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55634

Sigma-Aldrich

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

suitable for fluorescence, ≥98.0% (HPLC)

Synonym(s):

4-Methylumbelliferone-3-acetic acid

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About This Item

Empirical Formula (Hill Notation):
C12H10O5
CAS Number:
5852-10-8
Molecular Weight:
234.20
Beilstein:
220399
MDL number:
MFCD00467589
UNSPSC Code:
12352200
PubChem Substance ID:
57651544
NACRES:
NA.32

Assay

≥98.0% (HPLC)

form

solid

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
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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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7-Amino-4-methylcoumarin 99%

Sigma-Aldrich

257370

7-Amino-4-methylcoumarin

4-Methylumbelliferone ≥98%

Sigma-Aldrich

M1381

4-Methylumbelliferone

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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