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m-CRESOL PURPLE |
| Synonyms. m-Cresol purple; 3-Cresol Purple; meta-Cresol Purple; meta-Cresolsulfonephthalein; m-Cresolsulfonephthalein; 4,4'-(3H-2,1-Benzoxathiol-3-ylidene)bis(3-methylphenol S,S-dioxide; 4,4'-(1,1-Dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(3-methylphenol); |
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| PRODUCT IDENTIFICATION | |
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CAS RN |
2303-01-7 |
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EINECS RN |
218-960-6 |
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FORMULA |
C21H18O5S |
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MOLE WEIGHT |
382.43 |
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H.S CODE |
2914.70.4000 |
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SMILES |
S1(OC(c2c(cc(cc2)O)C)(c2c(cc(cc2)O)C)c2c1cccc2)(=O)=O |
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CLASSIFICATION |
Stain, Dye, pH Indicator |
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EXTRA NOTES |
pH indicating range: 1.2 ~ 2.8 (red to yellow),
7.4 ~ 9.0 (yellow to violet) |
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| PHYSICAL AND CHEMICAL PROPERTIES | |
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PHYSICAL STATE. |
deep green crystalline powder |
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MELTING POINT |
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BOILING POINT |
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DENSITY |
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SOLUBILITY IN WATER |
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| SOLVENT SOLUBILITY |
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VAPOR DENSITY |
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log P(octanol-water) |
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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 |
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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: 0, Flammability: 0, Reactivity: 0 |
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| EXTERNAL LINKS & GENERAL DESCRIPTION |
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Wikipedia Linking - Kresolpurpur Google Scholar Search - m-Cresol purple Drug Information Portal (U.S. National Library of Medicine) - 3-Cresol purple PubChem Compound Summary - m-Cresol purple http://www.ncbi.nlm.nih.gov/ - m-Cresol purple |
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| SALES SPECIFICATION | |
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APPEARANCE |
deep green crystalline powder |
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STRENGTH |
100% min |
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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: Not known. Not a dangerous substance or mixture according to the Globaly Harmonised System. Eyes: May cause eye irritation. Skin: May be harmful if absorbed through skin. May cause skin irritation. Inhalation: May be harmful if inhaled. May cause respiratory tract irritation. Ingestion: May be harmful if swallowed. |
| SIGNAL WORD | |
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PICTOGRAMS |
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HAZARD STATEMENTS |
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P STATEMENTS |
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| EC DIRECTIVES |
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| HAZARD CODES |
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RISK PHRASES |
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SAFETY PHRASES |
24/25 |
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| PACKING |
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Preserve in light-resistant and well-closed containers |