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M7133

Sigma-Aldrich

4-Methylumbelliferyl sulfate potassium salt

sulfatase substrate

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Synonym(s):
Potassium 4-methylumbelliferyl sulfate
Empirical Formula (Hill Notation):
C10H7KO6S
CAS Number:
Molecular Weight:
294.32
Beilstein/REAXYS Number:
3803203
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.32

Quality Level

assay

≥99% (HPLC)

form

powder

solubility

water: 5 mg/mL, clear, colorless

fluorescence

λex 334 nm; λem 370 nm (pH 10.4)
λex 360 nm; λem 449 nm (Reaction products)

storage temp.

−20°C

SMILES string

[K+].CC1=CC(=O)Oc2cc(OS([O-])(=O)=O)ccc12

InChI

1S/C10H8O6S.K/c1-6-4-10(11)15-9-5-7(2-3-8(6)9)16-17(12,13)14;/h2-5H,1H3,(H,12,13,14);/q;+1/p-1

InChI key

CSOCSPXOODWGLJ-UHFFFAOYSA-M

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1 of 4

This Item
H8759M8168N3877
Potassium 4-nitrophenyl sulfate sulfatase substrate

N3877

Potassium 4-nitrophenyl sulfate

solubility

water: 5 mg/mL, clear, colorless

solubility

H2O: 50 mg/mL

solubility

water: 50 mg/mL, clear, colorless

solubility

water: 50 mg/mL, clear, colorless to very faintly greenish-yellow (to Very Light Yellow)

Quality Level

200

Quality Level

200

Quality Level

300

Quality Level

200

form

powder

form

powder

form

powder

form

powder

storage temp.

−20°C

storage temp.

2-8°C

storage temp.

−20°C

storage temp.

−20°C

fluorescence

λex 334 nm; λem 370 nm (pH 10.4)

fluorescence

-

fluorescence

λex 319 nm; λem 384 nm (pH 9.0), λex 360 nm; λem 449 nm (Reaction product)

fluorescence

-

General description

4-Methylumbelliferyl sulfate (4MUS), a general substrate, is a polar metabolite of 4-methylumbelliferone (4MU).

Application

4-Methylumbelliferyl sulfate potassium salt has been used as a substrate in coupled fluorescence sulfotransferase assay to regenerate 3′-phosphoadenosine 5′-phosphosulfate (PAPS) from 3′-phosphoadenosine 5′-phosphate for cerebroside sulfotransferase (CST) enzyme activity measurements. It has also been used as a substrate in arylsulfatase assay/4-methylumbelliferyl sulfate (4-MUS) assay to test the enzymatic activity of the protein-bead complex.

Biochem/physiol Actions

4-Methylumbelliferyl sulfate (4MUS) is capable of undergoing desulfation and involve in futile cycling with 4MU. It can be utilized to measure the arylsulfatase activity of several sulfatases.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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P M Edelbroek et al.
Journal of chromatography, 530(2), 347-358 (1990-09-14)
The anticoagulant phenprocoumon is mainly metabolized in humans to hydroxylated metabolites and their glucuronides. A method is described for the determination of phenprocoumon, 4'-hydroxyphenprocoumon, 6-hydroxyphenprocoumon, 7-hydroxyphenprocoumon, and their glucuronide and sulphate conjugates in human urine. Reversed-phase high-performance liquid chromatography is
Junichi Enokizono et al.
Drug metabolism and disposition: the biological fate of chemicals, 35(6), 922-928 (2007-03-14)
Breast cancer resistance protein (Bcrp/Abcg2) is a member of the ATP-binding cassette transporter family with the ability to transport a variety of sulfate conjugates. In the present study, the regional expression and activity of Bcrp and sulfotransferases (SULTs/Sults) were investigated
Lihua Wang-Eckhardt et al.
Cells, 10(12) (2021-12-25)
Sulfatide synthesis in the human renal cancer cell line SMKT-R3 was strongly inhibited in the presence of low µM concentrations of AG-205, a progesterone receptor membrane component 1 (PGRMC1) antagonist. This was also the case in Chinese hamster ovary (CHO)
Anthony D Verderosa et al.
Scientific reports, 11(1), 1569-1569 (2021-01-17)
Antibiotics are failing fast, and the development pipeline remains alarmingly dry. New drug research and development is being urged by world health officials, with new antibacterials against multidrug-resistant Gram-negative pathogens as the highest priority. Antivirulence drugs, which inhibit bacterial pathogenicity
M Chiba et al.
The Journal of pharmacology and experimental therapeutics, 266(2), 492-499 (1993-08-01)
4-Methylumbelliferyl sulfate (4MUS), a polar metabolite of 4-methylumbelliferone (4MU), is known to undergo desulfation and participate in futile cycling with 4MU. Unusual parabolic or increasing profiles of the steady-state extraction ratio (Ess) of 4MUS with respect to concentration in rat

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Drug conjugate analysis and the enzymatic hydrolysis of glucuronides

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