Eaton′s Reagent - P2O5 ca 7.5% w/w , CAS No.39394-84-8

CAS: 39394-84-8 Cat. No.: E140657 EC Number: 679-375-3
AVAILABLE TO ORDER
GRADE & PURITY P2O5 ca 7.5% w/w
Synonyms
Methanesulfonic acid--3-oxo-1lambda~5~,3lambda~5~-diphosphoxane-1,1,3-trione (1/1) | D78003 | methanesulfonic acid compound with phosphenic anhydride (1:1) | AKOS027469870 | Eaton's Reagent | Phosphorus pentoxide methanesulfonic acid | eaton'S | MFCD00070
Storage
Room temperature,Argon charged,Desiccated,Cool
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
25ml
E140657-25ml
2

$11.90

$13.90
Save $2.00 (14.39%)
100ml
E140657-100ml
3
$39.90
500ml
E140657-500ml
2
$119.90
Enter a quantity for the sizes you want to add.
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Why this grade

P2O5 ca 7.5% w/w for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature,Argon charged,Desiccated,Cool Ships Normal 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 16 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
Methanesulfonic acid--3-oxo-1lambda~5~, 3lambda~5~-diphosphoxane-1, 1, 3-trione (1/1) | D78003 | methanesulfonic acid compound with phosphenic anhydride (1:1) | AKOS027469870 | Eaton's Reagent | Phosphorus pentoxide methanesulfonic acid | eaton'S | MFCD00070
Specifications & Purity
P2O5 ca 7.5% w/w
Storage
Room temperature, Argon charged, Desiccated, Cool
Shipped In
Normal
Names and Identifiers
Canonical SmilesCS(=O)(=O)O.O=P(=O)OP(=O)=O
InChIKeyJHNLZOVBAQWGQU-UHFFFAOYSA-N
INCHI1S/CH4O3S.O5P2/c1-5(2,3)4;1-6(2)5-7(3)4/h1H3,(H,2,3,4);
Isomeric SMILES CS(=O)(=O)O.O=P(=O)OP(=O)=O
WGK Germany 1
UN Number 1760
Packing Group II
Reaxy-Rn 20559020
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=20559020&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

KingdomOrganic compounds
SuperclassOrganic acids and derivatives
ClassOrganic sulfonic acids and derivatives
SubclassOrganosulfonic acids and derivatives
Intermediate Tree Nodes Not available
Direct ParentOrganosulfonic acids
Alternative Parents Sulfonyls  Methanesulfonates  Alkanesulfonic acids  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAliphatic acyclic compounds
Substituents Alkanesulfonic acid - Sulfonyl - Organosulfonic acid - Methanesulfonate - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organosulfur compound - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as organosulfonic acids. These are compounds containing the sulfonic acid group, which has the general structure RS(=O)2OH (R is not a hydrogen atom).
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.

16 results found

Lot NumberCertificate TypeDateItem
D2620415Certificate of AnalysisApr 08, 2026 E140657
D2620416Certificate of AnalysisApr 08, 2026 E140657
D2620417Certificate of AnalysisApr 08, 2026 E140657
A2210211Certificate of AnalysisOct 13, 2025 E140657
A2210212Certificate of AnalysisOct 13, 2025 E140657
A2210213Certificate of AnalysisOct 13, 2025 E140657
D2122241Certificate of AnalysisFeb 07, 2025 E140657
D2122243Certificate of AnalysisFeb 07, 2025 E140657
D2007021Certificate of AnalysisJan 11, 2024 E140657
G1911063Certificate of AnalysisMay 09, 2023 E140657
B2327510Certificate of AnalysisNov 10, 2022 E140657
B2327657Certificate of AnalysisNov 10, 2022 E140657
B2327660Certificate of AnalysisNov 10, 2022 E140657
B2327662Certificate of AnalysisNov 10, 2022 E140657
B2513101Certificate of AnalysisNov 10, 2022 E140657
I2504094Certificate of AnalysisNov 10, 2022 E140657

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Chemical and Physical Properties
SolubilityDecomposes in water.
SensitivityMoisture Sensitive.
Refractive Index1.435
Flash Point(°F)230°F
Flash Point(°C)>110°C
Boil Point(°C)122 °C/1 mmHg
Molecular Weight238.050 g/mol
XLogP3
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count8
Rotatable Bond Count0
Exact Mass237.91 Da
Monoisotopic Mass237.91 Da
Topological Polar Surface Area140.000 Ų
Heavy Atom Count12
Formal Charge0
Complexity216.000
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 Count2
Citations of This Product
References
1. Hui Yao, Qiaoqin Fu, Yuchen Zhang, Ying Wan, Qing Min.  (2023)  Strong, elastic and degradation-tolerated hydrogels composed of chitosan, silk fibroin and bioglass nanoparticles with factor-bestowed activity for bone tissue engineering.  INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,      [PMID:37657578] [10.1016/j.ijbiomac.2023.126619]
2. Yingying Huang, Lihui Tan, Meng Chen, Yanpeng Jiao, Jinhuan Tian, Lihua Li, Changren Zhou, Lu Lu.  (2022)  Laccase immobilization on hierarchical micro/nano porous chitin/graphene oxide beads prepared via Pickering emulsion template for dye decolorization.  COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,      [PMID:] [10.1016/j.colsurfa.2022.130858]
3. Yuhong Huang, Xiaowei Li, Linlin Chen, Guiling Luo, Duanjian Tao, Jing Sun, Zhenjiang Qiu, Yanhong Chao, Wenshuai Zhu.  (2022)  Synthesis of a magnetic crown ether ion imprinted polymer material for the selective adsorption of lithium.  NEW JOURNAL OF CHEMISTRY,  47  (6): (3134-3139).  [PMID:] [10.1039/D2NJ05377B]
4. Jianwei Zhao, Yuxin Wang, Dezheng Guan, Zhou Fu, Qi Zhang, Liang Guo, Yingjie Sun, Qiuzhuo Zhang, Dongbo Wang.  (2022)  Calcium hypochlorite-coupled aged refuse promotes hydrogen production from sludge anaerobic fermentation.  BIORESOURCE TECHNOLOGY,      [PMID:36574889] [10.1016/j.biortech.2022.128534]
5. Kaibo Yu, Jing Xu, Lei Zhou, Liqiang Zou, Wei Liu.  (2021)  Effect of Chitosan Coatings with Cinnamon Essential Oil on Postharvest Quality of Mangoes.  Foods,  10  (12): (3003).  [PMID:34945553] [10.3390/foods10123003]
6. Zhiquan Chen, Juncheng Jiang, Yuan Yu, Gang Chen, Tingting Chen, Qingwu Zhang.  (2020)  Layer-by-layer assembled bagasse to enhance the fire safety of epoxy resin: A renewable environmental friendly flame retardant.  JOURNAL OF APPLIED POLYMER SCIENCE,  138  (11): (50032).  [PMID:] [10.1002/app.50032]
7. Qiufeng Lin, Feilong Dong, Yunxia Miao, Cong Li, Weicheng Fei.  (2019)  Removal of disinfection by-products and their precursors during drinking water treatment processes.  WATER ENVIRONMENT RESEARCH,  92  (5): (698-705).  [PMID:31643120] [10.1002/wer.1263]
8. Qing Min, Xiaofeng Yu, Jiaoyan Liu, Jiliang Wu, Ying Wan.  (2019)  Chitosan-Based Hydrogels Embedded with Hyaluronic Acid Complex Nanoparticles for Controlled Delivery of Bone Morphogenetic Protein-2.  Pharmaceutics,  11  (5): (214).  [PMID:31060227] [10.3390/pharmaceutics11050214]
9. Hao-Hua Deng, Xiu-Ling Lin, Yin-Huan Liu, Ke-Lin Li, Qiong-Qiong Zhuang, Hua-Ping Peng, Ai-Lin Liu, Xing-Hua Xia, Wei Chen.  (2017)  Chitosan-stabilized platinum nanoparticles as effective oxidase mimics for colorimetric detection of acid phosphatase.  Nanoscale,  (29): (10292-10300).  [PMID:28702672] [10.1039/C7NR03399K]
10. Jiao-Jiao Yuan, Frank G.F. Qin, Jun-Ling Tu, Bing Li.  (2017)  Preparation, Characterization, and Antioxidant Activity Evaluation of Liposomes Containing Water-Soluble Hydroxytyrosol from Olive.  MOLECULES,  22  (6): (870).  [PMID:28538693] [10.3390/molecules22060870]
11. Jiahao Xu, Dongzhe Zou, Enyu Dong, Xingyu Jiang, Shuo Xu, Yusheng Xiao, Wensheng Gong, Yini Xu, Zenan Zeng, Kefurong Deng, Yachao Li, Xianghui Xu.  (2025)  Biomedical Engineering on Smart Polymeric Nanoparticle–Hydrogel Platforms for Efficient Antibiotic Delivery against Bacterial-Infected Wounds.  ACS Biomaterials Science & Engineering,      [PMID:39977696] [10.1021/acsbiomaterials.4c02045]
12. Feng L., Yang J., Wang J., Meng S., Yu H., Han L., Zhong W..  (2024)  Groundbreaking Benzofused Hybrid Drug: Light-Responsive Reversible Absorption and Release in Hydrogel for Treating Kashin–Beck Disease.  RUSSIAN JOURNAL OF GENERAL CHEMISTRY,  94  (9): (2356-2364).  [PMID:] [10.1134/S1070363224090160]
13. Kaiyang Zhu, Ji Ma, Hafiz Muhammad Mubeen, Ting Zhang, Hongjie Lei, Wenge Zhao, Huaide Xu, Mei Li.  (2025)  Preparation, structural characterization and in vitro digestibility mechanism of walnut oil body emulsion gels based on crosslinking of edible polysaccharide and vanillin.  FOOD HYDROCOLLOIDS,      [PMID:] [10.1016/j.foodhyd.2025.111167]
14. Kaiyuan Zheng, Lili Wang, Xiaofan Zhang, Chengwei Hou, Aiqi Su, Shoukang Hu, Ming Yue, Xiaobiao Shan.  (2025)  The influence of functional groups on the triboelectric properties of chitosan derivatives and the electron transfer mechanism of insulators.  Nano Energy,      [PMID:] [10.1016/j.nanoen.2025.110709]
15. Jiawei Hu, Shaogang Hu, Jing Zhang, Xiangqian Xu, Jie Wu.  (2025)  Thermal hydrolysis assists calcium hypochlorite pretreatment to enhance anaerobic digestion performance of waste activated sludge.  Journal of Water Process Engineering,      [PMID:] [10.1016/j.jwpe.2025.107094]
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