1 M HCl solution
| Reagent | Final concentration | Notes |
|---|---|---|
| Milli-Q or HPLC grade water | 90% | N/A |
| Hydrochloric acid (10 N) | 1 M | This lowers the pH so that cystine can be dissolved at a high concentration. |
Store at 25°C up to 12 months
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