Other numbers: AJ 1234, ATCC 9466, CCTM La 189, CIP 53.159, CNCTC Bs 9/58, IAM 1026, NCDO 737, NCIMB 8159, NRRL B-558, PCI 220, N.R. Smith 1088. History: < BÚ ÈSAV < NCIB < ATCC < FDA < NRLL. Additional information: Taxonomy (4895). Assay of penicillins F and X (290). Cultivation conditions: Medium 10, 30°C.