Potassium persulfate - ≥99% , CAS No.7727-21-1

CAS: 7727-21-1 Cat. No.: P292964 Formula: K2S2O8 Molecular Weight: 270.32 EC Number: 231-781-8
AVAILABLE TO ORDER
GRADE & PURITY ≥99%
Synonyms
Potassium peroxydisulfate | Potassium peroxodisulfate | Anthion | KPS
Storage
Room temperature,Desiccated
Shipped In
FedEx DG Service
★
Size
USA
Germany (EU)*
Price
Qty
100g
P292964-100g
6 In stock
—
$9.90
500g
P292964-500g
7 In stock
7 In stock

$21.90

$24.90
Save $3.00 (12.05%)
12×500g
P292964-12×500g
Made to order · 8–12 wks

$179.90

$268.90
Save $89.00 (33.10%)
Enter a quantity for the sizes you want to add.
🧪
Why this grade

≥99% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature,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 1771 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
Potassium peroxydisulfate | Potassium peroxodisulfate | Anthion | KPS
Specifications & Purity
≥99%
Storage
Room temperature,Desiccated
Shipped In
FedEx DG Service
Purity
≥99%
Names and Identifiers
Pubchem Sid508816627
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/508816627
Canonical Smiles[O-]S(=O)(=O)OOS(=O)(=O)[O-].[K+].[K+]
IUPAC Namedipotassium;sulfonatooxy sulfate
InChIKeyUSHAGKDGDHPEEY-UHFFFAOYSA-L
INCHI1S/2K.H2O8S2/c;;1-9(2,3)7-8-10(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2
Isomeric SMILES [O-]S(=O)(=O)OOS(=O)(=O)[O-].[K+].[K+]
WGK Germany 1
RTECS SE0400000
UN Number 1492
Packing Group III
Molecular Weight 270.32
Reaxy-Rn 11343689
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=11343689&ln=

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
ClassAlkali metal oxoanionic compounds
SubclassAlkali metal peroxodisulfates
Intermediate Tree Nodes Not available
Direct ParentAlkali metal peroxodisulfates
Alternative Parents Inorganic salts  Inorganic oxides  
Molecular FrameworkNot available
Substituents Alkali metal peroxodisulfate - Inorganic oxide - Inorganic salt
DescriptionThis compound belongs to the class of inorganic compounds known as alkali metal peroxodisulfates. These are inorganic compounds in which the largest oxoanion is peroxodisulfate, and in which the heaviest atom not in an oxoanion is an alkali metal.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
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.

53 results found

Lot NumberCertificate TypeDateItem
I2601381Certificate of AnalysisAug 27, 2026 P292964
I2601380Certificate of AnalysisAug 27, 2026 P292964
G2610800Certificate of AnalysisJul 07, 2026 P292964
G2610801Certificate of AnalysisJul 07, 2026 P292964
G2610802Certificate of AnalysisJul 07, 2026 P292964
F2624526Certificate of AnalysisJun 12, 2026 P292964
F2624528Certificate of AnalysisJun 12, 2026 P292964
G2602437Certificate of AnalysisJun 12, 2026 P292964
G2602438Certificate of AnalysisJun 12, 2026 P292964
C2606455Certificate of AnalysisFeb 27, 2026 P292964
D2616527Certificate of AnalysisFeb 27, 2026 P292964
D2616526Certificate of AnalysisFeb 27, 2026 P292964
C2606454Certificate of AnalysisFeb 27, 2026 P292964
A2623287Certificate of AnalysisJan 13, 2026 P292964
A2623286Certificate of AnalysisJan 13, 2026 P292964
E2618165Certificate of AnalysisJan 13, 2026 P292964
I2504583Certificate of AnalysisSep 19, 2025 P292964
I2504683Certificate of AnalysisSep 19, 2025 P292964
H2526555Certificate of AnalysisAug 29, 2025 P292964
H2526553Certificate of AnalysisAug 29, 2025 P292964
H2526123Certificate of AnalysisAug 22, 2025 P292964
H2526124Certificate of AnalysisAug 22, 2025 P292964
F2520008Certificate of AnalysisJun 13, 2025 P292964
L2505103Certificate of AnalysisJun 13, 2025 P292964
K2511086Certificate of AnalysisJun 13, 2025 P292964
F2518669Certificate of AnalysisJun 13, 2025 P292964
F2518670Certificate of AnalysisJun 13, 2025 P292964
E2529206Certificate of AnalysisMay 15, 2025 P292964
G2502187Certificate of AnalysisMay 15, 2025 P292964
E2520272Certificate of AnalysisMay 15, 2025 P292964
E2520271Certificate of AnalysisMay 15, 2025 P292964
D2515468Certificate of AnalysisApr 24, 2025 P292964
D2515469Certificate of AnalysisApr 24, 2025 P292964
C2513619Certificate of AnalysisMar 21, 2025 P292964
C2513673Certificate of AnalysisMar 21, 2025 P292964
C2507524Certificate of AnalysisMar 12, 2025 P292964
B2512363Certificate of AnalysisFeb 15, 2025 P292964
B2512369Certificate of AnalysisFeb 15, 2025 P292964
B2512378Certificate of AnalysisFeb 15, 2025 P292964
L2409542Certificate of AnalysisDec 02, 2024 P292964
I2419628Certificate of AnalysisAug 31, 2024 P292964
A2521031Certificate of AnalysisJul 04, 2024 P292964
K2426693Certificate of AnalysisJul 04, 2024 P292964
G2415556Certificate of AnalysisMay 07, 2024 P292964
E2413478Certificate of AnalysisMay 07, 2024 P292964
A2408602Certificate of AnalysisDec 22, 2023 P292964
L2306290Certificate of AnalysisDec 15, 2023 P292964
J2310156Certificate of AnalysisSep 15, 2023 P292964
G2315298Certificate of AnalysisJun 10, 2023 P292964
D2328144Certificate of AnalysisMay 15, 2023 P292964
C23031162Certificate of AnalysisFeb 14, 2023 P292964
L2209914Certificate of AnalysisNov 01, 2022 P292964
G2213374Certificate of AnalysisJun 15, 2022 P292964
Chemical and Physical Properties
SensitivityMoisture sensitive
Melt Point(°C)100 °C (decomposition)
Molecular Weight270.330 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count8
Rotatable Bond Count1
Exact Mass269.831 Da
Monoisotopic Mass269.831 Da
Topological Polar Surface Area150.000 Ų
Heavy Atom Count12
Formal Charge0
Complexity206.000
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
Documents & Articles
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Experimental Judgment and Condition Selection for Visible-Light Catalysis in Organic Synthesis
Reaction Selection in Small-Molecule Synthesis: From Transformation-Type Assessment to Experimental Route Screening
Experimental Selection Logic for Transition-Metal-Catalyzed C–H Functionalization: When It Is Worth Pursuing and How to Assess Site Selectivity and Conditions
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Citations of This Product
Solution Calculators
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