Merck
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71778

Sigma-Aldrich

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:
Molecular Weight:
297.95
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NB.24

grade

ACS reagent
puriss. p.a.

Quality Level

Agency

reag. Ph. Eur.

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 (SO42-): ≤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

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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.

Pictograms

Skull and crossbones

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Oral

Storage Class Code

6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

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