Ferene disodium salt CAS#: 79551-14-7; ChemWhat Code: 25976

IdentificationPhysical DataSpectra
Route of Synthesis (ROS)Safety and HazardsOther Data

Identification

Product NameFerene disodium salt
IUPAC Namedisodium;5-[3-pyridin-2-yl-6-(5-sulfonatofuran-2-yl)-1,2,4-triazin-5-yl]furan-2-sulfonate
Molecular Structure
CAS Registry Number 79551-14-7
Synonyms3-(2-pyridyl)-5,6-bis(2-(5-furyl sulfonic acid)-1,2,4-triazine), disodium salt, Ferene
Molecular FormulaC16H8N4O8S2*2Na
Molecular Weight494.373
InChI InChI=1S/C16H10N4O8S2.2Na/c21-29(22,23)12-6-4-10(27-12)14-15(11-5-7-13(28-11)30(24,25)26)19-20-16(18-14)9-3-1-2-8-17-9;;/h1-8H,(H,21,22,23)(H,24,25,26);;/q;2*+1/p-2
InChI KeyIVLSEFOVPQFJBB-UHFFFAOYSA-L
Canonical SMILESC1=CC=NC(=C1)C2=NC(=C(N=N2)C3=CC=C(O3)S(=O)(=O)[O-])C4=CC=C(O4)S(=O)(=O)[O-].[Na+].[Na+]

Physical Data

AppearanceYellow crystalline
Flash Point>70°C

Spectra

Description (NMR Spectroscopy)Comment (NMR Spectroscopy)
Spin-spin coupling constants1H-1H
Ferene disodium salt CAS 79551-14-7 HNMRFerene disodium salt CAS 79551-14-7 HNMR
Usual Required Specifications 1 of Ferene disodium salt CAS#: 79551-14-7
The material must be 5,5′(3-(2-pyridyl) -1,2,4 triazine-5,6 diyl) bis-2-furansulfonic acid, disodium salt, C16H8N4S2O8Na2 •3H2O
The molar extinction coefficient at 304 nm of Ferene in water must be 26,000 ±3%, when assayed as
follows:

Dissolve approximately 20 mg of ferene in one liter of distilled water. Determine the optical
density of the solution at 304 nm (one cm path length cell) and calculate the ε max at 304 nm.

Ferene disodium salt CAS 79551-14-7 formula 1
The molar extinction coefficient at 593 nm of Ferene in the presence of excess Fe+2 must be
≥ 34,000,under the following assay conditions: Solutions:
(1) Stock Buffer: 1.0 M sodium acetate, pH 4.75;
(2) Iron-ascorbic acid solution: Dissolve 35 mg FeSO4•7 H2O and 350 mg ascorbic acid in 100 mL of buffer; 
(3) Ferene solution: Dissolve approximately 20 mg ferene in 25 mL of distilled water. 
Mix equal volumes of solutions 2 and 3. Allow the color to develop for 10 minutes and then determine the
optical density of the solution at 593 nm employing a cell of 1.0 mm path length.
Ferene disodium salt CAS 79551-14-7 formula 2

Route of Synthesis (ROS)

Route of Synthesis (ROS) of Ferene disodium salt CAS 79551-14-7
ConditionsYield
With hydroxylamine hydrochloride In further solvent(s) Kinetics iron, complexone and hydroxylamine as reducing agent mixed with acetatebuffer, 1 M HCl or 1 M NaOH added to adjust required pH in a range 1-10; detected by UV spectroscopy

Safety and Hazards

Pictogram(s)exclamation-mark
SignalWarning
GHS Hazard StatementsH315: Causes skin irritation [Warning Skin corrosion/irritation]
H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]
H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
Information may vary between notifications depending on impurities, additives, and other factors.
Precautionary Statement CodesP261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501
(The corresponding statement to each P-code can be found at the GHS Classification page.)
For more detailed information, please visit ECHA C&L website
SDS DownloadEnglish Version (EC 1907/2006)
English Version GHS

Other Data

TransportationNot dangerous goods
At ambient temperature with a tightly closed container in a cool, dry place and keep away from light.
HS Code294200
StorageAt ambient temperature with a tightly closed container in a cool, dry place and keep away from light. If it will be stored in a refrigerator, it must be sealed well and moistureproof and out of contact with light.
Shelf Life2 years
Market PriceUSD 9500/kg
Use Pattern
3-(2-Pyridyl)-5,6-di(2-furyl)-1,2,4-triazine-5′,5′′-disulfonic acid disodium salt also known as Ferene is a chelating agent which usually binds with Fe2+ ion to form coloured complex. Colorimetric reagent for iron, which is more sensitive than other reagents (e.g. Ferrozine), molar absorptivity 35500 liters/mol cm.
It was used in chromogen screening while studying non-transferrin-bound iron quantification. It was used in measuring the chelating activity on ferrous ions.
Iron complexing reagent

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