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Merck
CN

S7143

Sigma-Aldrich

Sodium thiosulfate pentahydrate

ACS reagent, pH 6.0-8.4 (25 °C, 5% in solution), 99.5-101.0%

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About This Item

Linear Formula:
Na2S2O3 · 5H2O
CAS Number:
10102-17-7
Molecular Weight:
248.18
EC Number:
231-867-5
MDL number:
MFCD00149186
UNSPSC Code:
12352200

Key Documents

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grade

ACS reagent

Assay

99.5-101.0%

impurities

≤0.002% Nitrogen compounds (as N)
≤0.005% Insoluble matter

pH

6.0-8.4 (25 °C, 5% in solution)

anion traces

sulfate, sulfite (as SO42-): ≤0.1%
sulfide (S2-): passes test (limit about 1 ppm)

SMILES string

O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=S

InChI

1S/2Na.H2O3S2.5H2O/c;;1-5(2,3)4;;;;;/h;;(H2,1,2,3,4);5*1H2/q2*+1;;;;;;/p-2

InChI key

PODWXQQNRWNDGD-UHFFFAOYSA-L

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Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
062K0037
049H0268
017H0944
128H0162
124H0193

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C Resgalla et al.
Chemosphere, 89(1), 102-107 (2012-05-26)
Since the development of the TIE (Toxicity Identification and Evaluation) in 1988 it has been assumed that the capacity of EDTA and sodium thiosulfate to complex some metals, and thus remove their toxicity, can be applied to both freshwater and
Brooke Bair et al.
Journal of drugs in dermatology : JDD, 10(9), 1042-1044 (2011-11-05)
Calcinosis cutis is a term used to describe a group of disorders which result in calcium deposits in the skin. These disorders can be separated based on etiology. Sodium thiosulfate has been used to systemically treat calciphylaxis with little to
Melani Sooriyaarachchi et al.
Metallomics : integrated biometal science, 5(3), 197-207 (2013-02-28)
Cis-Platin (CP) is a remarkably effective Pt-based anticancer drug, but it also exhibits severe toxic side-effects, including nephrotoxicity and ototoxicity. Previous studies conducted with mammalian model organisms have clearly demonstrated that the intravenous administration of N-acetyl-L-cysteine (NAC) or sodium thiosulfate
Michael C Reade et al.
Emergency medicine Australasia : EMA, 24(3), 225-238 (2012-06-08)
Cyanide poisoning is uncommon, but generates interest because of the presumed utility of an antidote immediately available in those areas with a high risk of cyanide exposure. As part of its regular review of guidelines, the Australian Resuscitation Council conducted
Melani Sooriyaarachchi et al.
Metallomics : integrated biometal science, 4(9), 960-967 (2012-07-31)
The anticancer drug cis-platin (CP) is widely used to treat patients, but it is also associated with significant side effects, including nephrotoxicity. Given that this metallodrug is intravenously (iv) administered, its biotransformations in the bloodstream are likely to be involved
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