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10 G
R$476.00
50 G
R$819.00
250 G
R$2,949.00
About This Item
Linear Formula:
H2SeO3
CAS Number:
Molecular Weight:
128.97
EC Number:
MDL number:
UNSPSC Code:
12352301
PubChem Substance ID:
NACRES:
NA.22
Recommended Products
Quality Level
Assay
98%
form
solid
mp
70 °C (dec.) (lit.)
density
3.004 g/mL at 25 °C (lit.)
SMILES string
O[Se](O)=O
InChI
1S/H2O3Se/c1-4(2)3/h(H2,1,2,3)
InChI key
MCAHWIHFGHIESP-UHFFFAOYSA-N
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Application
Selenous acid can be used as a reagent to synthesize:
- α-Ketoacectals by reacting with acetophenones and triethylorthoformate in the presence of boron trifluoride etherate as a catalyst[1].
- 4-Formyl-7-methylcoumarin using 4,7-dimethylcoumarin in the presence of xylene as a solvent[2].
- Selenium substituted quinoxaline derivatives from 2,3-dichloro quionoxaline.
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2
Storage Class Code
6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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A simple one-vial-method was developed for the quantitative determination of sphingomyelinase activity in human leukocytes and urine, using [14C-methyl] sphingomyelin. The measured activities of healthy control persons show a higher scatter in (n=50) urine (1.2 +/- 0.5 nmol/h . ml
One-pot synthesis of alpha-ketoacetals from aryl methyl ketones in the presence of selenous acid catalyzed by boron trifluoride etherate
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[Reaction: see text]. Several novel organoselenium and tellurium compounds were prepared and evaluated as mimetics of the selenoenzyme glutathione peroxidase, which protects cells from oxidative stress by reducing harmful peroxides with the thiol glutathione. The compounds were tested for catalytic
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