3-cresol purple

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Names

[ CAS No. ]:
2303-01-7

[ Name ]:
3-cresol purple

[Synonym ]:
cresolsulfonphthalein
EINECS 218-960-6
3-cresol purple
m-Cresolsulfonphthalein
m-Cresol purpl
Metacresol Purple
2-[(Z)-(4-Hydroxy-2-methylphenyl)(2-methyl-4-oxocyclohexa-2,5-dien-1-ylidene)methyl]benzenesulfonic acid
3,3-Bis(4-hydroxy-2-methylphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide
MFCD00005871
3-cresolpurple
pourpredem-cresol
M-CRESOLSULFONEPHTHALEIN
m-Cresolpurpl
M-CRESOL PURPLE
2-[(Z)-(4-Hydroxy-2-methylphenyl)(2-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methyl]benzenesulfonic acid
BETZ 0420
Benzenesulfonic acid, 2-[(Z)-(4-hydroxy-2-methylphenyl)(2-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methyl]-

Chemical & Physical Properties

[ Density]:
1.4±0.1 g/cm3

[ Boiling Point ]:
577.5ºC at 760 mmHg

[ Melting Point ]:
>250°C

[ Molecular Formula ]:
C21H18O5S

[ Molecular Weight ]:
382.430

[ Exact Mass ]:
382.087494

[ PSA ]:
92.21000

[ LogP ]:
2.99

[ Vapour Pressure ]:
1.19E-13mmHg at 25°C

[ Index of Refraction ]:
1.652

[ Water Solubility ]:
Solubility Very slightly soluble in water, ethanol; soluble in methanol

MSDS

Click to get detail MSDS

Safety Information

[ Hazard Codes ]:
T+

[ Safety Phrases ]:
S24/25

[ RIDADR ]:
NONH for all modes of transport

[ HS Code ]:
3822009000

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • 2-Sulfobenzoic anhydride
  • m-Cresol
  • o-chlorocarbonyl benzenesulfonyl-chloride
  • Saccharin

DownStream

  • 4-Hydroxy-2-methylbenzoic acid

Customs

[ HS Code ]: 2934991000

[ Summary ]:
2934991000. sultones and sultams. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Articles

Morphological plasticity of the coral skeleton under CO2-driven seawater acidification.

Nat. Commun. 6 , 7368, (2015)

Ocean acidification causes corals to calcify at reduced rates, but current understanding of the underlying processes is limited. Here, we conduct a mechanistic study into how seawater acidification al...

Spectrophotometric calibration of pH electrodes in seawater using purified m-cresol purple.

Environ. Sci. Technol. 46(9) , 5018-24, (2012)

This work examines the use of purified meta-cresol purple (mCP) for direct spectrophotometric calibration of glass pH electrodes in seawater. The procedures used in this investigation allow for simple...

Apical extrusion of sodium hypochlorite using different root canal irrigation systems.

J. Endod. 37(12) , 1677-81, (2011)

Root canal irrigation carries a risk of extrusion of irrigant into the periapical tissues. The objective of this study was to compare different irrigation systems in matched pairs of teeth prepared to...


More Articles

Related Compounds

  • m-cresol purple, sodium salt
  • 2-Chloro-5-methylphenol
  • Metacresol purple sodium salt
  • 5-tert-butyl-m-cresol
  • m-Cresol
  • 4-Chloro-3-methylphenol
  • 4-((Cyclohexylamino)methyl)benzoic acid hydrochloride
  • 1-[(2,4-Dichlorophenyl)methyl]-N-(1,1-dimethylethyl)-2-methyl-1H-indole-3-methanamine
  • 2-Methoxy-6-(pyrazol-1-yl)-benzonitrile
  • 1H-3-Benzazepin-7-ol, 8-chloro-2,3,4,5-tetrahydro-5-(3-iodophenyl)-3-methyl-, (S)-
  • (4-Methyl-tetrahydro-furan-2-yl)-methanol
  • N-(1-cyanocyclopentyl)-2-[4-(4-fluorobenzenesulfonyl)-1,4-diazepan-1-yl]acetamide
  • 4,5,6,7-Tetrahydrobenzo[d]isoxazole-3-carbaldehyde
  • tert-Butyl-DL-alanine
  • 4-amino-N-[2-tert-butyl-1-(tetrahydro-2H-pyran-4-ylmethyl)-1H-benzimidazol-5-yl]-N-ethylbenzenesulfonamide
  • N-[3-(Aminooxy)propyl]-N-butyl-1-butanamine