Sodium pyrosulfite - AR, ≥96% , CAS No.7681-57-4

CAS: 7681-57-4 Cat. No.: S112439 Fórmula: Na2S2O5 Peso molecular: 190.11 Número CE: 231-673-0
Disponível para encomenda
GRADE & PURITY AR ? Analytical Reagent grade — high-purity chemicals meeting strict assay limits for lab analysis. Use when accuracy matters and trace impurities could skew results. ≥96%
Synonyms
Sodium metabisulfite, SO2 58.5% | Sodium bisulfite anhydrous | Sodium metabisulfite | sodium meta-bisulfite | Sodium pyrosulfite | UNII-4VON5FNS3C | EC 231-673-0 | SODIUM METABISULFITE [WHO-DD] | Sodium metabisulphite | Disodium metabisulfite | DISODIUM P
Storage
Room temperature,Argon charged,Desiccated
Shipped In
FedEx DG Service
★
Size
Alemanha (EU)
USA*
Price
Qty
100g
S112439-100g
Sob encomenda · 8–12 semanas
8,59€
500g
S112439-500g
—
2 Em stock

15,53€

19,87€
Gravar 4,34 € (21.83%)
12×500g
S112439-12×500g
Sob encomenda · 8–12 semanas

124,00€

177,80€
Gravar 53,80 € (30.26%)
Enter a quantity for the sizes you want to add.
🧪
Why this grade

AR, ≥96% AR for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature,Argon charged,Desiccated 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, SO2 58.5% | Sodium bisulfite anhydrous | Sodium metabisulfite | sodium meta-bisulfite | Sodium pyrosulfite | UNII-4VON5FNS3C | EC 231-673-0 | SODIUM METABISULFITE [WHO-DD] | Sodium metabisulphite | Disodium metabisulfite | DISODIUM P
Especificações e pureza
AR, ≥96%
Condições de armazenamento de armazenamento
Room temperature,Argon charged,Desiccated
Enviado em
FedEx DG Service
Grau
AR
Pureza
≥96%
Nomes e identificadores
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/508814652
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.

43 results found

Lot NumberCertificate TypeDataItem
E2614355Certificate of AnalysisApr 25, 2026 S112439
E2614354Certificate of AnalysisApr 25, 2026 S112439
K2511627Certificate of AnalysisNov 20, 2025 S112439
K2511602Certificate of AnalysisNov 20, 2025 S112439
K2511589Certificate of AnalysisNov 20, 2025 S112439
K2511581Certificate of AnalysisNov 20, 2025 S112439
J2514754Certificate of AnalysisOct 20, 2025 S112439
J2514753Certificate of AnalysisOct 20, 2025 S112439
F2512582Certificate of AnalysisMay 26, 2025 S112439
F2512581Certificate of AnalysisMay 26, 2025 S112439
F2512580Certificate of AnalysisMay 26, 2025 S112439
L2418812Certificate of AnalysisDec 02, 2024 S112439
L2418810Certificate of AnalysisDec 02, 2024 S112439
L2418809Certificate of AnalysisDec 02, 2024 S112439
K2405667Certificate of AnalysisOct 28, 2024 S112439
K2405666Certificate of AnalysisOct 28, 2024 S112439
K2405668Certificate of AnalysisOct 28, 2024 S112439
I2423538Certificate of AnalysisJul 12, 2024 S112439
G2430516Certificate of AnalysisJul 09, 2024 S112439
G2430531Certificate of AnalysisJul 09, 2024 S112439
G2430519Certificate of AnalysisJul 09, 2024 S112439
E2420377Certificate of AnalysisApr 28, 2024 S112439
E2420369Certificate of AnalysisApr 28, 2024 S112439
E2420368Certificate of AnalysisApr 28, 2024 S112439
D2423296Certificate of AnalysisMar 23, 2024 S112439
D2423297Certificate of AnalysisMar 23, 2024 S112439
D2415146Certificate of AnalysisMar 23, 2024 S112439
C2401504Certificate of AnalysisMar 12, 2024 S112439
C2401505Certificate of AnalysisMar 12, 2024 S112439
B2426677Certificate of AnalysisMar 04, 2024 S112439
B2426666Certificate of AnalysisMar 04, 2024 S112439
B2426672Certificate of AnalysisFeb 29, 2024 S112439
B2426671Certificate of AnalysisFeb 29, 2024 S112439
B2426673Certificate of AnalysisFeb 29, 2024 S112439
H2328499Certificate of AnalysisAug 08, 2023 S112439
H2328595Certificate of AnalysisAug 08, 2023 S112439
H2328498Certificate of AnalysisAug 08, 2023 S112439
E2325884Certificate of AnalysisMay 05, 2023 S112439
E2325878Certificate of AnalysisMay 05, 2023 S112439
E2325887Certificate of AnalysisMay 05, 2023 S112439
D2304256Certificate of AnalysisMar 17, 2023 S112439
D2304258Certificate of AnalysisMar 17, 2023 S112439
D2304263Certificate of AnalysisMar 17, 2023 S112439
Propriedades químicas e físicas
Solubilidadesoluble 650 g/L at 20 °C
SensibilidadeMoisture sensitive,Air sensitive
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
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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
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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

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