Ferene disodium salt CAS#: 79551-14-7; ChemWhat Code: 25976
Identification
| Product Name | Ferene disodium salt | 
| IUPAC Name | disodium;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 | 
| Synonyms | 3-(2-pyridyl)-5,6-bis(2-(5-furyl sulfonic acid)-1,2,4-triazine), disodium salt, Ferene | 
| Molecular Formula | C16H8N4O8S2*2Na | 
| Molecular Weight | 494.373 | 
| 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 Key | IVLSEFOVPQFJBB-UHFFFAOYSA-L | 
| Canonical SMILES | C1=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
| Appearance | Yellow crystalline | 
| Flash Point | >70°C | 
Spectra
| Description (NMR Spectroscopy) | Comment (NMR Spectroscopy) | 
| Spin-spin coupling constants | 1H-1H | 
| Ferene 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.  | 
| 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.  | 
Route of Synthesis (ROS)

| Conditions | Yield | 
| 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) | ![]()  | 
| Signal | Warning | 
| GHS Hazard Statements | H315: 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 Codes | P261, 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 Download | English Version (EC 1907/2006) | 
| English Version GHS | 
Other Data
| Transportation | Not dangerous goods | 
| At ambient temperature with a tightly closed container in a cool, dry place and keep away from light. | |
| HS Code | 294200 | 
| Storage | At 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 Life | 2 years | 
| Market Price | USD 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 | 
Buy Reagent | |
| Sigma-Aldrich P4272 | 1g, 5g, 25g | 
| ChemWhat 25976 | 50g, 100g, 200g, 250g, 500g | 
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Approved Manufacturers | |
| 江苏沃尔森生物科技有限公司 | https://www.watson.bio/ | 
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Other Suppliers | |
| Watson International Limited | Visit Watson Official Website | 
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