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7-Hydroxycoumarin-4-acetic acid_Molecular_structure_CAS_6950-82-9)
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7-Hydroxycoumarin-4-acetic acid

Catalog No. 55157 Name Sigma Aldrich
CAS Number 6950-82-9 Website http://www.sigmaaldrich.com
M. F. C11H8O5 Telephone 1-800-521-8956
M. W. 220.17822 Fax
Purity ≥98.0% (TLC) Email
Storage Chembase ID: 10060

SYNONYMS

IUPAC name
2-(7-hydroxy-2-oxo-2H-chromen-4-yl)acetic acid
IUPAC Traditional name
(7-hydroxy-2-oxochromen-4-yl)acetic acid
Synonyms
4-(Carboxymethyl)umbelliferone
7-Hydroxy-4-coumarinylacetic acid
Umbelliferone-4-acetic acid

DATABASE IDS

PubChem SID 24879227
MDL Number MFCD00037563
Beilstein Number 204777
CAS Number 6950-82-9

PROPERTIES

Empirical Formula (Hill Notation) C11H8O5
Grade for fluorescence
Purity ≥98.0% (TLC)
pKa 7.8
Fluorescence λex 367 nm; λem 455 nm in 0.1 M Tris pH 9.0
Melting Point 194-196 °C(lit.)
Solubility DMF: soluble
Solubility DMSO: soluble
Solubility H2O: soluble (pH ≥ 6)
GHS Pictograms GHS07
GHS Signal Word Warning
GHS Hazard statements H315-H319-H335
European Hazard Symbols Irritant Irritant (Xi)
MSDS Link Download
Personal Protective Equipment dust mask type N95 (US), Eyeshields, Gloves
GHS Precautionary statements P261-P305 + P351 + P338
Risk Statements 36/37/38
Safety Statements 26-36
German water hazard class 3

DETAILS

Description (English)
Application
suitable as pH indicator
Description (简体中文)
Application
suitable as pH indicator

REFERENCES