromatography-ultraviolet detection method for the determination of caprolactam in the aqueous food stimulant 3% acetic acid (w/v).
General Description
2-Azacyclononanone forms complexes with hydrated lanthanides trifluoroacetate in ethanol. It reacts with mercury(II)acetate and erbium(III)nitrate in methanol to yield the heterocyclic complex .
Purification Methods
Dissolve it in CHCl3, decolorise it with charcoal, evaporate to dryness and recrystallise it from CHCl3/hexane. Sublime it at high vacuum. The oxime has m 117o (from *C6H6 or pet ether). [Guggisberg Helv Chim Acta 61 1050 1978, Olah et al. Synthesis 538 1979, Behringer & Meier Justus Liebigs Ann Chem 607 67 1957, Beilstein 21 III/V 3260.]
Properties of 2-Azacyclononanone
| Melting point: | 74-76 °C(lit.) |
| Boiling point: | 151 °C / 8mmHg |
| Density | 0.9938 (rough estimate) |
| refractive index | 1.4811 (estimate) |
| storage temp. | Refrigerator, under inert atmosphere |
| solubility | Soluble in methanol (almost transparency). |
| pka | 16.61±0.20(Predicted) |
| form | Solid |
| color | White to Off-White |
| BRN | 109775 |
| Stability: | Hygroscopic |
| CAS DataBase Reference | 935-30-8(CAS DataBase Reference) |
Safety information for 2-Azacyclononanone
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. |
Computed Descriptors for 2-Azacyclononanone
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