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Sigma-Aldrich

4-Methylumbelliferyl oleate

lipase substrate, ≥95% (HPCE), solid, suitable for fluorescence

Synonym(s):

Oleic acid 4-methylumbelliferyl ester

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About This Item

Empirical Formula (Hill Notation):
C28H40O4
CAS Number:
Molecular Weight:
440.61
Beilstein:
4887028
EC Number:
MDL number:
UNSPSC Code:
12352204
PubChem Substance ID:
NACRES:
NA.21

Product Name

4-Methylumbelliferyl oleate, suitable for fluorescence, ≥95% (HPCE)

Quality Level

Assay

≥95% (HPCE)

form

solid

storage condition

protect from light
under inert gas

mp

37-38 °C (lit.)

solubility

2-methoxyethanol: soluble
DMSO: soluble
chloroform: soluble

fluorescence

λex 312 nm in methanol
λex 327 nm; λem 449 nm in 0.1 M phosphate pH 7.0 (lipase)

suitability

suitable for fluorescence

shipped in

wet ice

storage temp.

−20°C

SMILES string

CCCCCCCC\C=C/CCCCCCCC(=O)Oc1ccc2C(C)=CC(=O)Oc2c1

InChI

1S/C28H40O4/c1-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-27(29)31-24-19-20-25-23(2)21-28(30)32-26(25)22-24/h10-11,19-22H,3-9,12-18H2,1-2H3/b11-10-

InChI key

NKQFKJYKCVDLPT-KHPPLWFESA-N

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Application

4-Methylumbelliferyl oleate has been used:
  • as a substrate to assay the activity of non-specific esterases
  • to determine lipase activity
  • as a substrate to evaluate pancreatic lipase inhibitory activity

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Other Notes

Fluorogenic substrate for lipase

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

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T J Van Berkel et al.
Biochimica et biophysica acta, 617(3), 446-457 (1980-03-21)
(1) Parenchymal and non-parenchymal cells were isolated from rat liver. The characteristics of acid lipase activity with 4-methylumbelliferyl oleate as substrate and acid cholesteryl esterase activity with cholesteryl[1-14C]oleate as substrate were investigated. The substrates were incorporated in egg yolk lecithin
Non-flavonoid phenolics from Averrhoa carambola fresh fruit
Jia X, et al.
Journal of functional foods, 32(1), 419-425 (2017)
Fluorometric assay for the hydrolytic activity of lipase using fatty acyl esters of 4-methylumbelliferone.
T J Jacks et al.
Analytical biochemistry, 21(2), 279-285 (1967-11-01)
Lysosomal acid lipase in cultivated fibroblasts: characterization of enzyme activity in normal and enzymatically deficient cell lines.
B K Burton et al.
Clinica chimica acta; international journal of clinical chemistry, 101(1), 25-32 (1980-02-14)
Oleate lipase activity in Gardnerella vaginalis and reconsideration of existing biotype schemes
Moncla BJ and Pryke KM
BMC Microbiology, 9(1), 78-78 (2009)

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