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M0883

Sigma-Aldrich

4-Methylumbelliferyl acetate

esterase substrate

Synonym(s):

MU-Ac

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About This Item

Empirical Formula (Hill Notation):
C12H10O4
CAS Number:
2747-05-9
Molecular Weight:
218.21
Beilstein:
189667
EC Number:
220-386-6
MDL number:
MFCD00006865
UNSPSC Code:
12352204
PubChem Substance ID:
24896576
NACRES:
NA.32

Assay

≥98% (TLC)

form

powder

mp

149-150 °C (lit.)

solubility

chloroform: 100 mg/mL, clear, colorless

fluorescence

λex 312 nm in methanol
λex 360 nm; λem 499 nm (Reaction product)

storage temp.

−20°C

SMILES string

CC(=O)Oc1ccc2C(C)=CC(=O)Oc2c1

InChI

1S/C12H10O4/c1-7-5-12(14)16-11-6-9(15-8(2)13)3-4-10(7)11/h3-6H,1-2H3

InChI key

HXVZGASCDAGAPS-UHFFFAOYSA-N

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Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

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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H G Raj et al.
Teratogenesis, carcinogenesis, and mutagenesis, 21(2), 181-187 (2001-02-27)
Our earlier studies documented the ability of 7,8-diacetoxy-4-methylcoumarin (DAMC) to cause irreversible inhibition of cytochrome P-450 linked mixed function oxidases (MFO) mediated by membrane bound DAMC: protein transacetylase. Since P-450 catalyzed oxidation of benzene is crucial to its toxic effects
A A Frimer et al.
Free radical biology & medicine, 20(6), 843-852 (1996-01-01)
--2-(Dimethylamino) fluorene (1a) and 5-benzoyloxy-2,3,7,8,12,13,17,18-octaethylporphyrin (4) react with superoxide anion radical (generated from KO2/18-crown-6 polyether) in aprotic media. Yet, when incorporated into the lipid bilayer of dimyristoyl phosphatidylcholine liposomes, these two substrates are inert to superoxide, generated enzymatically (xanthine oxidase/acetaldehyde)
David Sychantha et al.
Biochemistry, 57(16), 2394-2401 (2018-03-30)
Streptococcus pneumoniae among other Gram-positive pathogens produces O-acetylated peptidoglycan using the enzyme OatA. This process occurs through the transfer of an acetyl group from a donor to the hydroxyl group of an acceptor sugar. While it has been established that
Enzyme kinetic studies in cell populations using fluorogenic substrates and flow cytometric techniques.
J V Watson
Cytometry, 1(2), 143-151 (1980-09-01)
M L Graber et al.
The American journal of physiology, 250(1 Pt 2), F159-F168 (1986-01-01)
Intracellular pH (pHi) of turtle bladder mucosal cells was studied by the trapped fluorescent indicator technique. Bladders efficiently accumulated and converted 4-methylumbelliferyl acetate to its pH-sensitive derivative 4-methylumbelliferone (4MU). Excited at the pH-indifferent wavelength 334 nm, bladders fluoresced a uniform
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