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| Item | Specifications |
| Appearance | White or off-white crystal or crystalline powder |
| Identification | Chromogenic reaction: positive reaction |
| HPLC: Under the content determination of record chromatograph chart, the main peak of retention time of test sample solution should be consistent with the main peak retention time of the reference substance solution | |
| Infrared absorption spectrum of the product shall be consistent with the reference substance of the map. | |
| Specific rotation | +9.5° -+11 |
| Clarify and color | Solution should be clarified, such as turbidity compared with 1 turbidity standard solution may not be thicker |
| Heavy metals | ≤10ppm |
| PH | 5.0-6.5 |
| Loss on dry | ≤0.5% |
| Residue on ignition | ≤0.1% |
| Fe | ≤0.001% |
| Arsenic | ≤0.0001% |
| Sulfate | ≤0.02% |
| Chloride | ≤0.02% |
| Ammonium salt | ≤0.08% |
| Related substances | Cyclo-L-anayl-L-glutamine≤0.2% |
| Cyclo-L-anayl-L-Glutamyl≤0.04% | |
| L-pyroglutamyl-L-amine≤0.15% | |
| L- L-pyroglutamic≤0.05% | |
| D-ananyl-L-Glutamine≤0.05% | |
| L-ananyl-L-Glutamine≤0.5% | |
| Any unspecified impurity≤0.1% | |
| Any unspecified total impurity≤0.1% | |
| Residual solvent | Methanol ≤3000ppm |
| Toluene≤890ppm | |
| Ethanol≤5000ppm | |
| Tetrahydrofuran≤720ppm | |
| Bacterial endotoxin | ≤0.05EU/mg |
| Assay (on dried basis) | ≥98.5% |
| Microbial limit test | Total aerobes counts≤1000cfu/g |
| Mold &Yeast≤100cfu/g | |
| Escherichia coli: every 1g may not be detected |
Usage
Glutamine substitute used in mammalian cell culture medium
Used as raw material of cosmetics.
Storage
It should be sealed and shaded to be stored in a dry, cool, well ventilated place.
| Item | Specifications |
| Appearance | White or off-white crystal or crystalline powder |
| Identification | Chromogenic reaction: positive reaction |
| HPLC: Under the content determination of record chromatograph chart, the main peak of retention time of test sample solution should be consistent with the main peak retention time of the reference substance solution | |
| Infrared absorption spectrum of the product shall be consistent with the reference substance of the map. | |
| Specific rotation | +9.5° -+11 |
| Clarify and color | Solution should be clarified, such as turbidity compared with 1 turbidity standard solution may not be thicker |
| Heavy metals | ≤10ppm |
| PH | 5.0-6.5 |
| Loss on dry | ≤0.5% |
| Residue on ignition | ≤0.1% |
| Fe | ≤0.001% |
| Arsenic | ≤0.0001% |
| Sulfate | ≤0.02% |
| Chloride | ≤0.02% |
| Ammonium salt | ≤0.08% |
| Related substances | Cyclo-L-anayl-L-glutamine≤0.2% |
| Cyclo-L-anayl-L-Glutamyl≤0.04% | |
| L-pyroglutamyl-L-amine≤0.15% | |
| L- L-pyroglutamic≤0.05% | |
| D-ananyl-L-Glutamine≤0.05% | |
| L-ananyl-L-Glutamine≤0.5% | |
| Any unspecified impurity≤0.1% | |
| Any unspecified total impurity≤0.1% | |
| Residual solvent | Methanol ≤3000ppm |
| Toluene≤890ppm | |
| Ethanol≤5000ppm | |
| Tetrahydrofuran≤720ppm | |
| Bacterial endotoxin | ≤0.05EU/mg |
| Assay (on dried basis) | ≥98.5% |
| Microbial limit test | Total aerobes counts≤1000cfu/g |
| Mold &Yeast≤100cfu/g | |
| Escherichia coli: every 1g may not be detected |
Usage
Glutamine substitute used in mammalian cell culture medium
Used as raw material of cosmetics.
Storage
It should be sealed and shaded to be stored in a dry, cool, well ventilated place.
