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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

Quality Level

100

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)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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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