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211176

Sigma-Aldrich

Selenous acid

98%

Sinónimos:

Selenious acid

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About This Item

Fórmula lineal:
H2SeO3
Número de CAS:
7783-00-8
Peso molecular:
128.97
EC Number:
231-974-7
MDL number:
MFCD00011331
UNSPSC Code:
12352301
PubChem Substance ID:
24852658
NACRES:
NA.22

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.
  • 4-Formyl-7-methylcoumarin using 4,7-dimethylcoumarin in the presence of xylene as a solvent.
  • Selenium substituted quinoxaline derivatives from 2,3-dichloro quionoxaline.

signalword

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2

Storage Class

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

Certificados de análisis (COA)

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D Seidel et al.
Journal of clinical chemistry and clinical biochemistry. Zeitschrift fur klinische Chemie und klinische Biochemie, 16(7), 407-411 (1978-07-01)
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
Kharkongor I, et al.
Tetrahedron Letters, 56, 4359-4362 (2015)
The synthesis of novel coumarin dyes and the study of their photoreaction properties
Wang T, et al.
Dyes and Pigments, 75, 104-110 (2007)
Thomas G Back et al.
The Journal of organic chemistry, 70(23), 9230-9236 (2005-11-05)
[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
H Chen et al.
International journal of food microbiology, 18(2), 151-159 (1993-04-01)
Five Salmonella serotypes recovering from heat injury exhibited different kinetics of resuscitation and growth. Exponential growth was reached before full resuscitation. Fully resuscitated cells and uninjured cells at low cell densities exhibited sensitivity when transferred from non-selective media to selective
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