4-(2-Pyridylazo)resorcinol monosodium salt hydrate

SIAL/178268

Synonym: PAR monosodium salt hydrate

CAS Number: 16593-81-0
Empirical Formula (Hill Notation): C₁₁H₈N₃NaO₂ · xH₂O
Molecular Weight: 237.19 (anhydrous basis)
MDL Number: MFCD00150712
Linear Formula: C₁₁H₈N₃NaO₂ · xH₂O
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-178268-5G	5 g	$165.00 1/EA	Add To Favorites
45-178268-10G	10 g	$295.00 1/EA	Add To Favorites

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: 178268-10G.

Properties
Descriptions
Safety Info.
Basic Data

λ_max	411 nm
application(s)	diagnostic assay manufacturing hematology histology
assay	≥97.5% (HPLC)
form	powder or crystals
InChI	1S/C11H9N3O2.Na.H2O/c15-8-4-5-9(10(16)7-8)13-14-11-3-1-2-6-12-11;;/h1-7,15-16H;;1H2/q;+1;/p-1/b14-13+;;
InChI key	KMHFHNVYQMFVAN-QDBORUFSSA-M
Quality Level	200
SMILES string	[Na+].[H]O[H].Oc1cc([O-])ccc1N=Nc2ccccn2
storage temp.	room temp

Application:	4-(2-Pyridylazo)resorcinol monosodium salt hydrate has been used in the preparation of titanium reagent for the spectrometric measurement of hydrogen peroxide (H₂O₂) and superoxide anion (O^2•-). It is also suitable to measure the concentration of Zn²⁺, Zinc transition metal ions.
General description:	4-(2-Pyridylazo)resorcinol monosodium salt is a chromophoric indicator and chromogenic chelator employed for the spectrophotometric determination of several metal ions.
Packaging:	5, 10 g in glass bottle

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

Purity	≥97.5% (HPLC)
Storage Temp.	room temp
UNSPSC	12171500

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