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The Alpha Cystine is a reference material used to calibrate 2400 Series analyzers. Cystine is a combination of carbon (29.99%), hydrogen (5.03%), nitrogen (11.66%), and sulfur (26.69%). This material comes standard in the CHN/S(O) Standards Kit (02400083) and the CHSN 2000 Runs Kit (N2410684). With this part number, you can purchase this material individually to replenish your supplies.

The Combustion Standards Kit includes a 10 cc bottle of Benzoid Acid (02401120), 1 g of Acetanilide (02401121), a vial of the calibration standard Alpha Cystine (N2410324), and a vial of the chemical standard Alpha Sulfamic (N2410501).