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M8883

Sigma-Aldrich

4-Methylumbelliferyl phosphate

phosphatase substrate

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Synonym(s):
4-Methylumbelliferyl-phosphoric acid
Empirical Formula (Hill Notation):
C10H9O6P
CAS Number:
Molecular Weight:
256.15
Beilstein/REAXYS Number:
1687229
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.32

description

phosphatase substrate

Quality Level

assay

≥98% (HPLC)

form

powder

solubility

water: 25 mg/mL, clear to very slightly hazy, colorless

fluorescence

λex 319 nm; λem 384 nm (pH 9.1)
λex 360 nm; λem 449 nm (Reaction product)

storage temp.

−20°C

SMILES string

CC1=CC(=O)Oc2cc(OP(O)(O)=O)ccc12

InChI

1S/C10H9O6P/c1-6-4-10(11)15-9-5-7(2-3-8(6)9)16-17(12,13)14/h2-5H,1H3,(H2,12,13,14)

InChI key

BCHIXGBGRHLSBE-UHFFFAOYSA-N

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Application

4-Methylumbelliferyl phosphate has been used as a substrate for alkaline phosphatase in the peptide-binding assay. It has also been used as a fluorogenic substrate in enzyme-linked immunosorbent assay (ELISA).

Biochem/physiol Actions

4-Methylumbelliferyl phosphate serves as a fluorogenic substrate for calmodulin-dependent protein phosphatase and in kinetic studies of alkaline phosphatase. It is a substrate for alkaline phosphatase in enzyme-linked immunosorbent assay (ELISA) procedures. 4-Methylumbelliferyl phosphate is seven times more sensitive than phenolphthalein monophosphate and 8-13 times more sensitive than with p-nitrophenyl phosphate when used in enzyme immunoassays for the detection of antibodies to human immunodeficiency viruses.

Substrates

Fluorogenic substrate for phosphatases.

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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