label: succinimidyl N-14-(2-hydroxybenzoyl)-N-11-(4-azidobenzoyl)-9-oxo-8,11,14-triaza-4,5-dithiatetradecanoate
label_lc: succinimidyl n-14-(2-hydroxybenzoyl)-n-11-(4-azidobenzoyl)-9-oxo-8,11,14-triaza-4,5-dithiatetradecanoate