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Merck
CN

K2750

Khellin

crystalline

Synonym(s):

4,9-Dimethoxy-7-methyl-5H-furo[3,2-g][1]benzopyran-5-one

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About This Item

Empirical Formula (Hill Notation):
C14H12O5
CAS Number:
82-02-0
Molecular Weight:
260.24
EC Number:
201-392-8
UNSPSC Code:
41116107
PubChem Substance ID:
24896221
Beilstein/REAXYS Number:
263185
MDL number:
MFCD00005007

Key Documents

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InChI key

HSMPDPBYAYSOBC-UHFFFAOYSA-N

InChI

1S/C14H12O5/c1-7-6-9(15)10-11(16-2)8-4-5-18-12(8)14(17-3)13(10)19-7/h4-6H,1-3H3

SMILES string

COc1c2OC(C)=CC(=O)c2c(OC)c3ccoc13

form

crystalline

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

color

light yellow

bp

180-200 °C/0.05 mmHg (lit.)

mp

150-154 °C (lit.)

format

neat

storage temp.

−20°C

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General description

Khellin is a drug, which belongs to the group of furochromones.It is isolated from a perennial plant named Ammivisnaga L, that usually grows in the mediterranean regions.

Application

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

pictograms

Skull and crossbones
GHS06

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
127F0359
049F0365
043K3714
031H2502

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Total synthesis of khellin via a chromium carbene complex
Yamashita A
Journal of the American Chemical Society, 107(20), 5823-5824 (1985)
Fatma A Ragab et al.
European journal of medicinal chemistry, 42(8), 1117-1127 (2007-03-10)
The synthesis of 9- and 6-alkylaminomethyl furoflavones 5a, b, 9a-c, 13a, b, 15a-g and 18 from the naturally occurring chromones visnagin and khellin. Gastroprotective potency of these compounds in the ethanol damage model was determined. The results indicate that, through
Karin G Haug et al.
Planta medica, 78(17), 1831-1836 (2012-10-26)
The furanochromone visnagin is one of the main compounds of Ammi visnaga L. (syn. Khella) with potential effects on kidney stone prevention. After determination of the pharmacokinetic properties of visnagin after intravenous bolus administration in rats, the aim of the
Pattaraporn Vanachayangkul et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 877(7), 653-656 (2009-02-04)
A rapid and sensitive method for the determination of visnagin in rat plasma was developed using liquid chromatography tandem mass spectrometry (LC-MS/MS). The plasma samples were processed by protein precipitation with methanol:acetonitrile (25:75) and warfarin was used as the internal
J de Leeuw et al.
Journal of the European Academy of Dermatology and Venereology : JEADV, 25(1), 74-81 (2010-05-19)
Various surgical and non-surgical methods are available to treat vitiligo. Surgical techniques such as epidermal blister graft transplantation may be effective for the re-pigmentation of stable, but refractory vitiligo areas. Khellin has phototherapeutic properties that are similar to those of
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