| Identification | Back Directory | [Name]
o-Cresolphthalein Complexone | [CAS]
2411-89-4 | [Synonyms]
Nsc 298195
Cresolphtha
METAL PHTHALEIN
METALPHTHALEIN 1
METAL PHTHALEINE
PHTHALEIN PURPLE
Cresolphthalexon
O-CRESOLPHTHALEXON
CRESOL PHTHALEXONE
2-cresolphthalexon
O-CRESOLPHTHALEXONE
PHTHALEIN COMPLEXON
PHTHALEIN COMPLEXONE
o-Cresolphthalein Co
Metalphthalein, Reagent
Metalphthalein, n-hydrate
Cresolphthalein Complexon
CRESOLPHTHALEIN COMPLEXONE
O-CresolphtnaleinComplexone
O-CRESOLPHTHALEIN COMPLEXON
O-CRESOLPHTHALEIN COMPLEXONE
O-CresolphthaleineComplexone
METALPHTHALEIN REAGENT (ACS)
PHTHALEIN PURPLE METAL INDICATOR
o-Cresolphthalein Complexone(R)
o-Cresolphthalein complexone p.a.
o-Cresolphthalein Complexone, pure
o-Cresolphthalein CoMplexone, pure 5GR
PHTHALEIN COMPLEXON(CHELATING INDIC)SU
XYLENYLPHTHALEIN-BISIMINODIACETIC ACID
XYLENOLPHTHALEIN-BIS(MINODIACETIC ACID)
o-Cresolphthalexon~Phthalein complexone
enylene)methylene]]bis[n-(carboxymethyl)-
Phthalein Complexon [Chelating Indicator]
CRESOLPHTHALEIN-BISMETHYLIMINODIACETIC ACID
o-cresolphthalein complexone, indicator grade
Phthalein purple metal indicator Reag. Ph Eur
PHTHALEIN PURPLE INDICATOR FOR METALTITR ATION
O-CRESOLPHTHALEINDI-(METHYLIMINODI-ACETIC ACID)
o-Cresolphthalein Complexon 〔Phthalein Complexon〕
o-Cresolphthalein coMplexone, ACS reagent, indicator
O-CRESOLPHTHALEIN-3',3''-BIS(METHYLIMINODI-ACETIC ACID)
O-CRESOLPHTHALEIN-3',3''-BIS-METHYLENEIMINODIACETIC ACID
O-CRESOLPHTHALEIN COMPLEXONE INDIC (PHTHALEIN COMPLEXON)
O-CRESOLPHTHALEIN COMPLEXON, INDICATOR F OR COMPLEXOMETRY
3,3'-BIS[N,N-BIS(CARBOXYMETHYL)AMINOMETHYL]-O-CRESOLPHTHALEIN
3,3′-bis[n,n-di(carboxymethyl)amino-methyl]-o-cresolphthalein
3',3"-Bis[[bis(carboxymethyl)amino]methyl]-5', 5"-dimethylphenolphthalein
Phenolphthalein, 3′,3′′-bis[[bis(carboxymethyl)amino]methyl]-5′,5′′-dimethyl-
O-CresolphthaleinComplexone-(MetalPhthalein,PhthaleinPurple,O-Cresolphthlexon)
glycine,n,n’-[(3-oxo-1(3h)-isobenzofuranylidene)bis[(6-hydroxy-5-methyl-3,1-ph
N,N’-[(3-oxo-1(3H)-isobenzofuranylidene]bis[(6-hydroxy-5-methyl-3,1-phenylene)methylene)]bis(n-(cGlycine
Cresolphthalein-bismethyliminodiacetic Acid
o-Cresolphthalein Complexon
Metal Phthalein
Phthalein Purple
1,3-dihydro-3-oxoisobenzofuran-1-ylidenebis(6-hydroxy-5-methyl-m-phenylenemethylenenitrilo)tetra-acetic acid
Glycine, N,N'-[(3-oxo-1(3H)-isobenzofuranylidene)bis[(6-hydroxy-5-methyl-3,1-phenylene)methylene]]bis[N-(carboxymethyl)-
o-Cresolphthalexon, Metal phthalein, Phthalein purple, Xylenylphthalein-bisiminodiacetic acid, o-Cresolphthalein-3μ,3μμ-bis-methyleneiminodiacetic acid
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 | [EINECS(EC#)]
219-318-8 | [Molecular Formula]
C32H32N2O12 | [MDL Number]
MFCD00005911 | [MOL File]
2411-89-4.mol | [Molecular Weight]
636.6 |
| Chemical Properties | Back Directory | [Appearance]
White powder | [Melting point ]
181-185 °C (dec.)(lit.)
| [Boiling point ]
892.1±65.0 °C(Predicted) | [density ]
1.515±0.06 g/cm3(Predicted) | [storage temp. ]
Store at RT. | [solubility ]
NaOH: soluble50mg/mL | [form ]
Powder | [pka]
1.47, 8.24(at 25℃) | [color ]
white to off-white | [PH Range]
Colorless (8.2) to red (9.8) | [Stability:]
Stable. Incompatible with strong oxidizing agents. | [Water Solubility ]
SLIGHTLY SOLUBLE | [λmax]
575nm, 377nm | [BRN ]
381994 | [Major Application]
Sensors, photoconductors, copying materials, rubber, body fiuid testing, determination of calcium, magnesium, tin, method for measuring urea nitrogen, liposomal construct for diagnostic use, cardiovascular disease, antibacterial agent | [InChIKey]
IYZPEGVSBUNMBE-UHFFFAOYSA-N | [EPA Substance Registry System]
Glycine, N,N'-[(3-oxo-1(3H)-isobenzofuranylidene) bis[(6-hydroxy-5-methyl-3, 1-phenylene)methylene]]bis[ N-(carboxymethyl)-(2411-89-4) |
| Hazard Information | Back Directory | [Chemical Properties]
White powder | [Uses]
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. | [Purification Methods]
o-Cresolphthalein (a complexon precursor without the two bis-carboxymethylamino groups) is a contaminant and is one of the starting materials. It can be removed by dissolving the reagent in H2O and adding a 3-fold excess of sodium acetate and fractionally precipitating it by dropwise addition of HCl to the clear filtrate. Wash the precipitate with cold H2O and dry the monohydrate at 30o in a vacuum. The pure material gives a single spot on paper chromatography (eluting solvent EtOH/water/phenol, 6:3:1, and developing with NaOH). [Anderegg et al. Helv Chim Acta 37 113 1954.] It complexes with Ba, Ca, Cd, Mg and Sr. [Beilstein 18 III/IV 8141.] |
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