71778

Sodium nitroprusside dihydrate

puriss. p.a., ACS reagent, reag. Ph. Eur., ≥99%

• Synonym(s): Nitroprusside sodium, SNP, Sodium nitroferricyanide, Sodium pentacyanonitrosylferrate
• Linear Formula: Na₂[Fe(CN)₅NO] · 2H₂O
• CAS Number: 13755-38-9
• Molecular Weight: 297.95
• EC Number: 238-373-9
• MDL number: MFCD00149192
• UNSPSC Code: 12352300
• PubChem Substance ID: 329763522
• NACRES: NB.24

Properties

• grade: ACS reagent; puriss. p.a.
• Quality Level: 200
• agency: reag. Ph. Eur.; suitable for SM 4500 - NH3
• assay: ≥99%
• form: crystals or chunks
• solubility: water: soluble(lit.)
• anion traces: chloride (Cl^-): ≤100 mg/kg; hexacyanoferrate(II) ([Fe(CN)₆]^4-): ≤200 mg/kg; hexacyanoferrate(III) ([Fe(CN)₆]^3-): ≤100 mg/kg; sulfate (SO₄^2-): ≤100 mg/kg
• cation traces: Ca: ≤10 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤50 mg/kg; Cu: ≤5 mg/kg; K: ≤3000 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Zn: ≤50 mg/kg
• SMILES string: O.O.[Na+].[Na+].O=N[Fe--](C#N)(C#N)(C#N)(C#N)C#N
• InChI: 1S/5CN.Fe.NO.2Na.2H2O/c5*1-2;;1-2;;;;/h;;;;;;;;;2*1H2/q;;;;;2*-1;2*+1;;
• InChI key: OIRZWVYIQXBRFC-UHFFFAOYSA-N

Description

General description

Sodium nitroprusside dihydrate (Disodium pentacyanonitrosylferrate(2-)dihydrate, SNP) molecule contains a ferrous ion in the center, which is surrounded by five cyanide groups and a nitrosyl group. Sodium nitroprusside has clinical applications. It acts as a rapid-acting vasodilator. It is also widely employed as nitric oxide (NO) donor in various experimental models. Two metastable states of sodium nitroprusside dihydrate, Na₂[Fe(CN)₅NO].2H₂O have been identified and their geometries have been studied by X-ray diffraction.

Safety Information

• pictograms: GHS06
• signalword: Danger
• hcodes: H301
• pcodes: P264 - P270 - P301 + P310 - P405 - P501
• Hazard Classifications: Acute Tox. 3 Oral
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable