Sample

CHEMICAL DETAILS SAMPLE ORIGIN SAMPLE PREP./SIZE PYROL. CONDITIONS TOTAL ION COUNTS

REMARKS - Considering the relatively small size of this molecule, the spectrum is unusually complex indicating the occurrence of complicated fragmentation pathways. With the exception of the H2S+" ion at m/z 34 the identity and origin of most of the peaks is as yet unknown. Nevertheless the marked peak series at m/z 34, 71, 74, 88, 100 and 115 is highly characteristic for all penicillins thus far analysed.

: PENICILLIN G, K-salt (benzylpenici11in) : see insert in spectrum; ClgH17N204S(K); MW = 372 : Serva, Heidelberg, GFR : suspension in methanol; 20 yg : standard : 5 X 105

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