| abstract |
A hapten of formula II <IMAGE> wherein M is allyl or (R)- alpha -n-propyl, Z1 is <IMAGE> and a carrier-hapten complex comprising: (a) a carrier, and (b) a compound of formula III <IMAGE> wherein M is allyl or (R)- alpha -n-propyl, X is a co-valently linked spacer, are novel compounds. The amount of HLE-1 association complex formed by administration of a beta-lactam inhibitor is determinded by dissociating the complex to yield the hapten. |