| Product Name |
L-Tryptophan,
meets EP, JP, USP testing specifications, cell culture tested, ≥98.5%, from non-animal source |
| Product Number |
T8941 |
| Product Brand |
Sigma |
| CAS Number |
73-22-3 |
| Molecular Formula |
C11H12N2O2 |
| Molecular Weight |
204.23 |
| |
| TEST |
SPECIFICATION |
| ORIGIN |
MUST BE NON-ANIMAL SOURCE |
| APPEARANCE |
WHITE TO YELLOW CRYSTALLINE POWDER |
| IDENTIFICATION BY IR |
CONSISTENT WITH STRUCTURE |
| SOLUBILITY |
CLEAR SOLUTION AT 0.5G TO 20ML OF 2M HYDROCHLORIC ACID |
| APPEARANCE OF SOLUTION |
CLEAR SOLUTION AT 0.1G / 10ML 1M HCL COLOR NOT MORE INTENSE THAN STANDARD |
| SPECIFIC ROTATION * |
-30.5 TO -32.5 DEG (20DEGC/EP, JP) |
|
-29.4 TO -32.8 DEG (25DEGC/USP) |
|
* C = 1 IN WATER |
| CHLORIDE |
NMT 0.020% |
| AMMONIUM |
NMT 0.02% |
| SULFATE |
NMT 0.020% |
| IRON |
NMT 20 PPM |
| HEAVY METALS |
NMT 10 PPM |
| ARSENIC |
NMT 1 PPM |
| LOSS ON DRYING |
NMT 0.20% |
| RESIDUE ON IGNITION |
NMT 0.10% |
| ORGANIC VOLATILES IMPURITIES |
CONFORMS |
| NINHYDRIN-POSITIVE SUBSTANCES (OTHER AMINO ACIDS) |
CONFORMS |
| PH TEST |
5.5 TO 6.4 (1% IN WATER) |
| ASSAY (DRY BASIS) |
99.0 TO 101.0% |
| 1,1'-ETHYLIDENEBIS (TRYPTOPHAN) AND OTHER RELATED |
CONFORMS |
| ENDOTOXIN ASSAY |
<1 EU/MG |
| CELL CULTURE TEST |
PASS |
| NOTE |
MEETS USP, EP AND JP TESTING SPECIFICATIONS |
| EXPIRATION DATE |
48 MONTHS |
| DOCUMENT # |
T8941:05/03-3 |
Certificate of Analysis
Certificate of Origin
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