API reference

Selenious acid

CAS number
7783-00-8
Molecular formula
H2O3Se
Molecular weight
128.99 g/mol
Selenious acid — 2D structure
2D structure (PubChem)

About this molecule

Selenous acid is the principal oxoacid of selenium. It is used in organic synthesis. Selenium is a nonmetal element with the atomic number 34 and the chemical symbol Se. Selenium rarely occurs in its elemental state in nature and is usually found in sulfide ores such as pyrite, partially replacing the sulfur in the ore matrix. It may also be found in silver, copper, lead, and nickel minerals. Though selenium salts are toxic in large amounts, trace amounts of the element are necessary for cellular function in most animals, forming the active center of the enzymes glutathione peroxidase, thioredoxin reductase, and three known deiodinase enzymes. (L620, L736)

Source: Toxin and Toxin Target Database (T3DB), via PubChem.

Identifiers

IUPAC name
selenous acid
InChIKey
MCAHWIHFGHIESP-UHFFFAOYSA-N
SMILES
O[Se](=O)O
PubChem CID
1091

Also known as

SELENIOUS ACID · Selenous acid · Monohydrated selenium dioxide · Selenium dioxide, monohydrated · selenige Saeure · dihydroxidooxidoselenium · Acid, Selenious · Acid, Selenous

Chemical data on this page is drawn from PubChem (National Library of Medicine) and is provided for identification only. Hanpars does not hold stock of every substance listed; availability, grade, documentation and regulatory status are confirmed per enquiry.

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