ChemicalBook > CAS DataBase List > o-Cresolphthalein Complexone

o-Cresolphthalein Complexone

Product Name
o-Cresolphthalein Complexone
CAS No.
2411-89-4
Chemical Name
o-Cresolphthalein Complexone
Synonyms
PC;O-CPC;exone;ein CompL;Nsc 298195;Cresolphtha;METAL PHTHALEIN;PHTHALEIN PURPLE;Cresolphthalexon;METALPHTHALEIN 1
CBNumber
CB6431655
Molecular Formula
C32H32N2O12
Formula Weight
636.61
MOL File
2411-89-4.mol
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o-Cresolphthalein Complexone Property

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 below +30°C.
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)
Water Solubility 
SLIGHTLY SOLUBLE
λmax
575nm, 377nm
BRN 
381994
Stability:
Stable. Incompatible with strong oxidizing agents.
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)
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Safety

Hazard Codes 
Xn
Risk Statements 
20/21/22-36/37/38
Safety Statements 
22-24/25-36-26
WGK Germany 
3
TSCA 
Yes
HS Code 
29322980
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
P5631
Product name
o-Cresolphthalein Complexone
Purity
powder
Packaging
1g
Price
$32.4
Updated
2024/03/01
Sigma-Aldrich
Product number
P5631
Product name
o-Cresolphthalein Complexone
Purity
powder
Packaging
5g
Price
$104
Updated
2024/03/01
Sigma-Aldrich
Product number
1.07297
Product name
Phthalein purple
Purity
metal indicator Reag. Ph Eur
Packaging
1g
Price
$268
Updated
2024/03/01
Sigma-Aldrich
Product number
1.07297
Product name
Phthalein purple
Purity
metal indicator Reag. Ph Eur
Packaging
10g
Price
$729
Updated
2024/03/01
TCI Chemical
Product number
C0405
Product name
Phthalein Complexon [Chelating Indicator]
Purity
>98.0%(T)
Packaging
1g
Price
$49
Updated
2024/03/01
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o-Cresolphthalein Complexone Chemical Properties,Usage,Production

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.]

o-Cresolphthalein Complexone Preparation Products And Raw materials

Raw materials

Preparation Products

Disperse Red 135 selfcrosslinking emulsion use dfor paper PC-01 series
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View Lastest Price from o-Cresolphthalein Complexone manufacturers

Hebei Chuanghai Biotechnology Co,.LTD
Product
o-Cresolphthalein Complexone 2411-89-4
Price
US $5.00-2.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10000kg
Release date
2024-08-20
Hebei Kingfiner Technology Development Co.Ltd
Product
o-Cresolphthalein Complexone 2411-89-4
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
50000kg
Release date
2024-06-17
Career Henan Chemical Co
Product
o-Cresolphthalein Complexone 2411-89-4
Price
US $1.00/KG
Min. Order
1G
Purity
99%
Supply Ability
100KG
Release date
2018-08-13

2411-89-4, o-Cresolphthalein ComplexoneRelated Search:

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