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251410

Sigma-Aldrich

Sodium thiocyanate

ACS reagent, ≥98.0%

Synonym(s):

Sodium isothiocyanate, Sodium rhodanate, Sodium rhodanide, Sodium sulfocyanate

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100 G
$65.00
500 G
$240.00
2.5 KG
$756.00

$65.00

Estimated to ship onMarch 29, 2025

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100 G
$65.00
500 G
$240.00
2.5 KG
$756.00

About This Item

Linear Formula:
NaSCN
CAS Number:
540-72-7
Molecular Weight:
81.07
Beilstein/REAXYS Number:
3594965
EC Number:
208-754-4
MDL number:
MFCD00011123
UNSPSC Code:
12352302
PubChem Substance ID:
329752781
NACRES:
NA.21
assay:
≥98.0%
grade:
ACS reagent
form:
powder, crystals or chunks
solubility:
water: soluble 1,000 g/L at 20 °C

$65.00

Estimated to ship onMarch 29, 2025

Request a Bulk Order

grade

ACS reagent

Quality Level

200

assay

≥98.0%

form

powder, crystals or chunks

impurities

≤0.005% insolubles
≤0.2% Na2CO3

pH

4.8 (20.1 °C, 1070 g/L)

mp

287 °C (dec.) (lit.)

solubility

water: soluble 1,000 g/L at 20 °C

anion traces

S2-: ≤0.001%
chloride (Cl-): ≤0.01%
sulfate (SO42-): ≤0.01%

cation traces

Fe: ≤2 ppm
NH4+: ≤0.002%
heavy metals (as Pb): ≤5 ppm

SMILES string

[Na]SC#N

InChI

1S/CHNS.Na/c2-1-3;/h3H;/q;+1/p-1

InChI key

VGTPCRGMBIAPIM-UHFFFAOYSA-M

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Application

Undergoes nucleophilic substitution reactions with phase-transfer catalysts.[1]

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1

supp_hazards

EUH032

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKCS7705
MKCS7703
MKCR2749
MKCQ3401
MKCM8735

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To describe a robust pretreatment protocol for preparing paraffin wax embedded tissues on tissue microarrays for fluorescence in situ hybridisation (FISH). The newly developed pretreatment protocol described here was compared with the commonly used sodium thiocyanate based protocol and two
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