Methaneseleninic acid - ≥95% , CAS No.28274-57-9

CAS: 28274-57-9 Cat. No.: M467225 Molecular Weight: 127.00 EC Number: 608-183-4
AVAILABLE TO ORDER
GRADE & PURITY ≥95%
Synonyms
NSC-243621 | 9900C6V162 | methylseleninate | C18902 | DTXSID9040550 | METHYLHYDROXY SELENOXIDE | Methyl seleninic acid | UNII-9900C6V162 | J1.001.675D | NSC-244776 | SCHEMBL772883 | AKOS025296197 | Methylselenic acid | CHEBI:77012 | Methylseleninic acid |
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
M467225-250mg
2
$91.90
1g
M467225-1g
2
$252.90
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

Store at -20°C Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

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Quality documents

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

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Methaneseleninic acid is an oxidizing agent useful in organic synthesis.It is formed as major product during the oxidations of γ-glutamyl-Se-methylselenocysteine and Se-methylselenocysteine.
Purpose
Methaneseleninic acid may be employed as a ligand in the preparation of lanthanide complexes. It may also be used in the synthesis of a 12-membered macrocycle [(p-MeO-C6H4)2Te(μ-O)-(μ-MeSeO2)(μ4-Cl)]2 by reacting with bis(p-methoxyphenyl)tellurium dichloride.

Specifications

Synonyms
NSC-243621 | 9900C6V162 | methylseleninate | C18902 | DTXSID9040550 | METHYLHYDROXY SELENOXIDE | Methyl seleninic acid | UNII-9900C6V162 | J1.001.675D | NSC-244776 | SCHEMBL772883 | AKOS025296197 | Methylselenic acid | CHEBI:77012 | Methylseleninic acid |
Specifications & Purity
≥95%
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥95%
Names and Identifiers
Canonical SmilesC[Se](=O)O
IUPAC Namemethaneseleninic acid
InChIKeyUEQANLFPOFICBH-UHFFFAOYSA-N
INCHI1S/CH4O2Se/c1-4(2)3/h1H3,(H,2,3)
Isomeric SMILES C[Se](=O)O
WGK Germany 3
Molecular Weight 127.00
Reaxy-Rn 1734752
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1734752&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
ClassSeleninic acids and derivatives
SubclassNot available
Intermediate Tree Nodes Not available
Direct ParentSeleninic acids and derivatives
Alternative Parents Selenenic acids  Organoselenium compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAliphatic acyclic compounds
Substituents Seleninic acid or derivatives - Selenenic acid - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organoselenium compound - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as seleninic acids and derivatives. These are compounds containing a seleninic acid moiety, with the general structure RSe(=O)OH.
External Descriptors one-carbon compound - organoselenium compound
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
Calu-1 (518 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CCRF-CEM (65223 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HT-29 (80576 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
K562 (73714 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
MCF7 (126967 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
PANC-1 (6144 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
PC-3 (62116 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
184B5 (172 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
Plasmodium falciparum (966862 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
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.

2 results found

Lot NumberCertificate TypeDateItem
K2510505Certificate of AnalysisSep 09, 2025 M467225
K2510506Certificate of AnalysisSep 09, 2025 M467225
Chemical and Physical Properties
SensitivityMoisture sensitive
Melt Point(°C)128-132 °C (lit.)
Molecular Weight127.010 g/mol
XLogP3
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count2
Rotatable Bond Count0
Exact Mass127.938 Da
Monoisotopic Mass127.938 Da
Topological Polar Surface Area37.300 Ų
Heavy Atom Count4
Formal Charge0
Complexity33.000
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 Count1
Solution Calculators
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