5117-16-8

Basic information

• Product Name: 1,1-DIMETHYL-2-SELENOUREA
• Synonyms: N,N-DIMETHYL-2-SELENOUREA;asym-Dimethylselenium urea;1,1-DIMETHYL-2-SELENOUREA;n,n-dimethyl-selenoure;N,N-Dimethylselenourea,97%;1,1-Dimethylselenourea;1,1-Dimethyl-2-selenourea,97%;1,1-Dimethyl-2-selenourea 97%
• CAS NO: 5117-16-8
• Molecular Formula: C₃H₈N₂Se
• Molecular Weight: 151.07
• EINECS: 225-854-3
• Product Categories: Building Blocks;Organic Building Blocks;Selenium Compounds;organoselenides
• Mol File: 5117-16-8.mol
• Article Data: 6

Chemical Properties

• Melting Point: 172-174 °C(lit.)
• Boiling Point: 177.2±23.0 °C(Predicted)
• Appearance: /solid
• Storage Temp.: 0-6°C
• CAS DataBase Reference: 1,1-DIMETHYL-2-SELENOUREA(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1-DIMETHYL-2-SELENOUREA(5117-16-8)
• EPA Substance Registry System: 1,1-DIMETHYL-2-SELENOUREA(5117-16-8)

Safety Data

• Hazard Codes: T,N
• Statements: 23/25-33-50/53
• Safety Statements: 20/21-28-45-60-61-50
• RIDADR: UN 3283 6.1/PG 2
• WGK Germany: 3
• HazardClass: 6.1(b)
• PackingGroup: III
• Hazardous Substances Data: 5117-16-8(Hazardous Substances Data)

Usage

Description

1,1-Dimethyl-2-selenourea is an organic compound that contains selenium and urea groups. It is characterized by its molecular structure, which consists of a urea molecule with two methyl groups attached to the nitrogen atoms and a selenium atom bonded to the carbonyl carbon. 1,1-Dimethyl-2-selenourea has potential applications in various fields due to its unique properties.

Uses

Used in Semiconductor Industry:
1,1-Dimethyl-2-selenourea is used as a precursor for the synthesis of CdSe quantum dots in aqueous solutions. This application is significant because CdSe quantum dots have unique optical and electronic properties, making them valuable for various applications such as solar cells, light-emitting diodes, and photodetectors.
In the synthesis process, 1,1-Dimethyl-2-selenourea serves as a source of selenium, which is essential for the formation of CdSe quantum dots. The simultaneous illumination with a diode-pumped solid-state green laser and a Xe-Hg lamp facilitates the reaction, leading to the formation of high-quality quantum dots with desired properties.
Overall, 1,1-Dimethyl-2-selenourea plays a crucial role in the production of CdSe quantum dots, contributing to the advancement of semiconductor technology and the development of innovative electronic devices.

InChI:InChI=1/C3H7N2Se/c1-5(2)3(4)6/h4H,1-2H3

Upstream product

• 1467-79-4 NCNMe₂ 

Downstream Products

• 1384463-45-9 4-(2-(dimethylamino)-1,3-selenazol-4-yl)benzonitrile 
• 154437-05-5 N,N-dimethyl-4-phenyl-1,3-selenazol-2-amine 
• 5533-45-9 2-dimethylamino-5-phenyl-selenazol-4-one 

Relevant articles and documents

Inhibition of tyrosinase activity by N,N-unsubstituted selenourea derivatives

This study investigated inhibitory effects of N,N-unsubstituted selenourea derivatives on tyrosinase activity. Three types of N,N-unsubstituted selenoureas derivatives exhibited inhibitory effect on dopa (3,4-dihydroxyphenylalanine) oxidase activity of mushroom tyrosinase. Compound D at a concentration of 200/M exhibited 55.5% of inhibition on dopa oxidase activity of mushroom tyrosinase. This inhibitory effect was higher than that of kojic acid (39.4%), a well known tyrosinase inhibitor. Moreover, the compound D identified as a noncompetitive inhibitor by Lineweaver-Burk plot analysis. In addition, compound D also inhibited the melanin production in melan-a cells.

A Simple Route to N,N-Disubstituted Selenoureas from N,N-Disubstituted Cyanamides

N,N-Disubstituted selenoureas 4 can be obtained in satisfactory yields by addition of an acid to a mixture of freshly prepared sodium selenide and N,N-disubstituted cyanamides 5.

Preparation and characterisation of N,N-disubstituted 2-amino-selenazoles

As a result of checking suited methods for preparing N,N-disubstituted 2-amino-selenazoles 14 as a nearly unknown class of highly reactive selenazoles a simple route starting from N,N-disubstituted selenoureas 12 has been elaborated and used for the synthesis of a series of these compounds. The necessary selenium-containing starting compounds 12 are available from N,N-disubstituted cyanamides 18 and hydrogen selenide.