Ampicillin

see insert in spectrum; 6-[D-a-aminophenylacetamido]-penicillanic acid; ci6H19N3°4 Serva, Heidelberg, GFR suspension in methanol; 20 yg standard 1.6 X 105

REMARKS - Compared to the spectrum of benzylpenici11 in the characteristic penicillin peaks at m/z 100 and 115 are much more pronounced whereas no significant peaks at 147, 136, 119, 97, 91 and 81 are observed indicating a rather different pyrolysis mechanism. The strong peak at m/z 125 may well be characteristic for ampicillin.

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