m-Cresol Purple

CAS: 2303-01-7

Ref. TR-C782153

Product Information

• Name: m-Cresol Purple
• Synonyms: 4,4'-(1,1-Dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[3-methylphenol], 3H-2,1-Benzoxathiole, phenol derivative, Metacresol Purple, m-Cresolsulfonephthalein, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis[3-methyl-phenol]-S,S-dioxide, 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, 3,3-bis(4-hydroxy-2-methylphenyl)-2-benzofuran-1(3H)-one, 3H-2,1-Benzoxathiole, phenol deriv., 4,4'-(1,1-Dioxido-3H-2,1-benzoxathiole-3,3-diyl)bis(3-methylphenol), 4,4′-(1,1-Dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[3-methylphenol], Cresol purple, NSC 9607, Phenol, 4,4′-(3H-2,1-benzoxathiol-3-ylidene)bis[3-methyl-, S,S-dioxide, m-Cresol, 4,4′-(3H-2,1-benzoxathiol-3-ylidene)di-, S,S-dioxide, o-Toluenesulfonic acid, α-hydroxy-α,α-bis(4-hydroxy-o-tolyl)-, γ-sultone, phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[3-methyl-

Description

Applications m-Cresol Purple is a recommended indicator for open-ocean pH measurements. The compound is used in many colorimetric sensor studies. Dyes and metabolites.
References Clayton, T., et al.: Deep Sea Res. Part 1 Oceanogr. Res. Pap., 40, 2115 (1993); Lim, S., et al.: Nat. Chem., 1, 562 (2009); Mills, A., et al.: Anal. Chem., 64, 1383 (1992); Suslick, B., et al.: Anal. Chem., 82, 2067 (2010);

• Brand: TRC

Chemical properties

• Molecular weight: 382.43
• Formula: C₂₁H₁₈O₅S
• Color/Form: Neat
• InChI: InChI=1S/C17H38O3Si2/c1-16(2,3)21(7,8)19-13-15(11-12-18)14-20-22(9,10)17(4,5)6/h12,15H,11,13-14H2,1-10H3
• InChI key: InChIKey=FWDJOELTYVDNTF-UHFFFAOYSA-N
• SMILES: CC(C)(C)[Si](C)(C)OCC(CC=O)CO[Si](C)(C)C(C)(C)C