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213004

Sigma-Aldrich

Benzeneseleninic acid

99%

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About This Item

Linear Formula:
C6H5SeO2H
CAS Number:
6996-92-5
Molecular Weight:
189.07
Beilstein:
1929765
EC Number:
230-271-2
MDL number:
MFCD00002100
UNSPSC Code:
12352100
PubChem Substance ID:
24852762
NACRES:
NA.22

Quality Level

100

Assay

99%

form

solid

mp

121-124 °C (lit.)

SMILES string

O[Se](=O)c1ccccc1

InChI

1S/C6H6O2Se/c7-9(8)6-4-2-1-3-5-6/h1-5H,(H,7,8)

InChI key

WIHKGDVGLJJAMC-UHFFFAOYSA-N

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General description

Benzeneseleninic acid oxidizes hydrazine or 1,2-disubstituted derivatives to corresponding diazenes.

Application

Benzeneseleninic acid was used as catalyst during the oxidation of sulfides to sulfoxides via ligand coupling on the iodine atom. It was also used in the preparation of 3-methoxy-17a-oxa-D-homoestra-l,3,5(10)-trien-17-one.

Signal Word

Danger

Hazard Statements

H301 + H331,H373,H410

Hazard Classifications

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

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which 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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PDSCL

Poisonous substance

PRTR

Class I Designated Chemical Substances

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

213004-1G:4548173116174
213004-VAR:
213004-BULK:
213004-5G:4548173116198
213004-25G:4548173116181

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Certificates of Analysis (COA)

Lot/Batch Number
MKCN9329
MKCG9267
MKCF1743
MKBP3390V
MKBG3970V

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Oxidation of hydrazines with benzeneseleninic acid and anhydride.
Back TG, et al.
The Journal of Organic Chemistry, 46(8), 1564-1570 (1981)
Facile oxidation of sulfides to sulfoxides using iodosobenzene and benzeneseleninic acid as a catalyst.
Roh KR, et al.
Tetrahedron Letters, 32(6), 793-796 (1991)
1, 2-Hydrogen shifts in thermal and photic Bamford-Stevens reactions of cyclohexanones. Activation by an endocyclic oxygen.
Olmstead KK and Nickon A.
Tetrahedron, 54(40), 12161-12172 (1998)
S Zheng et al.
Hua xi yi ke da xue xue bao = Journal of West China University of Medical Sciences = Huaxi yike daxue xuebao, 26(4), 371-374 (1995-12-01)
In view of the negative relationship between selenium and cancer, we designed and synthesized eleven substituted benzeneselenic acids (IVa-k) The antineoplastic activity of the title compounds was evaluated via the tests of inhibition of acetylcholinesterase, HL-60 and K562 in vitro
Craig A Bayse
Journal of inorganic biochemistry, 104(1), 1-8 (2009-10-30)
The toxicity of selenium is a major barrier to its application to the prevention of cancer, cardiovascular disease, and other chronic ailments. Organic seleninic acids, as well as other reducible selenium compounds, have been shown to react with biological sulfhydryls

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