6721-33-1

Basic information

• Product Name: azane
• CAS NO: 6721-33-1
• Molecular Formula: CH8N2O3
• Molecular Weight: 17.03
• Mol File: 6721-33-1.mol
• Article Data: 10

Chemical Properties

• Appearance: /
• CAS DataBase Reference: azane(CAS DataBase Reference)
• NIST Chemistry Reference: azane(6721-33-1)
• EPA Substance Registry System: azane(6721-33-1)

Safety Data

• Hazardous Substances Data: 6721-33-1(Hazardous Substances Data)

Upstream product

• 17356-08-0 thiourea 
• 124-38-9 carbon dioxide 
• 7664-41-7 ammonia 
• 57-13-6 urea 
• 7732-18-5 water 
• 12135-76-1 ammonium sulfide 

Downstream Products

• 74697-48-6 5-ethyl-5-(2-hydroxy-phenyl)-imidazolidine-2,4-dione 
• 86029-57-4 (+/-)-5-(4-ethoxy-phenyl)-5-phenyl-imidazolidine-2,4-dione 
• 101444-48-8 (+/-)-5-trans-stilben-4-yl-imidazolidine-2,4-dione 
• 875248-16-1 5-(2-allyloxy-phenyl)-5-methyl-imidazolidine-2,4-dione 
• 7399-34-0 5-(2-hydroxy-phenyl)-5-methyl-imidazolidine-2,4-dione 
• 110970-05-3 5-(4-hydroxy-phenyl)-5-methyl-imidazolidine-2,4-dione 
• 710-94-1 1,3-diazaspiro[4.7]dodecane-2,4-dione 
• 89691-88-3 1,3-diazaspiro[4.3]octane-2,4-dione 
• 113009-22-6 {1-[3-(2,5-Dioxo-imidazolidin-4-yl)-propyl]-cyclohexyl}-acetonitrile 
• 62540-98-1 D,L-isoleucine hydantoin 
• 67337-73-9 5-isobutyl-imidazolidine-2,4-dione 
• 134745-45-2 C₂₅H₃₇NO₄Si 
• 78956-82-8 5-[2-(4-Benzoyl-3,5-dimethyl-1H-pyrrol-2-yl)-ethyl]-5-methyl-imidazolidine-2,4-dione 
• 699-51-4 1,3-diazaspiro[4.4]nonane-2,4-dione 

Relevant articles and documents

Two novel organic-inorganic hybrid compounds with straight and zigzag chain alignments of Cu(II) centers: Synthesis, crystal structure, spectroscopy, thermal analysis and magnetism

Abstract Two hybrid salts, viz. bis(guanidinium) bis(oxalato)cuprate(II) (1) and bis(2-aminopyridinium) bis(oxalato)cuprate(II) trihydrate (2) have been synthesized and characterized by elemental and thermal analyses, IR spectroscopy, single-crystal X-ray diffraction and SQUID magnetometry. Compounds 1 and 2 crystallize in the monoclinic P21/c and triclinic P1ˉ space groups, respectively. In both structures, the four-coordinated Cu(II) ion in [Cu(C2O4)2]2- unit weakly interacts with two axial O-atoms of neighboring units to build a prolate CuO6 octahedron, with regular axial Cu-O bonds of 2.825 ? in 1, whereas in 2 two different Cu-O bonds (2.814 ? and 2.701 ?) are found. In 1, stacking of [Cu(C2O4)2]2- units across internal symmetry-related O-atoms results in equidistantly spaced monomers, thus forming straight Cu(II) chains with regular spacing of Cu?Cu = 3.582 ?. By contrast, in 2, stacking of the [Cu(C2O4)2]2- entities occurs via external symmetry-related O-atoms, yielding zigzag Cu(II) chains with shorter intra-dimer spacing of [Cu?Cu]intra = 3.430 ? and longer inter-dimer spacing of [Cu?Cu]inter = 4.961 ?. The anhydrated compound 1 is stable up to 250 °C, whereas the hydrated compound 2 shows a significant weight loss of solvent water molecules at about 70°C, followed by the decomposition of the network. The magnetic measurements in the 2-300 K temperature range revealed weak antiferromagnetic coupling in the two hybrid salts.

PROCESS FOR PRODUCING METHIONINE

A process for producing methionine by hydrolysis of 5-(β-methylmercaptoethyl)hydantoin in the presence of an alkali, in which the concentration of hydrogen sulfide is 5 ppm or less in a solution used for hydrolysis comprising 5-(β-methylmercaptoethyl)hydantoin and the alkali, whereby methionine can be stably produced for a long period of time.

ENZYMATIC DECOMPOSITION OF CARBAMIDE WITH IMMOBILIZED UREASE

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