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82631 Sigma-Aldrich

Purpurin

for spectrophotometric det. (of B, Pb)

Synonym: 1,2,4-Trihydroxyanthraquinone

  • CAS Number 81-54-9

  • Empirical Formula (Hill Notation) C14H8O5

  • Molecular Weight 256.21

  •  Beilstein Registry Number 1887127

  •  Colour Index Number 58205

  •  EC Number 201-359-8

  •  MDL number MFCD00001203

  •  PubChem Substance ID 329769256

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Properties

Related Categories Analytical Reagents, Analytical/Chromatography, Indicators, Metal Titration Indicators, Spectroscopy,
grade   for spectrophotometric det. (of B, Pb)
InChI Key   BBNQQADTFFCFGB-UHFFFAOYSA-N
mp   253-256 °C(lit.)

Description

Other Notes

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

Same product — same quality — now Sigma-Aldrich brand

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.

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.

Price and Availability

Suggested Laboratory Gloves


Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.



Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Precautionary statements 
Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
3
RTECS 
CB8200000
Flash Point(F) 
235.4 °F
Flash Point(C) 
113 °C

Documents

Certificate of Analysis

Protocols & Articles
Peer-Reviewed Papers
15

References

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