| Product Name | Cystathionine, ≥90% (HPLC) |
| Product Number | C3633 |
| Product Brand | SIGMA |
| CAS Number | 535-34-2 |
| Molecular Weight | 222.26 |
| TEST | SPECIFICATION |
| APPEARANCE | WHITE TO OFF-WHITE POWDER |
| SOLUBILITY | CLEAR COLORLESS TO LIGHT YELLOW SOLUTION AT 50MG/ML IN 1M HYDROCHLORIC ACID |
| IDENTITY | CONSISTENT WITH STRUCTURE BY IR OR NMR |
| PURITY BY THIN LAYER CHROMATOGRAPHY | MINIMUM 90% |
| QUALITTATIVE IDENTITY BY HPLC | MIXTURE OF 4 STEREOISOMERS: L-, D- L-ALLO AND D-ALLO-CYSTATHIONINE |
| PURITY BY HPLC | MINIMUM 90% |
| RECOMMENDED RETEST | 2 YEARS |
| DOCUMENT # C3633/11/30/98/2 | |
