phthalein purple
o-Cresolphthalein Complexone
CAS: 2411-89-4
Molecular Formula: C32H32N2O12
phthalein purple - Names and Identifiers
| Name | o-Cresolphthalein Complexone |
| Synonyms | phthalein purple Phthalein Complexon o-Cresolphthalein Complexone Phthalocyanine indicator solution XYLENOLPHTHALEIN-BIS(MINODIACETIC ACID) o-Cresolphthalexon~Phthalein complexone enylene)methylene]]bis[n-(carboxymethyl)- Glycine,N,N'-[(3-oxo-1(3H)-isobenzofuranylidene)bis[(6-hydroxy-5-methyl-3,1- glycine,n,n'-[(3-oxo-1(3h)-isobenzofuranylidene)bis[(6-hydroxy-5-methyl-3,1-ph METALPHTHALEIN, REAGENT (ACS)METALPHTHALEIN, REAGENT (ACS)METALPHTHALEIN, REAGENT (ACS) N,N'-[(3-oxo-1(3H)-isobenzofuranylidene]bis[(6-hydroxy-5-methyl-3,1-phenylene)methylene)]bis(n-(cGlycine 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-5-methylbenzene-3,1-diyl)methanediylnitrilo]}tetraacetic 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'-[(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-[[bis(carboxymethyl)amino]methyl]-4-hydroxy-5-methylphenyl]-3-oxo-2-benzofuran-1-yl]-2-hydroxy-3-methylphenyl]methyl-(carboxymethyl)amino]acetic acid |
| CAS | 2411-89-4 |
| EINECS | 219-318-8 |
| 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 |
| InChIKey | IYZPEGVSBUNMBE-UHFFFAOYSA-N |
phthalein purple - Physico-chemical Properties
| Molecular Formula | C32H32N2O12 |
| Molar Mass | 636.61 |
| Density | 1.515±0.06 g/cm3(Predicted) |
| Melting Point | 181-185°C (dec.)(lit.) |
| Boling Point | 892.1±65.0 °C(Predicted) |
| Flash Point | 493.4°C |
| Water Solubility | SLIGHTLY SOLUBLE |
| Solubility | Easily soluble in water, insoluble in ethanol and ether. Colorless alkali solution can be complexed with calcium, strontium, and barium salts to form purple or dark red, complexed with magnesium to be pink, and complexed with heavy metals to be colorless. Melting point 181~185 ℃ (decomposition). The maximum absorption wavelength is 575(377)nm. The commodity also has sodium containing water. |
| Vapor Presure | 3.5E-34mmHg at 25°C |
| Appearance | White to brown crystalline powder |
| Color | white to off-white |
| Maximum wavelength(λmax) | ['575nm, 377nm'] |
| BRN | 381994 |
| pKa | 1.47, 8.24(at 25℃) |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| MDL | MFCD00005911 |
| Use | Used as complexation indicator |
phthalein purple - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. S36 - Wear suitable protective clothing. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29322980 |
phthalein purple - Introduction
Complexometric titration indicator for the determination of calcium, strontium, barium, magnesium and cadmium.
Last Update：2022-10-16 17:15:11
phthalein purple - Reference Information
| pH indicator color change ph range | Colorless (8.2) to red (9.8) |
| main applications | 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 |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| overview | o-cresolphthalein is also called o-toluene phenolphthalein (C22H18O4mol346.38) white or yellow powder, easily soluble in ethanol and ether; Insoluble in water, soluble in dilute alkali, blue, pH 8.2-9.8 (color from colorless to red); The maximum absorption peak is 566(381)mm. |
| application | o-cresolphthalein complexing agent is a metal complexation indicator and also an acid-base indicator. Chelate with calcium and magnesium in acidic solution to form purple chelate. |
| Use | Used as a complexing indicator Complexometric titration of magnesium, calcium, strontium, barium and SO42-indicator; reagent for the determination of serum calcium Reagent, chelating ion chromatography complexing ligand of trace metal ions Complexometric titration indicator, determination of calcium, strontium, barium, magnesium and cadmium |
Last Update：2024-04-10 22:29:15
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Tel: 15335994747
Email: 3521670276@qq.com
Mobile: 15335994747
QQ: 3521670276
Wechat: A2020071098
Spot supply
Product Name: o-Cresolphthalein complexon Visit Supplier Webpage Request for quotationCAS: 2411-89-4
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
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