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71778

Sodium nitroprusside dihydrate

Name: Sodium nitroprusside dihydrate
Brand: SIGALD

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

Synonym(s):

Nitroprusside sodium, SNP, Sodium nitroferricyanide, Sodium pentacyanonitrosylferrate

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About This Item

Linear Formula:

Na₂[Fe(CN)₅NO] · 2H₂O

CAS Number:

13755-38-9

Molecular Weight:

297.95

NACRES:

NB.24

PubChem Substance ID:

329763522

UNSPSC Code:

12352300

EC Number:

238-373-9

MDL number:

MFCD00149192

Assay:

≥99%

Form:

crystals or chunks

Solubility:

water: soluble(lit.)

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Properties

Quality Level

200

agency

reag. Ph. Eur., suitable for SM 4500 - NH3

grade

ACS reagent, puriss. p.a.

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.