Sulfo-SPDB is a sulfonated heterobifunctional crosslinking reagent used as a pharmaceutical intermediate in the manufacture of antibody-drug conjugates. It features a pyridyl disulfide moiety and an N-hydroxysuccinimide ester, enabling controlled conjugation of cytotoxic payloads to antibodies.
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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