Sulfamerazine

May be stored at 4 °C for short-term only. For long-term storage and to avoid repeated freezing and thawing, aliquot and store at -20 °C. Aliquots are stable for at least 12 months at -20 °C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

Cross-Reactivity: Sulphamerazine 100; Sulphadiazine 3.5; Sulphamethazine 1.0; Sulphathiazole <0.2; Sulphachloropyridazine <0.2; Sulphamethoxypyridazine <0.2; Sulphisoxazole <0.2; Sulphamethizole <0.2; Sulphadimethoxine <0.2; Sulphaquinoxaline <0.2; Sulphanilamide <0.2; Sulphapyradine <0.2; Sulphaguanidine <0.2; Sulphadoxine <0.2.