L-Cystine

0.1 M HCl : 2.5 mg/mL (ultrasonic; adjust pH to 2 with HCl) |0.1 M NaOH : 3.33 mg/mL (ultrasonic; warming; adjust pH to 11 with NaOH; heat to 70°C) |DMSO : < 1 mg/mL|H2O : 33.33 mg/mL (ultrasonic; adjust pH to 11 with 1 M NaOH)

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