Calconcarboxylic acid

SIGMA/H3128 - suitable for use as an indicator for the titration of calcium

Synonym: 2-Hydroxy-1-(2-hydroxy-4-sulfo-1-naphthylazo)-3-naphthoic acid; 3-Hydroxy-4-(2-hydroxy-4-sulfo-1-naphthylazo)naphthalene-2-carboxylic acid; Patton and Reeder’s reagent

CAS Number: 3737-95-9
Empirical Formula (Hill Notation): C₂₁H₁₄N₂O₇S
Molecular Weight: 438.41
EC Number: 223-117-0
MDL Number: MFCD00004078
Linear Formula: C₂₁H₁₄N₂O₇S
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-H3128-5G	5 g	$51.90 1/EA	Add To Favorites
45-H3128-25G	25 g	$165.00 1/EA	Add To Favorites
45-H3128-100G	100 g	$538.00 1/EA	Add To Favorites

FT-IR Spectra for 2-Hydroxy-1-(2-hydroxy-4-sulfo-1-naphthylazo)-3-naphthoic acid.

This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: H3128-100G

Properties
Descriptions
Safety Info.
Basic Data

application(s)	diagnostic assay manufacturing hematology histology
form	powder
InChI	1S/C21H14N2O7S/c24-16-10-17(31(28,29)30)13-7-3-4-8-14(13)18(16)22-23-19-12-6-2-1-5-11(12)9-15(20(19)25)21(26)27/h1-10,24-25H,(H,26,27)(H,28,29,30)/b23-22-
InChI key	MVQBFZXBLLMXGS-FCQUAONHSA-N
mp	300 °C
Quality Level	100
SMILES string	OC(=O)c1cc2ccccc2c(N=Nc3c(O)cc(c4ccccc34)S(O)(=O)=O)c1O
solubility	1 M NaOH: 10 mg/mL
storage temp.	room temp

Analysis Note:	Contains an inert diluent.
Application:	Calconcarboxylic acid (CCA) has been used in the preparation of poly-CCA film for leukemia diagnosis by immobilization, hybridization of DNA and detection by methylene blue and differential pulse voltammetry.
General description:	Calconcarboxylic acid is a useful indicator for calcium titrations with EDTA in the presence of magnesium. It is also required for the staining of proteins in gels.
General description:	Calconcarboxylic acid is also known as Patton-Reeder indicator and is used in the determination of calcium at pH 12. Calconcarboxylic acid is a chelating agent and is used in the preparation of chelating sorbent along with chemically modified silica LiChroprep-NH₂, for trace metal analysis. Calconcarboxylic acid coupled with 3-aminopropyltriethoxysilane (APS-CCA), a fluorescent probe, facilitates the medical detection of Ca²⁺ ions in the blood with minimal blood backgrounds using hydrophobic hexadecyltrimethoxysilane (HDS) as substrate in fluorimetric microarray method.
Packaging:	5, 25, 100 g in glass bottle

Symbol	GHS07
Signal word	Warning
Hazard statements	H315 - H319 - H335
Precautionary statements	P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
Hazard Codes	Xi
Risk Statements	36/37/38
Safety Statements	26-36
RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable

mp	300 °C
Storage Temp.	room temp
UNSPSC	12171500

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