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Substance Name: M-81
RN: 37305-80-9


  • Water-soluble peptide antibiotic isolated from culture filtrate of Streptomyces griseus subsp. psychrophilus.

Classification Codes

  • Drug / Therapeutic Agent
  • Natural Product
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Names and Synonyms

Name of Substance

  • M-81


  • M-81

Systematic Name

  • Antibiotic M 81

Registry Numbers

CAS Registry Number

  • 37305-80-9

System Generated Number

  • 0037305809


Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 100mg/kg (100mg/kg)   "CRC Handbook of Antibiotic Compounds," Vols.1- , Berdy, J., Boca Raton, FL, CRC Press, 1980Vol. 4(2), Pg. 218, 1980.