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Thermo Scientific Chemicals o-Cresolphthalein complexone, indicator grade Product Code.: 11396676
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Thermo Scientific Chemicals o-Cresolphthalein complexone, indicator grade

Product Code. 11396676
5 g
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Quantity:
1 g
5 g
25 g
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Product Code. 11396676

Brand: Thermo Scientific Chemicals L03859.06

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Description

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 Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
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.

Solubility
Soluble in NaOH (50 mg/ml), aqueous ammonia, and organic solvents. Insoluble in water.

Notes
Store away from strong oxidizing agents. Keep container tightly closed. Store in cool, dry conditions in well sealed containers.
TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 2411-89-4
Molecular Formula C32H32N2O12
Molecular Weight (g/mol) 636.61
MDL Number MFCD00005911
InChI Key IYZPEGVSBUNMBE-UHFFFAOYSA-N
Synonym o-cresolphthalein complexone, phthalein purple, cresolphthalexon, o-cresolphthalexon, phthalein complexon, o-cresolphthalein complexon, cresolphthalein complexon, metal phthalein, cresolphthalein complexone, unii-a4p6737i7f
PubChem CID 75485
IUPAC 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
SMILES CC1=CC(=CC(CN(CC(O)=O)CC(O)=O)=C1O)C1(OC(=O)C2=CC=CC=C12)C1=CC(C)=C(O)C(CN(CC(O)=O)CC(O)=O)=C1

Specifications

Melting Point ∽198°C (decomposition)
Quantity 5 g
Beilstein 381994
Solubility Information Soluble in NaOH (50mg/ml),aqueous ammonia,and organic solvents. Insoluble in water.
Formula Weight 636.62
Grade Indicator
Chemical Name or Material o-Cresolphthalein complexone

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5 results found
Lot Number Certificate Type Date Catalog Number
Lot Number10253258 Certificate TypeCertificate of Analysis Date02/12/2024 Catalog NumberL03859.03,L03859.14,L03859.06
Lot Number10242222 Certificate TypeCertificate of Analysis Date19/07/2022 Catalog NumberL03859.03,L03859.14,L03859.06
Lot Number10234682 Certificate TypeCertificate of Analysis Date08/12/2021 Catalog NumberL03859.03,L03859.14,L03859.06
Lot NumberUSLF005542 Certificate TypeCertificate of Analysis Date08/12/2021 Catalog NumberL03859.03,L03859.14,L03859.06
Lot Number10162129 Certificate TypeCertificate of Analysis Date08/12/2021 Catalog NumberL03859.03,L03859.14,L03859.06

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