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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CAS 1193111-39-5
Doxorubicin-SMCC
pharmaceutical intermediate
4-fluorobenzonitrile
pharmaceutical intermediate
1,3-Cycloheptanedione
pharmaceutical intermediate
6-Chloro-4-(2-fluorophenyl)-2-methylquinazoline
pharmaceutical intermediate
1-(2,3-Dichlorophenyl)piperazine hydrochloride
pharmaceutical intermediate
Sulfo-SNPB
pharmaceutical intermediate
N-Succinimidyl 4-(2-pyridyldithio)butanoate
research compound
1-(2,5-dioxopyrrolidin-1-yl)oxy-1-oxo-4-(pyridin-2-yldisulfanyl)butane-2-sulfonic acid
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