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:
Molecular Weight:
256.21
EC Number:
201-359-8
UNSPSC Code:
12352200
NACRES:
NA.21
PubChem Substance ID:
MDL number:
Colour Index Number:
58205
Beilstein/REAXYS Number:
1887127
Quality Segment
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
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.
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Signal Word
Warning
Hazard Codes
Precautionary Statements
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 (personal protective equipment)
dust mask type N95 (US), Eyeshields, Gloves
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