CAS 2303-01-7

m-cresol purple

Description:

m-Cresol purple, with the CAS number 2303-01-7, is a synthetic organic compound commonly used as a pH indicator in various chemical and biological applications. It is a member of the phenolic compound family and is characterized by its ability to change color in response to pH variations, typically transitioning from yellow in acidic conditions to purple in alkaline environments. This property makes it particularly useful in titrations and in monitoring pH levels in laboratory settings. m-Cresol purple is soluble in water and organic solvents, which enhances its versatility in different media. Additionally, it has a relatively low toxicity profile, making it suitable for use in biological systems. The compound is often utilized in the preparation of buffer solutions and in the study of acid-base equilibria. Its structural features include a cresol moiety, which contributes to its colorimetric properties, and it is important to handle it with care, following appropriate safety guidelines, due to its chemical nature.

Formula: C₂₁H₁₈O₅S

InChI: InChI=1/C22H18O4/c1-13-11-15(23)7-9-18(13)22(19-10-8-16(24)12-14(19)2)20-6-4-3-5-17(20)21(25)26-22/h3-12,23-24H,1-2H3

InChI key: InChIKey=OLQIKGSZDTXODA-UHFFFAOYSA-N

SMILES: CC1=C(C2(C=3C(S(=O)(=O)O2)=CC=CC3)C4=C(C)C=C(O)C=C4)C=CC(O)=C1

Synonyms:

• 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
• Metacresol 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
• m-Cresolsulfonephthalein
• 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-
• m-Cresol purple
• M-Cresol Purple, indicator grade, pure 5GR
• M-CRESOL PURPLE INDICATOR 5 G
• m-Cresolpurpl
• m-CRESOL PURPLE (pH indicator) AR
• 4,4’-(3h-2,1-benzoxathiol-3-ylidene)bis(3-methylphenol)s,s-dioxide
• Phenol, 4,4-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis3-methyl-
• cresolpurple(non-specificname)
• M-CRESOL PURPLE, INDICATOR GRADE
• pourpredem-cresol
• Cresol purple solution 0.04 % pH
• BETZ 0420
• 4,4’-(3h-2,1-benzoxathiol-3-ylidene)bis(m-cresol)s,s-dioxide
• 3,3-Bis(4-hydroxy-2-methylphenyl)-3H-2,1-benzoxathiole 1,1-dioxide
• m-Cresol Purple,pure,indicator grade
• M-CRESOL PURPLE, INDICATOR GRADE, PURE
• Cresol Purple, M-
• M-CRESOL PURPLE FREE ACID
• m-Cresol Purple sodium salt, 0.04% w/v aq. soln.
• 3-cresolpurple
• M-CRESOLSULFONPHTHALEIN

m-Cresol Purple

CAS: 2303-01-7

m-Cresol Purple acts as a pH indicator dye. It plays an important role in spectrophotometric pH measurements. It operates in the pH ranges 1.2 - 2.8 (red to yellow) and 7.4 - 9.0 (yellow to violet). Further, it is employed to stain epithelial cells and proteins. This Thermo Scientific Chemicals br

Formula: C₂₁H₁₈O₅S

Color and Shape: Green to dark green, Powder

Molecular weight: 382.43

Ref: 02-B24338

Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[3-methyl-

CAS: 2303-01-7

Formula: C₂₁H₁₈O₅S

Purity: 95%

Color and Shape: Solid

Molecular weight: 382.4296

Ref: IN-DA002LY3

m-Cresol Purple

CAS: 2303-01-7

Formula: C₂₁H₁₈O₅S

Color and Shape: Red-brown, brown-green or green powder

Molecular weight: 382.44

Ref: 7W-GT6972

Cresol Purple

CAS: 2303-01-7

Cresol Purple

Purity: IND

Molecular weight: 382.43g/mol

Ref: 54-OR1012710

Metacresol Purple

CAS: 2303-01-7

Formula: C₂₁H₁₈O₅S

Color and Shape: Brown to Black powder to crystal

Molecular weight: 382.43

Ref: 3B-M0074

3-Cresol purple

CAS: 2303-01-7

3-Cresol purple is a bioactive chemical.

Formula: C₂₁H₁₈O₅S

Color and Shape: Dark Green Powder

Molecular weight: 382.43

Ref: TM-T29392

m-Cresol Purple

Controlled Product

CAS: 2303-01-7

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);

Formula: C₂₁H₁₈O₅S

Color and Shape: Neat

Molecular weight: 382.43

Ref: TR-C782153

m-Cresol Purple extrapure AR

CAS: 2303-01-7

Formula: C₂₁H₁₈O₅S

Color and Shape: Greenish, Crystalline powder

Molecular weight: 382.44

Ref: SR-31393

meta-Cresol Purple

CAS: 2303-01-7

Meta-Cresol Purple (MCP) is a fluorescent dye that is used to detect DNA polymerase chain reaction products. It is a cationic dye with an absorption maximum of 590 nm in the visible spectrum. MCP has been shown to bind to nucleic acids and therefore can be used as a probe for detecting DNA polymerase chain reaction products. The detection time for MCP can be up to 10 minutes. The biological studies show that MCP binds to the 3' hydroxyl group of the ribose sugar backbone of nucleic acids, which prevents the interaction of MCP with other biomolecules such as proteins. MCP has also been used in urine samples as an antimicrobial agent against bacterial strains like Escherichia coli and Pseudomonas aeruginosa and yeast strains like Candida albicans and Saccharomyces cerevisiae. MCP is soluble in sodium carbonate at neutral pH, but insoluble in water or

Formula: C₂₁H₁₈O₅S

Purity: Min. 95%

Molecular weight: 382.43 g/mol

Ref: 3D-FM52657