Sodium pyrosulfite - ≥95% , CAS No.7681-57-4

CAS: 7681-57-4 Cat. No.: S579149 Fórmula: Na2S2O5 Peso molecular: 190.11 Número EC: 231-673-0
Disponible para pedir
GRADE & PURITY ≥95%
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
USA
Alemania (EU)*
Price
Qty
500g
S579149-500g
2 Disponible
—

15,90US$

20,90US$
Guardar 5,00 US$ (23.92%)
Enter a quantity for the sizes you want to add.
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Why this grade

≥95% 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 |
Especificaciones y pureza
≥95%
Condiciones de almacenamiento de almacenamiento
Room temperature,Argon charged
Enviado en
FedEx DG Service
Pureza
≥95%
Nombres e identificadores
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/504759786
Sonrisas canónicas
[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
Isómeros SMILES
[O-]S(=O)S(=O)(=O)[O-].[Na+].[Na+]
WGK Alemania
1
RTECS
UX8225000
Número ONU
3335
Grupo de embalaje
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
ClaseAlkali 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
DescripciónThis 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
Estructura 3D
Modelo de Estructura Química Interactiva





Mecanismos de acción
Certificados (CoA, COO, BSE/TSE y tabla de análisis)
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.

21 results found

Lot NumberCertificate TypeFechaArticulo
D2517040Certificate of AnalysisApr 29, 2025 S579149
D2517043Certificate of AnalysisApr 29, 2025 S579149
D2517041Certificate of AnalysisApr 28, 2025 S579149
D2517042Certificate of AnalysisApr 25, 2025 S579149
C2408583Certificate of AnalysisMar 18, 2024 S579149
C2408585Certificate of AnalysisMar 18, 2024 S579149
C2408586Certificate of AnalysisMar 18, 2024 S579149
C2408584Certificate of AnalysisJul 10, 2023 S579149
F2301698Certificate of AnalysisJun 26, 2023 S579149
F2306608Certificate of AnalysisJun 26, 2023 S579149
F2306799Certificate of AnalysisJun 26, 2023 S579149
F2306800Certificate of AnalysisJun 26, 2023 S579149
D2314382Certificate of AnalysisApr 22, 2023 S579149
D2314380Certificate of AnalysisApr 22, 2023 S579149
D2314374Certificate of AnalysisApr 22, 2023 S579149
D2608079Certificate of AnalysisApr 22, 2023 S579149
E2526138Certificate of AnalysisApr 22, 2023 S579149
F2615083Certificate of AnalysisApr 22, 2023 S579149
D2314383Certificate of AnalysisApr 19, 2023 S579149
D2314381Certificate of AnalysisApr 19, 2023 S579149
F2512072Certificate of AnalysisApr 19, 2023 S579149
Propiedades químicas y físicas
SolubilidadFreely soluble in water, glycerol. Slightly soluble in alcohol
SensibilidadSensitive to humidity and air
Punto de ebullición (°C)150°C
Punto de fusión (°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
Preguntas frecuentes y artículos
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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 soluciones
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