Small molecules & peptides

isoSGMIB precursor

Precursor for [¹³¹I]isoSGMIB (N-succinimidyl-3-(1,2-bis-BOC-guanidino)-methyl-5-(trimethylstannyl)benzoate)

Benzoic acid, 3-[[[(1,1-dimethylethoxy)carbonyl][[[(1,1-dimethylethoxy)carbonyl]amino]iminomethyl]amino]methyl]-5-(trimethylstannyl)-, 2,5-dioxo-1-pyrrolidinyl ester


Research Chemical


Molar mass 653.31

CAS RN [1632454-31-9]

Purity ≥ 95 %

  • Colorless to off-white solid
  • soluble in dimethyl sulfoxide, chloroform, methanol, ethyl acetate


CoA: appearance, ¹H NMR spectrum (identity), HPLC (Purity)


Choi et al. N-Succinimidyl guanidinomethyl iodobenzoate protein radiohalogenation agents: Influence of isomeric substitution on radiolabeling and target cell residualization. Nucl. Med. Biol. 2014, 41, 802–12.

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