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CAS No 496-46-8 , 1,3,3a,4,6,6a-hexahydroimidazo[4,5-d]imidazole-2,5-dione

  • Name: 1,3,3a,4,6,6a-hexahydroimidazo[4,5-d]imidazole-2,5-dione
  • Synonyms: Acetylenediurea; 496-46-8; Acetylenediureine; Glyoxaldiureine; Acetylene carbamide;1,3,3a,4,6,6a-hexahydroimidazo[4,5-d]imidazole-2,5-dione; Glyoxaldiurene; Acetyleneurea; Glyoxalbiuret;
  • CAS Registry Number:
  • Melting Point: >300 ºC
  • Flash Point: 421.8 ºC
  • Boiling Point: 861.6 ºC at 760 mmHg
  • Density: 1.42 g/cm3
  • Refractive index: 1.514
  • Safety Statements: S24/25
  • Hazard Symbols: Xn: Harmful;
  • HS Code: 29332990
  • Flash Point: 421.8 ºC
  • EINECS: 207-821-5
  • Molecular Weight: 142.11604
  • InchiKey: VPVSTMAPERLKKM-UHFFFAOYSA-N
  • InChI: InChI=1S/C4H6N4O2/c9-3-5-1-2(7-3)8-4(10)6-1/h1-2H,(H2,5,7,9)(H2,6,8,10)
  • Risk Statements: S24/25:Avoidcontactwithskinandeyes.;
  • Molecular Formula: C4H6N4O2
  • Molecular Structure:CAS No:496-46-8 1,3,3a,4,6,6a-hexahydroimidazo[4,5-d]imidazole-2,5-dione

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References of 1,3,3a,4,6,6a-hexahydroimidazo[4,5-d]imidazole-2,5-dione
Title: Acetyleneurea
CAS Registry Number: 496-46-8
CAS Name: Tetrahydroimidazo[4,5-d]imidazole-2,5-(1H,3H)-dione
Synonyms: glycoluril; acetylenediureine; glyoxaldiureine; acetylene carbamide
Molecular Formula: C4H6N4O2
Molecular Weight: 142.12
Percent Composition: C 33.80%, H 4.26%, N 39.42%, O 22.52%
Literature References: Prepd by the sodium amalgam reduction of allantoin: Biltz, Schiemann, J. Prakt. Chem. 113, 77 (1926); from glyoxal and urea: Reibnitz, US 2731472 (1956 to BASF).
Properties: Crystals, dec at about 300°. Slightly sol in cold, more sol in hot water; sol in warm mineral acids, warm ammonia.