1.06514

Sodium thiosulfate pentahydrate

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

• Synonym(s): Sodium thiosulfate pentahydrate, Antichlor
• 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

Properties

• Quality Segment: 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

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable