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F2756

Sigma-Aldrich

Fluorescein di(β-D-galactopyranoside)

Synonym(s):

FDG

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About This Item

Empirical Formula (Hill Notation):
C32H32O15
CAS Number:
17817-20-8
Molecular Weight:
656.59
MDL number:
MFCD00077344
UNSPSC Code:
12352201
PubChem Substance ID:
24894829
NACRES:
NC.07

Assay

≥98% (HPLC)

form

powder

solubility

methanol: 20 mg/mL, clear, yellow

storage temp.

−20°C

SMILES string

OC[C@H]1O[C@@H](Oc2ccc3c(Oc4cc(O[C@@H]5O[C@H](CO)[C@H](O)[C@H](O)[C@H]5O)ccc4C36OC(=O)c7ccccc67)c2)[C@H](O)[C@@H](O)[C@H]1O

InChI

1S/C32H32O15/c33-11-21-23(35)25(37)27(39)30(45-21)42-13-5-7-17-19(9-13)44-20-10-14(43-31-28(40)26(38)24(36)22(12-34)46-31)6-8-18(20)32(17)16-4-2-1-3-15(16)29(41)47-32/h1-10,21-28,30-31,33-40H,11-12H2/t21-,22-,23+,24+,25+,26+,27-,28-,30-,31-/m1/s1

InChI key

ZTOBILYWTYHOJB-WBCGDKOGSA-N

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Application

Fluorescein di(β-D-galactopyranoside) (FDG) has been used for the detection of gene expression via FACS (fluorescence-activated cell sorting).
Fluorescein di(β-D-galactopyranoside) has been used as a substrate in β-galactosidase assay.

Biochem/physiol Actions

Fluorescein di (β-D-galactopyranoside) (FDG) results in fluorescence after being hydrolyzed to fluorescein by β-galactosidase. It gives fluorescence proportional to the enzymatic activity. This molecule is mainly required for the detection of gene expression in transfected cells when using β-galactosidase (Lac Z) as a reporter gene.

Substrates

Fluorogenic substrate for β-galactosidase

related product

Product No.
Description
Pricing

94433

β-Galactosidase stain

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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’.

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