93979
Umbelliferone
suitable for fluorescence indicator, ≥98.0% (HPLC)
Synonym(s):
7-Hydroxy-2H-1-benzopyran-2-one, 7-Hydroxycoumarin
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About This Item
Empirical Formula (Hill Notation):
C9H6O3
CAS Number:
Molecular Weight:
162.14
Beilstein:
127683
EC Number:
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
NACRES:
NA.32
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Quality Level
Assay
≥98.0% (HPLC)
form
crystals
mp
230 °C (dec.) (lit.)
230-234 °C
solubility
dioxane: soluble
ethanol: soluble
fluorescence
λex 325 nm; λem 452 nm in 0.1 M citrate pH 3.0
suitability
suitable for fluorescence indicator
SMILES string
Oc1ccc2C=CC(=O)Oc2c1
InChI
1S/C9H6O3/c10-7-3-1-6-2-4-9(11)12-8(6)5-7/h1-5,10H
InChI key
ORHBXUUXSCNDEV-UHFFFAOYSA-N
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Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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Hiromu Kashida et al.
Bioorganic & medicinal chemistry, 20(14), 4310-4315 (2012-06-19)
In this study, we synthesized a simple but efficient quencher-free molecular beacon tethering 7-hydroxycoumarin on D-threoninol based on its pK(a) change. The pK(a) of 7-hydroxycoumarin in a single strand was determined as 8.8, whereas that intercalated in the duplex was
Kalyan K Sadhu et al.
Organic & biomolecular chemistry, 11(4), 563-568 (2012-10-13)
The design and synthesis of molecular probes competent for pH signaling within or beyond a certain range is a complicated matter. Herein a new mechanism for ''OFF-ON-OFF'' absorbance and fluorescence intensities vs. pH behaviour is described. The probe design is
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17β-Hydroxysteroid dehydrogenase type 1 (17β-HSD1) is an enzyme that catalyzes NADPH-dependent reduction of the weak estrogen, estrone, into the most potent estrogen, estradiol, which exerts proliferative effects via the estrogen receptors. Overexpression of 17β-HSD1 in estrogen-responsive tissues is related to
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Juri M Timonen et al.
European journal of medicinal chemistry, 46(9), 3845-3850 (2011-06-18)
A number of 7-hydroxycoumarins have been synthesised by Pechmann cyclisation using differently substituted resorcinols employing perchloric acid as the condensing agent. All the compounds have been characterised by analytical and spectroscopic methods. The anti-inflammatory properties were tested with LPS-induced inflammation
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