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CAS No 543-21-5 , but-2-ynediamide Search by region : China

  • Name: but-2-ynediamide
  • Synonyms: Cellocidin; Acetylenedicarboxylic acid diamide; 2-Butynediamide; Aquamycin; ACETYLENEDICARBOXAMIDE;Lenamycin; Renamycin; Acetylene dicarboxamide;but-2-ynediamide;
  • CAS Registry Number:
  • Melting Point: 179 °C
  • Flash Point: 131.6°C
  • Boiling Point: 294°Cat760mmHg
  • Density: 1.41g/cm3
  • Safety Statements: Poison by ingestion and intravenous routes. Moderately toxic by skin contact. When heated to decomposition it emits toxic fumes of NOx. See also ACETYLENE COMPOUNDS and ALKYNES.
  • Hazard Symbols: T
  • Flash Point: 131.6°C
  • EINECS: 200-816-9
  • Molecular Weight: 112.08676
  • InchiKey: JBTGHKUTYAMZEZ-UHFFFAOYSA-N
  • InChI: InChI=1S/C4H4N2O2/c5-3(7)1-2-4(6)8/h(H2,5,7)(H2,6,8)
  • Risk Statements: 25-21
  • Molecular Formula: C4H4N2O2
  • Molecular Structure:CAS No:543-21-5 but-2-ynediamide

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References of but-2-ynediamide
Title: Cellocidin
CAS Registry Number: 543-21-5
CAS Name: 2-Butynediamide
Synonyms: acetylenedicarboxamide; acetylenedicarboxylic acid diamide; aquamycin; lenamycin
Molecular Formula: C4H4N2O2
Molecular Weight: 112.09
Percent Composition: C 42.86%, H 3.60%, N 24.99%, O 28.55%
Line Formula: H2NCOCoCCONH2
Literature References: Antibiotic substance with antibacterial activity. Produced by Streptomyces chibaensis from soil collected at Chiba City, Japan: Suzuki et al., J. Antibiot. 11, 81 (1958). Synthesis from dimethyl acetylenedicarboxylate and concd ammonium hydroxide at -10°: Saggiomo, J. Org. Chem. 22, 1171 (1957); Suzuki, Okuma, J. Antibiot. 11, 84 (1958). Identity with lenamycin: Y. Sekizawa, Meiji Seika Kenkyu Nempo 1960, 42, C.A. 56, 14609a (1962). Biosynthesis: E. R. H. Jones, J. Chem. Soc. Perkin Trans. 1 1973, 148.
Properties: Crystals from dil methanol, dec. 216-218°. uv max (0.1N NaOH): 299 nm (E1%1cm 290). Sparingly sol in water, methanol, ethanol, acetone, chloroform, glacial acetic acid. Relatively stable in neutral or acid solns, showing no loss of activity at pH 2 to 7 when heated for 10 min at 100°. Unstable in alkaline soln evolving ammonia. LD50 i.v. in mice: 11 mg/kg (Suzuki).
Absorption maximum: uv max (0.1N NaOH): 299 nm (E1%1cm 290)
Toxicity data: LD50 i.v. in mice: 11 mg/kg (Suzuki)