55634

Sigma-Aldrich

7-Hydroxy-4-methyl-3-coumarinylacetic acid

≥98.0% (HPLC), suitable for fluorescence

Synonym(s):
4-Methylumbelliferone-3-acetic acid
Empirical Formula (Hill Notation):
C12H10O5
CAS Number:
Molecular Weight:
234.20
Beilstein/REAXYS Number:
220399
MDL number:
PubChem Substance ID:
NACRES:
NA.32
Pricing and availability is not currently available.

Quality Level

assay

≥98.0% (HPLC)

solubility

DMF: soluble
DMSO: soluble

fluorescence

λex 360 nm; λem ~450 nm in 0.1 M Tris pH 9.0

suitability

suitable for fluorescence

SMILES string

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

InChI

1S/C12H10O5/c1-6-8-3-2-7(13)4-10(8)17-12(16)9(6)5-11(14)15/h2-4,13H,5H2,1H3,(H,14,15)

InChI key

OOGKDHCQSZAEQI-UHFFFAOYSA-N

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Application

suitable as pH-indicator

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

Target Organs

Respiratory system

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

NONH for all modes of transport

WGK Germany

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
Krzysztof Żamojć et al.
Journal of fluorescence, 24(3), 713-718 (2013-12-18)
The fluorescence quenching of different coumarin derivatives (7-hydroxy-4-methylcoumarin, 5,7-dimethoxycoumarin, 7-amino-4-methyl-3-coumarinylacetic acid, 7-ethoxy-4-methylcoumarin, 7-methoxycoumarin, 7-hydroxycoumarin, 7-hydroxy-4-methyl-3-coumarinylacetic acid and 7-amino-4-methylcoumarin) by 4-hydroxy-TEMPO in aqueous solutions at the room temperature was studied with the use of UV-Vis absorption spectroscopy as well as a...
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