hapten ahpten hpaten phaten aphten pahten hatpen ahtpen htapen thapen athpen tahpen hptaen phtaen htpaen thpaen pthaen tphaen apthen pathen atphen taphen ptahen tpahen hapetn ahpetn hpaetn phaetn aphetn pahetn haeptn aheptn heaptn ehaptn aehptn eahptn hpeatn pheatn hepatn ehpatn pehatn ephatn apehtn paehtn aephtn eaphtn peahtn epahtn hatepn ahtepn htaepn thaepn athepn tahepn haetpn ahetpn heatpn ehatpn aehtpn eahtpn hteapn theapn hetapn ehtapn tehapn ethapn atehpn taehpn aethpn eathpn teahpn etahpn hptean phtean htpean thpean pthean tphean hpetan phetan heptan ehptan pehtan ephtan htepan thepan hetpan ehtpan tehpan ethpan ptehan tpehan pethan epthan tephan etphan aptehn patehn atpehn tapehn ptaehn tpaehn apethn paethn aepthn eapthn peathn epathn atephn taephn aetphn eatphn teaphn etaphn pteahn tpeahn petahn eptahn tepahn etpahn haptne ahptne hpatne phatne aphtne pahtne hatpne ahtpne htapne thapne athpne tahpne hptane phtane htpane thpane pthane tphane apthne pathne atphne taphne ptahne tpahne hapnte ahpnte hpante phante aphnte pahnte hanpte ahnpte hnapte nhapte anhpte nahpte hpnate phnate hnpate nhpate pnhate nphate apnhte panhte anphte naphte pnahte npahte hatnpe ahtnpe htanpe thanpe athnpe tahnpe hantpe ahntpe hnatpe nhatpe anhtpe nahtpe htnape thnape hntape nhtape tnhape nthape atnhpe tanhpe anthpe nathpe tnahpe ntahpe hptnae phtnae htpnae thpnae pthnae tphnae hpntae phntae hnptae nhptae pnhtae nphtae htnpae thnpae hntpae nhtpae tnhpae nthpae ptnhae tpnhae pnthae npthae tnphae ntphae aptnhe patnhe atpnhe tapnhe ptanhe tpanhe apnthe panthe anpthe napthe pnathe npathe atnphe tanphe antphe natphe tnaphe ntaphe ptnahe tpnahe pntahe nptahe tnpahe ntpahe hapent ahpent hpaent phaent aphent pahent haepnt ahepnt heapnt ehapnt aehpnt eahpnt hpeant pheant hepant ehpant pehant ephant apehnt paehnt aephnt eaphnt peahnt epahnt hapnet ahpnet hpanet phanet aphnet pahnet hanpet ahnpet hnapet nhapet anhpet nahpet hpnaet phnaet hnpaet nhpaet pnhaet nphaet apnhet panhet anphet naphet pnahet npahet haenpt ahenpt heanpt ehanpt aehnpt eahnpt hanept ahnept hnaept nhaept anhept nahept henapt ehnapt hneapt nheapt enhapt nehapt aenhpt eanhpt anehpt naehpt enahpt neahpt hpenat phenat hepnat ehpnat pehnat ephnat hpneat phneat hnpeat nhpeat pnheat npheat henpat ehnpat hnepat nhepat enhpat nehpat penhat epnhat pnehat npehat enphat nephat apenht paenht aepnht eapnht peanht epanht apneht paneht anpeht napeht pnaeht npaeht aenpht eanpht anepht naepht enapht neapht penaht epnaht pneaht npeaht enpaht nepaht hatenp ahtenp htaenp thaenp athenp tahenp haetnp ahetnp heatnp ehatnp aehtnp eahtnp hteanp theanp hetanp ehtanp tehanp ethanp atehnp taehnp aethnp eathnp teahnp etahnp hatnep ahtnep htanep thanep athnep tahnep hantep ahntep hnatep nhatep anhtep nahtep htnaep thnaep hntaep nhtaep tnhaep nthaep atnhep tanhep anthep nathep tnahep ntahep haentp ahentp heantp ehantp aehntp eahntp hanetp ahnetp hnaetp nhaetp anhetp nahetp henatp ehnatp hneatp nheatp enhatp nehatp aenhtp eanhtp anehtp naehtp enahtp neahtp htenap thenap hetnap ehtnap tehnap ethnap htneap thneap hnteap nhteap tnheap ntheap hentap ehntap hnetap nhetap enhtap nehtap tenhap etnhap tnehap ntehap enthap nethap atenhp taenhp aetnhp eatnhp teanhp etanhp atnehp tanehp antehp natehp tnaehp ntaehp aenthp eanthp anethp naethp enathp neathp tenahp etnahp tneahp nteahp entahp netahp hptena phtena htpena thpena pthena tphena hpetna phetna heptna ehptna pehtna ephtna htepna thepna hetpna ehtpna tehpna ethpna ptehna tpehna pethna epthna tephna etphna hptnea phtnea htpnea thpnea pthnea tphnea hpntea phntea hnptea nhptea pnhtea nphtea htnpea thnpea hntpea nhtpea tnhpea nthpea ptnhea tpnhea pnthea npthea tnphea ntphea hpenta phenta hepnta ehpnta pehnta ephnta hpneta phneta hnpeta nhpeta pnheta npheta henpta ehnpta hnepta nhepta enhpta nehpta penhta epnhta pnehta npehta enphta nephta htenpa thenpa hetnpa ehtnpa tehnpa ethnpa htnepa thnepa hntepa nhtepa tnhepa nthepa hentpa ehntpa hnetpa nhetpa enhtpa nehtpa tenhpa etnhpa tnehpa ntehpa enthpa nethpa ptenha tpenha petnha eptnha tepnha etpnha ptneha tpneha pnteha npteha tnpeha ntpeha pentha epntha pnetha npetha enptha neptha tenpha etnpha tnepha ntepha entpha netpha aptenh patenh atpenh tapenh ptaenh tpaenh apetnh paetnh aeptnh eaptnh peatnh epatnh atepnh taepnh aetpnh eatpnh teapnh etapnh pteanh tpeanh petanh eptanh tepanh etpanh aptneh patneh atpneh tapneh ptaneh tpaneh apnteh panteh anpteh napteh pnateh npateh atnpeh tanpeh antpeh natpeh tnapeh ntapeh ptnaeh tpnaeh pntaeh nptaeh tnpaeh ntpaeh apenth paenth aepnth eapnth peanth epanth apneth paneth anpeth napeth pnaeth npaeth aenpth eanpth anepth naepth enapth neapth penath epnath pneath npeath enpath nepath atenph taenph aetnph eatnph teanph etanph atneph taneph anteph nateph tnaeph ntaeph aentph eantph anetph naetph enatph neatph tenaph etnaph tneaph nteaph entaph netaph ptenah tpenah petnah eptnah tepnah etpnah ptneah tpneah pnteah npteah tnpeah ntpeah pentah epntah pnetah npetah enptah neptah tenpah etnpah tnepah ntepah entpah netpah
Note: these 'words' (valid or invalid) are all the permutations of the word hapten. These words are obtained by scrambling the letters in hapten.