 |
L-Pyroglutamic Acid
| Chemical Name£º |
(S)-(-)-2-Pyrrolidone-5-carboxylic acid |
| Structure Formula£º |
|
| Molecular Formula£º |
C5H7NO3 |
| Molecular Weight£º |
115.13 |
| Cas No£º |
[98-79-3] |
| |
|
| Test Items |
Standard |
| Appearance |
98.0 to 101.0% |
| Specific Rotation [¦Á]20/D |
-10.5 c = 5% in water |
| Melting point |
155-158 |
| Chloride (Cl) |
Not more than 0.10% |
| Heavy Metals (Pb) |
Not more than 10 PPM |
| Loss on Drying |
Not more than 0.20% |
| Residue on Ignition (Sulfate) |
Not more than 0.20% |
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