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B2904

Sigma-Aldrich

Bluo-Gal

reagent for selection of recombinant bacterial clones

Synonyme(s) :

5-Bromo-3-indolyl β-D-galactopyranoside, substrate for β-galactosidase, Bluo-Gal

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About This Item

Formule empirique (notation de Hill):
C14H16BrNO6
Numéro CAS:
Poids moléculaire :
374.18
Numéro Beilstein :
1550140
Numéro MDL:
Code UNSPSC :
12352200
ID de substance PubChem :
Nomenclature NACRES :
NA.85

Qualité

for molecular biology

Niveau de qualité

Stérilité

non-sterile

Pureté

≥98% (HPLC)

Forme

powder

Technique(s)

nucleic acid detection: suitable

Solubilité

DMF: soluble

Adéquation

suitable for substrate for β-galactosidase

Température de stockage

−20°C

Chaîne SMILES 

OC[C@H]1O[C@@H](Oc2c[nH]c3ccc(Br)cc23)[C@H](O)[C@@H](O)[C@H]1O

InChI

1S/C14H16BrNO6/c15-6-1-2-8-7(3-6)9(4-16-8)21-14-13(20)12(19)11(18)10(5-17)22-14/h1-4,10-14,16-20H,5H2/t10-,11+,12+,13-,14-/m1/s1

Clé InChI

LINMATFDVHBYOS-MBJXGIAVSA-N

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Description générale

Bluo-Gal is a chromogenic substrate for β-galactosidase, used to determine the presence or absence of a cloned DNA insert in bacteria growing on agar plates. Bluo-Gal is designed to replace X-Gal in blue-white selection of recombinant bacterial colonies with the lac+ phenotype.

Application

Bluo-Gal is suitable for use in selection of recombinant bacterial colonies with the lac+ phenotype. Bluo-Gal is suitable for use as β-galactosidase substrate in the staining of skin tissues for electron microscopy analysis, Dictyostelium samples and in the staining of vena cava of adult mice.
Chromogenic substrate suitable for identification of lac+ bacterial colonies. An alternative to 5-bromo-4-chloro-3-indolyl β-D-galactopyranoside (X-Gal), producing a darker blue color.

Principe

When Bluo-Gal is hydrolyzed by β-galactosidase, the resulting product will form a blue precipitate. Lac+ colonies grown in the presence of Bluo-Gal turn a deeper blue color more intense than X-Gal, allowing for easy differentiation between lac+ and lac- colonies.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)


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