211176
Selenous acid
98%
Synonym(s):
Selenious acid
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About This Item
Linear Formula:
H2SeO3
CAS Number:
Molecular Weight:
128.97
UNSPSC Code:
12352301
PubChem Substance ID:
NACRES:
NA.22
EC Number:
231-974-7
MDL number:
Assay:
98%
Form:
solid
Quality Level
assay
98%
form
solid
mp
70 °C ((lit.)), 70 °C (dec.) (lit.)
solubility
water: 50 mg/mL
density
3.004 g/mL at 25 °C ((lit.)), 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
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.
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signalword
Danger
hcodes
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
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges
Regulatory Information
危险化学品
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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)
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
Thomas G Back et al.
Journal of the American Chemical Society, 124(41), 12104-12105 (2002-10-10)
1,2-Oxaselenolane Se-oxide is a novel cyclic seleninate ester that functions as a remarkably efficient glutathione peroxidase mimetic by catalyzing the reduction of tert-butyl hydroperoxide to tert-butyl alcohol in the presence of benzyl thiol. The seleninate ester can be conveniently generated
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 211176-10G | 04061838771605 |
| 211176-250G | 04061838771612 |
| 211176-50G | 04061838771629 |