Sodium pyrosulfite - ≥93% , CAS No.7681-57-4

CAS: 7681-57-4 Cat. No.: S573431 Fórmula: Na2S2O5 Peso molecular: 190.11 Número CE: 231-673-0
Disponível para encomenda
GRADE & PURITY ≥93%
Synonyms
Sodium metabisulfite|7681-57-4|Sodium pyrosulfite|Sodium disulfite|Disodium pyrosulfite|Sodium metabisulphite|Disulfurous acid, disodium salt|Disodium disulphite|Natrii disulfis|Campden Tablets|Disodium metabisulfite|Disodium disulfite|Natrium pyrosulfit|
Storage
Room temperature,Argon charged
Shipped In
FedEx DG Service
★
Size
Alemanha (EU)
USA*
Price
Qty
500g
S573431-500g
Sob encomenda · 8–12 semanas

11,19€

16,40€
Gravar 5,21 € (31.75%)
Enter a quantity for the sizes you want to add.
🧪
Why this grade

≥93% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature,Argon charged Ships FedEx DG Service Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 42 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Sinónimos
Sodium metabisulfite | 7681-57-4 | Sodium pyrosulfite | Sodium disulfite | Disodium pyrosulfite | Sodium metabisulphite | Disulfurous acid, disodium salt | Disodium disulphite | Natrii disulfis | Campden Tablets | Disodium metabisulfite | Disodium disulfite | Natrium pyrosulfit |
Especificações e pureza
≥93%
Condições de armazenamento de armazenamento
Room temperature,Argon charged
Enviado em
FedEx DG Service
Pureza
≥93%
Nomes e identificadores
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/508814650
Sorrisos canónicos
[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
SMILES isoméricas
[O-]S(=O)S(=O)(=O)[O-].[Na+].[Na+]
WGK Alemanha
1
RTECS
UX8225000
Número UN
3335
Grupo de embalagem
III
Peso molecular
190.11

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomInorganic compounds
SuperclassMixed metal/non-metal compounds
ClasseAlkali metal oxoanionic compounds
SubclassAlkali metal dithionites
Intermediate Tree Nodes Not available
Direct ParentAlkali metal dithionites
Alternative Parents Inorganic sodium salts  Inorganic oxides  
Molecular FrameworkNot available
Substituents Alkali metal dithionite - Inorganic sodium salt - Inorganic oxide - Inorganic salt
DescriçãoThis 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
Estrutura 3D
Modelo de Estrutura Química Interativa





Mecanismos de ação
Certificados(CoA,COO,BSE/TSE e Mapa de Análise)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

10 results found

Lot NumberCertificate TypeDataItem
K2503136Certificate of AnalysisNov 10, 2025 S573431
J2520426Certificate of AnalysisOct 24, 2025 S573431
J2520734Certificate of AnalysisOct 24, 2025 S573431
L2417437Certificate of AnalysisDec 28, 2024 S573431
L2417436Certificate of AnalysisDec 20, 2024 S573431
C2327280Certificate of AnalysisApr 08, 2023 S573431
C2327282Certificate of AnalysisApr 08, 2023 S573431
C2327281Certificate of AnalysisApr 04, 2023 S573431
C2327283Certificate of AnalysisApr 04, 2023 S573431
K2521103Certificate of AnalysisApr 04, 2023 S573431
Propriedades químicas e físicas
SolubilidadeFreely soluble in water, glycerol. Slightly soluble in alcohol
SensibilidadeSensitive to humidity and air
Ponto de ebulição (°C)150°C
Ponto de fusão (°C)>300 °C
Peso molecular190.110 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count6
Rotatable Bond Count0
Exact Mass189.898 Da
Monoisotopic Mass189.898 Da
Topological Polar Surface Area125.000 Ų
Heavy Atom Count9
Formal Charge0
Complexity136.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count3
FAQs e artigos
Radical Initiator Selection Guide
A Practical Guide to Fragrance Compositions: Turning a Black-Box Formula into an Engineerable System—Compatibility, Stability, Controlled Release, Traceability, and Selection
PAS Staining (Periodic Acid–Schiff, PAS) Standard Operating Procedure (SOP)
Plant Omics Panorama: Workflow Frameworks and Multi-Omics Integration from Genomics to Transcriptomics, Proteomics, and Metabolomics
Physicochemical Properties of Diphenylamine, Analytical Applications, and a Review of Its DNA Colorimetric Reaction
Alginate : An Overview of Extraction and Purification Processes, Quality Identification, and Multidomain Applications
Glutaraldehyde-mediated Microbial Inactivation: Chemical Mechanisms, Determinants, and Key Validation Considerations
Adding a Temperature-Triggered Switch to NCO: How Blocked Isocyanates Affect the Storage, Curing, and Film Performance of 1K Baking Coatings
Structural and Performance Design of Acrylic Resins for Coatings: Monomer Composition, Key Parameters, and Film Formation/Curing Mechanisms
PVAc, VAE, and Vinyl Acetate-Based Emulsions: Film-Forming Logic and Performance Boundaries in Architectural Coatings
What Is an Etchant? Etching Mechanisms for Revealing Metallographic Microstructures, Selection Methods, and Applications of Related Wet-Etching Reagents
One-Pot Deaminative Cyanation of Arylamines Mediated by Nitrate Reduction: The ORT Pathway and Kinetic Matching of Tandem Reaction Steps
How Arbutin Regulates Melanin Production: α/β Anomeric Configuration and Tyrosinase Action
Citations of This Product
Calculadoras de soluções
Revisões

Avaliações dos Clientes

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