C14H15BrClNO6
408.63 g/mol
Research ReagentWarning
X-Gal
CAS7240-90-6EC230-640-8
Category
Research Reagent
Compound Class
Heterocycle
Primary Use
Research Compound
X-Gal (5-bromo-4-chloro-3-indolyl beta-D-galactoside) is a chromogenic compound used as a substrate for the enzyme beta-galactosidase. Upon enzymatic cleavage, it produces an intensely blue product, enabling visual detection of enzyme activity in laboratory and research settings.
Chromogenic substrate for beta-galactosidase in histological stainingIndicator in bacterial cloning experiments
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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Safety Reference
Warning
H302Harmful if swallowed
H312Harmful in contact with skin
H332Harmful if inhaled
Customs Tariff Classification
The international HS code for X-Gal (CAS 7240-90-6) is 2934.99.
HS code (international, 6-digit)
2934.99
EU CN code (8-digit)
2934 99 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
(2S,3R,4S,5R,6R)-2-[(5-bromo-4-chloro-1H-indol-3-yl)oxy]-6-(hydroxymethyl)oxane-3,4,5-triol
InChIKey
OPIFSICVWOWJMJ-AEOCFKNESA-N
SMILES
C1=CC(=C(C2=C1NC=C2O[C@H]3[C@@H]([C@H]([C@H]([C@H](O3)CO)O)O)O)Cl)Br
Synonyms (31)
- BCIG
- X-Gal
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