Advanced Search
Chemicals
Search Lab Chemicals by Category
Advanced Search
New Products
LOBA TLC Sprayer
Mn Filter
R&D / GMP
Process R&D
Process R&D
Process Development
Contract Research
Validation Services
Chiral Chemistry
Flow Chemistry
Custom Synthesis
Contract Manufacturing
Contract Manufacturing
GMP Facility
Specialized Intermediates
List of Manufactured Products
Contact Us
Home
Lab Chemicals
Complexometric Indicators
o-CRESOLPHTHALEIN COMPLEXONE
o-CRESOLPHTHALEIN COMPLEXONE For Complexometry
Reagent for the automated determination of calcium in
serum indicator for complexometric titration of Mg, Ca,
Ba, Sr and SO4.
o-Cresolphthalein-3',3''-bis-methyleneiminodiacetic acid; o-Cresolphthalexon; Metal phthalein; Phthalein purple; Xylenylphthalein-bisiminodiacetic acid
Article No.
03011
Grade
For Complexometry
Purity
CAS No.
2411-89-4
Molecular Formula
C
3
2
H
3
2
N
2
O
1
2
Molecular Weight
636.61
H.S. Code
2933.2990
Shelf Life
60 Months
MSDS
DE
EN
FR
KO
PT
ES
TH
TR
Certificate of Analysis (COAs)
Physical Properties
Physical state at 20 °C
Solid
Colour
Light brown
Melting point/ Freezing point [°C]
219 - 221 °C
Packings
1 g
(00001)
5 g
(00005)
Specifications
Appearance
Off-white to pink beige powder
Absorption maxima in 0.1mol/L NaOH
573 - 579 nm
Absorptivity (1%/1cm; at λmax; 0.005g/L 0.1 M NaOH solution)
Min 750
Water (by KF)
Max 10%
Suitability (as indicator)
Passes test
Safety Information and Hazard Symbols
Safety Statement: 22-24/25
Revision Date :
23-Sep-2020