Selenium dioxide - sublimed grade, for synthesis , CAS No.7446-08-4

CAS: 7446-08-4 Cat. No.: S433473 Formula: SeO2 Molecular Weight: 110.96 EC Number: 231-194-7 PubChem CID: 24007
AVAILABLE TO ORDER
GRADE & PURITY for Synthesis ? Synthesis grade — practical purity for chemical synthesis and preparative work. Use as a cost-effective reagent when analytical purity isn't required. Sublimed grade ? Sublimed grade — purified by sublimation, giving very low non-volatile impurities. Use for electronics and applications needing high chemical purity.
Synonyms
Selenium oxide (SeO2) | SELENIUM OXIDE [MI] | WLN: SE O2 | NCGC00260145-01 | selenium (IV) dioxide | Selenium oxide (1:2) | Selenium oxide [NA2811] [Poison] | Selenium(IV) oxide | Selenonyl | A838139 | BP-21360 | SeO2 | AKOS015855284 | SELENIUM (IV) OXID
Storage
Room temperature
Shipped In
FedEx DG Service
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Size
Germany (EU)
USA*
Price
Qty
5g
S433473-5g
—
7 In stock

€55.45

€64.99
Save €9.55 (14.69%)
50g
S433473-50g
—
1 In stock

€73.67

€86.69
Save €13.02 (15.02%)
250g
S433473-250g
1 In stock
1 In stock

€150.90

€176.93
Save €26.03 (14.71%)
Enter a quantity for the sizes you want to add.
🧪
Why this grade

sublimed grade, for synthesis for Synthesis,Sublimed grade for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature 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 216 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
Selenium oxide (SeO2) | SELENIUM OXIDE [MI] | WLN: SE O2 | NCGC00260145-01 | selenium (IV) dioxide | Selenium oxide (1:2) | Selenium oxide [NA2811] [Poison] | Selenium(IV) oxide | Selenonyl | A838139 | BP-21360 | SeO2 | AKOS015855284 | SELENIUM (IV) OXID
Specifications & Purity
sublimed grade, for synthesis
Storage
Room temperature
Shipped In
FedEx DG Service
Grade
for Synthesis, Sublimed grade
Names and Identifiers
Pubchem Sid
Canonical Smiles
O=[Se]=O
IUPAC Name
selenium dioxide
InChIKey
JPJALAQPGMAKDF-UHFFFAOYSA-N
INCHI
1S/O2Se/c1-3-2
Isomeric SMILES
O=[Se]=O
WGK Germany
2
PubChem CID
24007
UN Number
3283
Packing Group
I
Molecular Weight
110.96

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
SuperclassHomogeneous non-metal compounds
ClassOther non-metal organides
SubclassOther non-metal oxides
Intermediate Tree Nodes Not available
Direct ParentOther non-metal oxides
Alternative Parents Inorganic oxides  
Molecular FrameworkNot available
Substituents Other non-metal oxide - Inorganic oxide
DescriptionThis compound belongs to the class of inorganic compounds known as other non-metal oxides. These are inorganic compounds containing an oxygen atom of an oxidation state of -2, in which the heaviest atom bonded to the oxygen belongs to the class of 'other non-metals'.
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.

7 results found

Lot NumberCertificate TypeDateItem
K2303169Certificate of AnalysisJul 30, 2026 S433473
K2303171Certificate of AnalysisJul 30, 2026 S433473
C2609024Certificate of AnalysisMar 17, 2026 S433473
C2609196Certificate of AnalysisMar 13, 2026 S433473
B2628198Certificate of AnalysisOct 14, 2024 S433473
I2426408Certificate of AnalysisOct 14, 2024 S433473
I2426419Certificate of AnalysisOct 09, 2024 S433473
Chemical and Physical Properties
Solubility1353g/L
x_melt_point_char315°C
Molecular Weight110.970 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count2
Rotatable Bond Count0
Exact Mass111.906 Da
Monoisotopic Mass111.906 Da
Topological Polar Surface Area34.100 Ų
Heavy Atom Count3
Formal Charge0
Complexity18.300
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
FAQs and Articles
Citations of This Product
Solution Calculators
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