PHR1434

Sodium Metabisulfite

Pharmaceutical Secondary Standard; Certified Reference Material

• Synonym(s): Sodium metabisulfite, Sodium disulfite, Sodium pyrosulfite
• Linear Formula: Na₂S₂O₅
• CAS Number: 7681-57-4
• Molecular Weight: 190.11
• EC Number: 231-673-0
• MDL number: MFCD00167602
• UNSPSC Code: 41116107
• PubChem Substance ID: 329822598
• NACRES: NA.24

Properties

• grade: certified reference material; pharmaceutical secondary standard
• Quality Level: 300
• Agency: traceable to USP 1614396
• API family: sodium metabisulfite
• CofA: current certificate can be downloaded
• technique(s): HPLC: suitable; gas chromatography (GC): suitable
• mp: >300 °C (lit.)
• application(s): pharmaceutical (small molecule)
• format: neat
• storage temp.: 2-30°C
• SMILES string: [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O
• InChI: 1S/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
• InChI key: HRZFUMHJMZEROT-UHFFFAOYSA-L

Description

General description

Certified pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to in-house working standards. Sodium Metabisulfite is a sulfiting agent, widely employed as antioxidants, preservatives and browning inhibitors in pharmaceutical formulations and a variety of food and beverages.

Application

Sodium Metabisulfite may be used as a pharmaceutical reference standard for the quantification of the analyte in pharmaceutical formulations using amperometric technique.

These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.

Analysis Note

These secondary standards offer multi-traceability to the USP, EP and BP primary standards, where they are available.

Other Notes

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.

Footnote

To see an example of a Certificate of Analysis for this material enter LRAC2953 in the slot below. This is an example certificate only and may not be the lot that you receive.

Safety Information

• Pictograms: GHS05,GHS07
• Signal Word: Danger
• Hazard Statements: H302,H318
• Precautionary Statements: P264 - P270 - P280 - P301 + P312 - P305 + P351 + P338 - P501
• Hazard Classifications: Acute Tox. 4 Oral - Eye Dam. 1
• Supplementary Hazards: EUH031
• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable