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PURPURIN |
| Synonyms. Purpurin; 1,2,4-Trihydroxy-9,10-anthracenedione; 1,2,4-Trihydroxyanthraquinone; 1,2,4-Trihydroxy-9,10-anthraquinone; 1,2,4-Trihydroxyanthrachinon; C.I. 1037; C.I. 58205; C.I. 75410; Hydroxylizaric acid; Purpurin madder root; Purpurine; Smoke Brown G; Verantin; |
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| PRODUCT IDENTIFICATION | |
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CAS RN |
81-54-9 |
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EINECS RN |
201-359-8 |
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FORMULA |
C14H8O5 |
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MOLE WEIGHT |
256.21 |
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H.S CODE |
3204.19.4000 |
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SMILES |
c12c(C(c3ccccc3C1=O)=O)c(cc(c2O)O)O |
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CLASSIFICATION |
Coloring agent, Anthraquinone dye, Hydroxyquinol, Trihydroxyanthraquinone |
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EXTRA NOTES |
A natural pigment from roots of madder root (Rubia tinctorum). |
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| PHYSICAL AND CHEMICAL PROPERTIES | |
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PHYSICAL STATE. |
dark brown powder |
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MELTING POINT |
253 ~ 256 C |
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BOILING POINT |
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DENSITY |
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SOLUBILITY IN WATER |
Slightly soluble |
| SOLVENT SOLUBILITY |
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VAPOR DENSITY |
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log P(octanol-water) |
3.46 |
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VAPOR PRESSURE |
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AUTOIGNITION TEMP |
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| pK |
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REFRACTIVE INDEX |
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FLASH POINT |
113 C |
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| STABILITY AND REACTIVITY | |
| STABILITY | Stable under normal conditions. |
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INCOMPATIBLE MATERIALS |
Strong oxidizing agents |
| POLYMERIZATION |
Has not been reported |
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NFPA RATINGS |
Health: 2, Flammability: 1, Reactivity: 0 |
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| EXTERNAL LINKS & GENERAL DESCRIPTION |
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USA.gov - Purpurin Wikipedia Linking - 1,2,4-Trihydroxyanthraquinone Google Scholar Search - Purpurin Drug Information Portal (U.S. National Library of Medicine) - Purpurin PubChem Compound Summary - Purpurin KEGG (Kyoto Encyclopedia of Genes and Genomes) - Purpurin http://www.ebi.ac.uk/chebi/ - Purpurin http://www.ncbi.nlm.nih.gov/ - Purpurin Material Safety Data Sheet - Purpurin EPA - Substance Registry Services - Purpurin |
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| SALES SPECIFICATION | |
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APPEARANCE |
dark brown powder |
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ASSAY |
95% min (HPLC) |
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Alizarin |
3% max |
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LOSS ON DRYING |
1% max |
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MELTING POINT |
253 ~ 256 C |
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| TRANSPORT & REGULATORY INFORMATION | |
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UN NO. |
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| HAZARD CLASS |
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| PACKING GROUP | |
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| SAFETY INFORMATION | |
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HAZARD OVERVIEW |
OSHA Hazards: Target Organ Effect, Irritant, Teratogen. Causes eye, skin, and respiratory tract irritation. Target Organs: Respiratory system, eyes, skin. Eye: Causes eye irritation. Skin: Causes skin irritation. Ingestion: May cause gastrointestinal irritation with nausea, vomiting and diarrhea. Inhalation: Causes respiratory tract irritation. |
| SIGNAL WORD | Warning |
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PICTOGRAMS |
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HAZARD STATEMENTS |
H315-H319-H335 |
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P STATEMENTS |
P261-P305 + P351 + P338 |
| EC DIRECTIVES |
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| HAZARD CODES |
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RISK PHRASES |
36/37/38 |
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SAFETY PHRASES |
26-36 |
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| PACKING |
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Preserve in light-resistant and well-closed containers |
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