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N-Phthaloyl-L-Glutamic Anhydride
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| Structural Formula |
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| Chemical Name |
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2-[(3S)-tetrahydro-2,6-dioxo-2H-pyran-3-yl]-1H-Isoindole-1,3-(2H)-dione |
| CAS No. |
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25830-77-7 |
| Synonym |
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NPLGA, Phthalyl-L-glutamic acid anhydride |
| Molecular formula |
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C13H9NO5 |
| Molecular weight |
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259.21 |
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| Data sheet |
| Appearance |
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White to pale yellow crystalline powder |
| Solubility |
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Soluble in 1,4 dioxane, insoluble in water |
| Melting point |
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Between 196 - 201°C |
| Sp. opt. rotn. |
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Between -41° and -43° (C=3, Dioxane) |
| Purity by GC |
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Min. 99.0% |
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| Application / Use |
| Used in preparing γ-glutamyl derivatives of amino acids. This reduces bitterness of amino acids when used as nutritional food additives and for taste modifying effects ("kokumi" flavour compounds). |
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| Storage Conditions |
| Store in tightly sealed plastic container in a cool, dry place. Avoid excessive heat and exposure to light. Keep away from oxidizing agents. |
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| Shelf life |
| 12 months under good storage conditions |
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