Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Sourcing 4-Maleimidobutyric acid?
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research compound
Sourcing 4-Maleimidobutyric acid?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
4-Maleimidobutyric acid is a compound containing a maleimide group and a carboxylic acid, used as a crosslinking reagent in bioconjugation research. It is characterized by its ability to form stable thioether bonds with thiol groups, making it valuable for modifying proteins and other biomolecules.
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.
The international HS code for 4-Maleimidobutyric acid (CAS 57078-98-5) is 2925.19.
2925.19
2925 19 95
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
4-(2,5-dioxopyrrol-1-yl)butanoic acid
NCPQROHLJFARLL-UHFFFAOYSA-N
C1=CC(=O)N(C1=O)CCCC(=O)O