CAS 2411-89-4

o-Cresolphthalein complexone

Description:

o-Cresolphthalein complexone, with the CAS number 2411-89-4, is a chemical compound commonly used as a chelating agent in analytical chemistry. It is particularly effective in complexing metal ions, making it valuable in titrations and colorimetric assays. The compound exhibits a distinct color change when it binds to certain metal ions, such as calcium and magnesium, which allows for visual detection and quantification. o-Cresolphthalein complexone is typically soluble in organic solvents and has a moderate solubility in water, depending on the pH of the solution. Its structure features a phenolic group, which contributes to its ability to form stable complexes with metal ions. This property makes it useful in various applications, including water hardness testing and in the determination of metal concentrations in environmental samples. Additionally, it is important to handle this compound with care, as it may pose health risks if ingested or inhaled, and appropriate safety measures should be taken during its use.

Formula: C₃₂H₃₂N₂O₁₂

InChI: InChI=1/C32H32N2O12/c1-17-7-21(9-19(29(17)43)11-33(13-25(35)36)14-26(37)38)32(24-6-4-3-5-23(24)31(45)46-32)22-8-18(2)30(44)20(10-22)12-34(15-27(39)40)16-28(41)42/h3-10,43-44H,11-16H2,1-2H3,(H,35,36)(H,37,38)(H,39,40)(H,41,42)/p-2

InChI key: InChIKey=IYZPEGVSBUNMBE-UHFFFAOYSA-N

SMILES: O=C1OC(C=2C1=CC=CC2)(C3=CC(CN(CC(O)=O)CC(O)=O)=C(O)C(C)=C3)C4=CC(CN(CC(O)=O)CC(O)=O)=C(O)C(C)=C4

Synonyms:

• 1,3-Dihydro-3-Oxoisobenzofuran-1-Ylidenebis(6-Hydroxy-5-Methyl-M-Phenylenemethylenenitrilo)Tetra-Acetic Acid
• 2,2',2'',2'''-{(3-Oxo-1,3-Dihydro-2-Benzofuran-1,1-Diyl)Bis[(6-Hydroxy-2,5-Dimethylbenzene-3,1-Diyl)Methanediylnitrilo]}Tetraacetic Acid
• 2,2',2'',2'''-{(3-Oxo-1,3-Dihydro-2-Benzofuran-1,1-Diyl)Bis[(6-Hydroxy-5-Methylbenzene-3,1-Diyl)Methanediylnitrilo]}Tetraacetic Acid
• 2,2'-[(3-Oxo-1,3-Dihydro-2-Benzofuran-1,1-Diyl)Bis{(6-Hydroxy-5-Methylbenzene-3,1-Diyl)Methanediyl[(Carboxymethyl)Imino]}]Diacetate (Non-Preferred Name)
• 2-[[5-[1-[3-[[Carboxylatomethyl(carboxymethyl)azaniumyl]methyl]-4-hydroxy-5-methylphenyl]-3-oxo-2-benzofuran-1-yl]-2-hydroxy-3-methylphenyl]methyl-(carboxymethyl)azaniumyl]acetate
• 3,3′-Bis[N,N-bis(carboxymethyl)aminomethyl]-o-cresolphthalein
• 3,3′-Bis[N,N-di(carboxymethyl)aminomethyl]-o-cresolphthalein
• Cresolphthalein complexon
• Cresolphthalexon
• Glycine, N,N′-[(3-oxo-1(3H)-isobenzofuranylidene)bis[(6-hydroxy-5-methyl-3,1-phenylene)methylene]]bis[N-(carboxymethyl)-
• N,N′-[(3-Oxo-1(3H)-isobenzofuranylidene)bis[(6-hydroxy-5-methyl-3,1-phenylene)methylene]]bis[N-(carboxymethyl)glycine]
• NSC 298195
• Phenolphthalein, 3′,3′′-bis[[bis(carboxymethyl)amino]methyl]-5′,5′′-dimethyl-
• Phthalein Complexon
• Phthalein Purple
• Phthalein complexone
• o-Cresolphthalein complexon
• o-Cresolphthalexon
• o-Cresolphthalexone
• o-Cresolphthalexon~Phthalein complexone
• o-Cresolphthalein Complexon 〔Phthalein Complexon〕
• PHTHALEIN COMPLEXON(CHELATING INDIC)SU
• XYLENYLPHTHALEIN-BISIMINODIACETIC ACID
• Metalphthalein, Reagent
• glycine,n,n’-[(3-oxo-1(3h)-isobenzofuranylidene)bis[(6-hydroxy-5-methyl-3,1-ph
• o-Cresolphthalexon, Metal phthalein, Phthalein purple, Xylenylphthalein-bisiminodiacetic acid, o-Cresolphthalein-3μ,3μμ-bis-methyleneiminodiacetic acid
• o-Cresolphthalein CoMplexone, pure 5GR
• O-CRESOLPHTHALEIN-3',3''-BIS-METHYLENEIMINODIACETIC ACID
• o-Cresolphthalein Complexone(R)
• O-CresolphtnaleinComplexone
• o-Cresolphthalein Co
• O-CRESOLPHTHALEIN-3',3''-BIS(METHYLIMINODI-ACETIC ACID)
• Cresolphtha
• o-Cresolphthalein complexone p.a.
• 3',3"-Bis[[bis(carboxymethyl)amino]methyl]-5', 5"-dimethylphenolphthalein
• CRESOL PHTHALEXONE
• enylene)methylene]]bis[n-(carboxymethyl)-
• XYLENOLPHTHALEIN-BIS(MINODIACETIC ACID)
• Phthalein Complexon [Chelating Indicator]
• CRESOLPHTHALEIN COMPLEXONE
• 3,3′-bis[n,n-di(carboxymethyl)amino-methyl]-o-cresolphthalein
• N,N’-[(3-oxo-1(3H)-isobenzofuranylidene]bis[(6-hydroxy-5-methyl-3,1-phenylene)methylene)]bis(n-(cGlycine
• METALPHTHALEIN 1
• 2-[[5-[1-[3-[(Bis(carboxymethyl)amino)methyl]-4-hydroxy-5-methyl-phenyl]-3-oxo-isobenzofuran-1-yl]-2-hydroxy-3-methyl-phenyl]methyl-(carboxymethyl)amino]acetic acid
• Metalphthalein, n-hydrate
• METALPHTHALEIN REAGENT (ACS)
• PHTHALEIN PURPLE METAL INDICATOR
• CRESOLPHTHALEIN-BISMETHYLIMINODIACETIC ACID
• O-CRESOLPHTHALEIN COMPLEXONE INDIC (PHTHALEIN COMPLEXON)
• o-Cresolphthalein Complexone, pure
• METAL PHTHALEINE
• Cresolphthalein-bismethyliminodiacetic Acid
• PHTHALEIN PURPLE INDICATOR FOR METALTITR ATION
• O-CRESOLPHTHALEIN COMPLEXONE
• O-CresolphthaleinComplexone-(MetalPhthalein,PhthaleinPurple,O-Cresolphthlexon)
• O-CresolphthaleineComplexone
• 2-cresolphthalexon
• Phthalein purple metal indicator Reag. Ph Eur
• O-CRESOLPHTHALEINDI-(METHYLIMINODI-ACETIC ACID)
• O-CRESOLPHTHALEIN COMPLEXON, INDICATOR F OR COMPLEXOMETRY
• o-Cresolphthalein coMplexone, ACS reagent, indicator
• Metal Phthalein
• o-cresolphthalein complexone, indicator grade

Glycine, N,​N'-​[(3-​oxo-​1(3H)​-​isobenzofuranylidene​)​bis[(6-​hydroxy-​5-​methyl-​3,​1-​phenylene)​methylene]​]​bis[N-​(carboxymethyl)​-

CAS: 2411-89-4

Formula: C₃₂H₃₂N₂O₁₂

Purity: 98%

Color and Shape: Solid

Molecular weight: 636.6027

Ref: IN-DA00IKHI

o-Cresolphthalein Complexone

CAS: 2411-89-4

o-Cresolphthalein Complexone

Purity: ≥95%

Molecular weight: 636.6g/mol

Ref: 54-BUP13600

o-Cresolphthalein complexone

CAS: 2411-89-4

Formula: C₃₂H₃₂N₂O₁₂

Color and Shape: White or off-white powder

Molecular weight: 636.62

Ref: 7W-GT0978

o-Cresolphthalein Complexone

CAS: 2411-89-4

o-Cresolphthalein Complexone

Purity: IND

Molecular weight: 636.60g/mol

Ref: 54-OR1014525

o-Cresolphthalein Complexone

CAS: 2411-89-4

o-Cresolphthalein Complexone is a metal complexing indicator and an acid-base indicator.

Formula: C₃₂H₃₂N₂O₁₂

Color and Shape: Light Pink To Tan Crystalline Solid

Molecular weight: 636.6

Ref: TM-T9241

o-​Cresolphthalein Complexone

Controlled Product

CAS: 2411-89-4

Stability Hygroscopic
Applications o-​Cresolphthalein Complexone is an indicator used to identify calcium in solution, turning the solution a violet color. Used in smooth muscle cell analysis. Dyes and metabolites.
References Chen, T., et al.: Biomed. Res. Int., 194362 (2015);

Formula: C₃₂H₃₂N₂O₁₂

Color and Shape: Neat

Molecular weight: 636.6

Ref: TR-C782150

o-Cresolphthalein Complexone (Phthalein Purple) ACS, 80%

CAS: 2411-89-4

Formula: C₃₃H₃₂N₂O₁₂

Purity: 80%

Color and Shape: Off-white, Crystalline powder, Passes test

Molecular weight: 636.62

Ref: SR-64982

Phthalein purple

CAS: 2411-89-4

Phthalein purple is a fluorescent dye that is used as a calcium indicator for clinical pathology. It has been shown to be useful in the measurement of calcium levels in human serum and plasma, as well as in other biological fluids. Phthalein purple binds to calcium ions and forms stable complexes with them. A linear calibration curve can be obtained using this dye when runx2 gene transcription is induced by polymerase chain reaction (PCR) with primers and probes. The function of this dye can be determined by measuring the amount of fluorescence emitted when it is excited at a particular wavelength. The stability of this dye can also be determined by monitoring its fluorescence intensity over time. This dye can also act as a molecular probe for the detection of osteogenic genes and metabolic disorders, such as Paget's disease or Gaucher's disease.br>

Formula: C₃₂H₃₂N₂O₁₂

Purity: 80%

Color and Shape: Powder

Molecular weight: 636.6 g/mol

Ref: 3D-FP47250

o-Cresolphthalein complexone, indicator grade

CAS: 2411-89-4

Indicator for complexometric titration of Mg, Ca, Sr and Ba. It is used as an alkaline earth metal ion indicator. Suggested to be colorless at pH 11, but turns pink in the presence of alkaline earth metals. Also utilized in an auto analyzer to determine serum calcium. This Thermo Scientific Chemical

Formula: C₃₂H₃₂N₂O₁₂

Color and Shape: White to cream, Powder

Molecular weight: 636.61

Ref: 02-L03859