Skip to Content
Merck
All Photos(1)

Key Documents

CF0041

Sigma-Aldrich

Urea crosslinker – C4-arm, NHS ester (DSBU, BuUrBU)

Synonym(s):

1,1′-Bis(2,5-dioxo-1-pyrrolidinyl) 4,4′-(carbonyldiimino)bis[butanoate], Disuccinimidyldibutyric urea

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
C17H22N4O9
CAS Number:
MDL number:
UNSPSC Code:
12161502

form

solid

reaction suitability

reaction type: C-C Bond Formation
reagent type: cross-linking reagent

Application

The ureido-4,4´-dibutyric acid bis(hydroxysuccinimide) ester, also known as DSBU or BuUrBU, is the longest version of MS-cleavable urea-based lysine-lysine reactive homobifunctional cross-linkers, featuring a C4-arm. At neutral or slightly basic pH, it irreversibly crosslinks the neighbouring lysine groups. The presence of the symmetrical urea moiety which is prone to collision-induced dissociation allows for the unambiguous distinguishing of crosslinks in tandem CID-MS experiments.

Legal Information

Product of CF Plus Chemicals.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service