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278882

Sigma-Aldrich

1,1-Dimethyl-2-selenourea

97%

Synonym(s):

1,1-Dimethylselenourea, N,N-Dimethylselenourea

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About This Item

Linear Formula:
(CH3)2NC(Se)NH2
CAS Number:
5117-16-8
Molecular Weight:
151.07
EC Number:
225-854-3
MDL number:
MFCD00008326
UNSPSC Code:
12352100
PubChem Substance ID:
24856839
NACRES:
NA.22

Assay

97%

mp

172-174 °C (lit.)

storage temp.

2-8°C

SMILES string

CN(C)C(N)=[Se]

InChI

1S/C3H8N2Se/c1-5(2)3(4)6/h1-2H3,(H2,4,6)

InChI key

NRTHBQJARHPPAU-UHFFFAOYSA-N

General description

One-electron oxidation of 1,1-dimethyl-2-selenourea (1,1′-dimethyl-2-selenourea) by hydroxyl radicals, one-electron-specific oxidants, was studied using pulse radiolysis technique.

Application

1,1-Dimethyl-2-selenourea was used as precursor to synthesize CdSe quantum dots in aqueous solution under simultaneous illumination with a diode-pumped solid state green laser and a Xe-Hg lamp.

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

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Pulse and ?-radiolysis studies on aqueous solution of 1, 1'-dimethyl-2-selenourea.
Mishra BB, et al.
Radiation Physics and Chemistry, 77(2), 125-130 (2008)
Yang-Wei Lin et al.
Journal of nanoscience and nanotechnology, 6(4), 1092-1100 (2006-06-02)
This paper describes the synthesis of highly water-soluble and fluorescent core-shell-shell silica-CdSe/CdS-silica nanoparticles (CSS silica-QDs-silica NPs). We used cadmium nitrate and 1,1-dimethyl-2-selenourea precursors to synthesize CdSe quantum dots (QDs) in aqueous solution under simultaneous illumination with a diode-pumped solid state

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