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Online Edition: "Specifications for Flavourings"
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| Flavouring |
2-Propionylpyrroline |
| Synonym(s) |
1-(3,4-Dihydro-2H-pyroll-5-yl)-1-propanone
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| Latest JECFA evaluation |
2005 (Session 65)
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| Status of specification |
Full |
| Chemical name |
2-Propionyl-1-pyrroline
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| JECFA number |
1605 |
| CAS number |
133447-37-7
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| FEMA number |
4063
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| COE number |
-
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| FLAVIS number |
-
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| Molecular weight |
125.17 |
| Chemical formula |
C7H11ON
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| Physical form/odour |
Yellowish liquid; Fishy aroma |
| Solubility |
Soluble in heptane, triacetin |
| Solubility in ethanol |
Soluble |
| Boiling point (°C) |
89-90° (1 mm Hg) |
| Assay min % |
95% |
| Acid value max |
- |
| Refractive index |
1.446-1.452 |
| Specific gravity |
0.979-0.985 |
| Other requirements |
[Material is provided as a 1% solution in vegatable oil triglyceride] |
| ID Test |
HNMR IR MS |
| Spectrum |
http://www.fao.org/ag/agn/jecfa-flav/img/img/1605-hnmr.gif
http://www.fao.org/ag/agn/jecfa-flav/img/img/1605-ir.gif
http://www.fao.org/ag/agn/jecfa-flav/img/img/1605-ms.gif
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