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Merck
CN

82631

Purpurin

Synonym(s):

1,2,4-Trihydroxyanthraquinone, Hydroxylizaric acid, Verantin

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About This Item

Empirical Formula (Hill Notation):
C14H8O5
CAS Number:
81-54-9
Molecular Weight:
256.21
EC Number:
201-359-8
UNSPSC Code:
12352200
NACRES:
NA.21
PubChem Substance ID:
329769256
MDL number:
MFCD00001203
Colour Index Number:
58205
Beilstein/REAXYS Number:
1887127

Key Documents

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Quality Level

100

technique(s)

UV/Vis spectroscopy: suitable, titration: suitable

mp

253-256 °C (lit.)

SMILES string

Oc1cc(O)c2C(=O)c3ccccc3C(=O)c2c1O

InChI

1S/C14H8O5/c15-8-5-9(16)14(19)11-10(8)12(17)6-3-1-2-4-7(6)13(11)18/h1-5,15-16,19H

InChI key

BBNQQADTFFCFGB-UHFFFAOYSA-N

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General description

Purpurin is a synthetic photosensitizer. It has tissue-penetrating property as its major absorption peak is between 650-715 nm. It is widely used as anthraquinone pigment in food colouring, textile industry, paint industry and medicinal treatments.

Application

Traditionally it has been used to dye cotton fabric materials. It may be used as reference standard in identifying red natural dyes using High performance liquid chromatography (HPLC) with UV-Vis Diode Array Detection (DAD) and electrospray mass spectrometric (ESI-MS) method.

Other Notes

Complexing agent for the spectrophotometric detm. of metals, e.g. La and Pb

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

235.4 °F - closed cup

flash_point_c

113 °C - closed cup

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCBZ7327
BCBV2883
BCBS0285V

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SERS detection of red organic dyes in Ag-agar gel.
Lofrumento, Cristiana, et al.
Journal of Raman Spectroscopy, 44.1, 47-54 (2013)
Analytical Letters, 27, 1595-1595 (1994)
Investigation of Red Natural Dyes Used in Historical Objects by HPLC-DAD-MS.
Karapanagiotis, Ioannis, and Yannis Chryssoulakis.
Annali di Chimica, 96.1-2, 75-84 (2006)
A A Ramirez et al.
Talanta, 33(12), 1021-1025 (1986-12-01)
Mixtures of La(III) and Mg(II) form with purpurin (P; 1,2,4-trihydroxyanthraquinone) the mixed-metal complex LaMg(2)P(5), which is extracted with methyl isobutyl ketone at pH 7.5. The molar absorptivity of the complex is 6.1 x 10(4) l.mole(-1).cm(-1) at 570 nm and its
Morphological study of the combined effect of purpurin derivatives and light on transplantable rat bladder tumors.
Morgan, Alan R., et al.
Cancer Research, 47.2, 496-498 (1987)
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Global Trade Item Number

SKUGTIN
732591-250MG04061832867212

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