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474422

Sigma-Aldrich

4-Methylumbelliferyl-α-D-galactopyranoside

Substrate for the fluorogenic assay of α-D-galactosidase.

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Synonym(s):
4-Methylumbelliferyl-α-D-galactopyranoside, 4-MU-α-D-Gal
Empirical Formula (Hill Notation):
C16H18O8
CAS Number:
38597-12-5
Molecular Weight:
338.31
MDL number:
MFCD00063278
UNSPSC Code:
12352200
NACRES:
NA.77

Quality Level

100

Assay

≥98% (HPLC)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
desiccated
protect from light

impurities

≤100 ppm 4-methylumbelliferone

color

white to off-white

solubility

DMF: 50 mg/mL

fluorescence

λex 360 nm
λem 440 nm

shipped in

ambient

storage temp.

−20°C

InChI

1S/C16H18O8/c1-7-4-12(18)23-10-5-8(2-3-9(7)10)22-16-15(21)14(20)13(19)11(6-17)24-16/h2-5,11,13-17,19-21H,6H2,1H3

InChI key

YUDPTGPSBJVHCN-UHFFFAOYSA-N

General description

Substrate for the fluorogenic assay of α-D-galactosidase.
Substrate for the fluorogenic assay of α-D-galactosidase. Excitation maximum: ~360 nm; Emission maximum: ~440 nm.

Warning

Toxicity: Standard Handling (A)

Reconstitution

Unstable in solution; reconstitute just prior to use. Solubilization in DMF is preferred, as background fluorescence will increase if solubilized in H₂O.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

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’.

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