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79279

Sigma-Aldrich

3-Phenylumbelliferone

suitable for fluorescence, ≥98.0% (TLC)

Synonym(s):

7-Hydroxy-3-phenylcoumarin

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About This Item

Empirical Formula (Hill Notation):
C15H10O3
CAS Number:
6468-96-8
Molecular Weight:
238.24
Beilstein:
384125
MDL number:
MFCD00037574
UNSPSC Code:
12171500
PubChem Substance ID:
57652784
NACRES:
NA.32

Assay

≥98.0% (TLC)

form

crystals

pKa 

7.8

mp

206-210 °C (lit.)

solubility

DMF: soluble
DMSO: soluble
alcohols: soluble

fluorescence

λex 338 nm; λem 463 nm (pH 3.0)
λex 383 nm; λem 472 nm in 0.1 M Tris pH 9.0

suitability

suitable for fluorescence

SMILES string

Oc1ccc2C=C(C(=O)Oc2c1)c3ccccc3

InChI

1S/C15H10O3/c16-12-7-6-11-8-13(10-4-2-1-3-5-10)15(17)18-14(11)9-12/h1-9,16H

InChI key

RIPZCQZTVDNJHQ-UHFFFAOYSA-N

Application

suitable as pH-indicator

Other Notes

Fluorescent pH probe for the physiological pH range

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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Certificates of Analysis (COA)

Lot/Batch Number
070904/1
396563/1
363278/1
70904/1

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O.S. Wolfbeis
Zeitschrift fur Naturforschung, A, 32, 1065-1065 (1977)

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