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1.06514

Sodium thiosulfate pentahydrate

Name: Sodium thiosulfate pentahydrate
Brand: MM

crystalline, EMPROVE^® ESSENTIAL, Ph. Eur., BP, JP, USP

Synonym(s):

Sodium thiosulfate pentahydrate, Antichlor

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About This Item

Empirical Formula (Hill Notation):

Na₂O₃S₂ · 5H₂O

CAS Number:

10102-17-7

Molecular Weight:

248.18

UNSPSC Code:

12352302

EC Index Number:

231-867-5

MDL number:

MFCD00149186

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Properties

Quality Level

500

agency

BP, JP, Ph. Eur., USP

product line

EMPROVE^® ESSENTIAL

form

crystalline, solid

pH

6.0-7.5 (20 °C, 100 g/L in H₂O)

mp

48 °C

density

1.74 g/cm³ at 20 °C

application(s)

liquid formulation
pharmaceutical
semi-solid formulation
solid formulation

storage temp.

2-30°C

SMILES string

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

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

Description

General description

Finding the right excipient that matches your needs as well as regulatory demands can be a complicated challenge in formulation. With our application know-how and regulatory expertise, we support you in every step of development, scale-up, and production.
As part of our Emprove^® Program, our raw materials are offered with extensive documentation facilitating compliance of your pharma and biopharma product, full supply chain transparency and risk mitigation. Our SAFC^® portfolio of high-quality products for biopharmaceutical and pharmaceutical formulation and production withstands strict quality control procedures and is produced according to applicable cGMP guidelines.

Application

Sodium thiosulfate pentahydrate is used as an antioxidant and chelating agent in pharmaceutical formulations and cosmetics.

Legal Information

Emprove is a registered trademark of Merck KGaA, Darmstadt, Germany

SAFC is a registered trademark of Merck KGaA, Darmstadt, Germany

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Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c