Alkylated derivatives of antibiotic Av290

Amide derivatives of acids, an antibiotic produced by Polyangium

Aminothiazolyl ureido sulfoxide cephalosporins

Anaerobic method for preserving whole blood, tissue and componen

Angiogenic factor methods of extraction and method for producing

Animal feed block compositions

Anodynin, an endogenous opiate analgesic from human blood, and p

Anorexigenic composition and method

Anorexigenic composition and method

Anthracycline antibiotics produced by Streptosporangium fragilis

Anti-tumor substance and process for preparing the same

Antibacterial antibiotics LL-CO8078.alpha..sub.1, .alpha..sub.2,

Antibiotic

Antibiotic

Antibiotic 13-384 complex from Micromonospora carbonacea var afr

Antibiotic 1745A/X and methods for the production thereof

Antibiotic 273.sub.a1

Antibiotic 342-14-I and production thereof

Antibiotic 354 and process for producing same

Antibiotic 5057B substance