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SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 42 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Sodium metabisulfite (MBS, Sodium disulfite) is an inorganic salt. It is the sodium salt of disulphurous (pyrosulfurous) acid. It is widely used as reducing agent in textile and photography industry. It is commonly added to various foods and wines as preservative.
Application
Sodium disulfite has reducing and anti-septic properties with broad range of applications in pharmaceutical, cosmetic and food industry. It is commonly used as preservative and antioxidant, especially for liquid and semi-solid application. In the food industry it is can help preserving food products and maintaining their fresh appearance.
| Pubchem Sid | 528773147 |
|---|---|
| Sourires canoniques | [O-]S(=O)S(=O)(=O)[O-].[Na+].[Na+] |
| InChIKey | HRZFUMHJMZEROT-UHFFFAOYSA-L |
| INCHI | 1S/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2 |
| Isomères SMILES | [O-]S(=O)S(=O)(=O)[O-].[Na+].[Na+] |
| WGK Allemagne | 1 |
| RTECS | UX8225000 |
| Numéro ONU | 3335 |
| Groupe d'emballage | III |
| Poids moléculaire | 190.11 |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Inorganic compounds |
|---|---|
| Superclass | Mixed metal/non-metal compounds |
| Classe | Alkali metal oxoanionic compounds |
| Subclass | Alkali metal dithionites |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Alkali metal dithionites |
| Alternative Parents | Inorganic sodium salts Inorganic oxides |
| Molecular Framework | Not available |
| Substituents | Alkali metal dithionite - Inorganic sodium salt - Inorganic oxide - Inorganic salt |
| Description | This compound belongs to the class of inorganic compounds known as alkali metal dithionites. These are inorganic compounds in which the largest oxoanion is dithionite, and in which the heaviest atom not in an oxoanion is an alkali metal. |
| External Descriptors | Not available |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Article |
|---|---|---|---|
| Certificate of Analysis | Jul 22, 2024 | S433804 | |
| Certificate of Analysis | Jul 22, 2024 | S433804 | |
| Certificate of Analysis | Jul 22, 2024 | S433804 | |
| Certificate of Analysis | Jul 22, 2024 | S433804 | |
| Certificate of Analysis | Jul 22, 2024 | S433804 | |
| Certificate of Analysis | Oct 10, 2023 | S433804 |
| Sensibilité | Hygroscopic;Air sensitive |
|---|---|
| Point d'ébullition (°C) | 150°C |
| Point de fusion (°C) | >300 °C |
| Poids moléculaire | 190.110 g/mol |
| XLogP3 | |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 6 |
| Rotatable Bond Count | 0 |
| Exact Mass | 189.898 Da |
| Monoisotopic Mass | 189.898 Da |
| Topological Polar Surface Area | 125.000 Ų |
| Heavy Atom Count | 9 |
| Formal Charge | 0 |
| Complexity | 136.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 3 |
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View PharmPure™ grade guide → View JP grade guide → View BP grade guide → View Ph.Eur. grade guide → View NF grade guide →