CINXE.COM
Just a moment...
<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="120"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "waset.org",cType: 'non-interactive',cRay: '91773ba2aca0fe01',cH: 'zrDt0HHQGz3v2e5hi7BT28CT2qniLP10PS.sJGwvFCU-1740481659-1.2.1.1-jUIjkaGUMFxO_PwPkYdy_5D2XF_43mj7VHPbP0x9_14CwxhXLanYIGxZN1ejF3I_',cUPMDTk: "\/chemistry-conference-in-september-2025-in-washington?__cf_chl_tk=7zIhAGoIo9D3Ciw4jvMIYAczP4Ln3raLXKA834jNzxk-1740481659-1.0.1.1-mXsieLAZalQ5hq.TqsOUQs7Kv_ARbIo1m.VwPQDcES4",cFPWv: 'b',cITimeS: '1740481659',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/chemistry-conference-in-september-2025-in-washington?__cf_chl_f_tk=7zIhAGoIo9D3Ciw4jvMIYAczP4Ln3raLXKA834jNzxk-1740481659-1.0.1.1-mXsieLAZalQ5hq.TqsOUQs7Kv_ARbIo1m.VwPQDcES4",md: "6nrliRbpQXVEUSychDzivyb_OM2omehXVOegD954nSk-1740481659-1.2.1.1-fkUZeQZ8IEuGPtaH2GyeMJC5kYD35JanZNrZJDcDDiyzyh200reukCHlYpXvnjLJU.ZIso_U6xDuLOyZAaqxZ6FucXatyVgyO_s6wgvwMMsmvLVjIhsR6ANo6leL7FG_zYgUPGpwl2zYVgnYZXDrSE8ghdyLSH7rsMnxmomxK6GF1oI.XDfj5AAAaq3E3iGNSD..2haAFPXvapUWPQDWH2DfhPWUtJKrK5SdVOZyHI1abqMcuu3LTCrXsB0I5tiD_ybAS9V84qD5iWB6EnieyWT0bVb25vw7XzMfCrwJFGzveTay_qE_UcDxwNslk9xNVV.6McAChWJ0ssOyYVyM8y8ZhkvWMd5Lu16nyn3Z5iaaJFmCNmdRG_NfXPZyCeJFcIsqEhV1ftff.x9kgPWT.FPNWObYLHgGWgf16IedaO2Kl5F18FqrNAzgRHsNo.jgkE9PvodYdvSMPww2PPcG3vktuLDtAxTHx70HuNS33eZF5yk8I8qSJIG2MIY8bIKfJWkI6h2nQPUX0TvlD0mTfmPFtt0zpmz1ubr1bXAtnCvINYXJY.jFCpNzziEOKC4TtVGGKgJREF2va1QJ._JZd9pF26v2X3K78sOKqiN2cp7Jnsd_ElaqY8fmiyvEER7UykBELlBAPH7UnKGC9i2pJ0EgoGVP2Vn1oJ0kqx2_5JxBw87rCPWyqkL0A2ezsnlbrKndZhra_S5xzxenurHb46O1PdOQSM6imj94IbdHeEZ_kFrIDSOojUdx1uq8RMaLQ43bnbdrQVjm59bHMmpvbqSPKZwwlAZZKC2YBHbG6jpaEHCsxNJtfmANt2jscPZ_B39a0VYNyfjTW7JGl8SOcOvM7atRPAYmmSiPPvAdYoMNHq0cm53ev4KAqU11L_cuAKhGRfExKy39CONy3DxDLvTJ8_k.lazOu0rmh_epSoLmxlVz0XOHiubVasQu8yg5yOwYlbMOFdaFh2Oq4kJa0BYl5oU87Csy2zzL5d_i_2Vc1mCUXrDiXzo80sEkTJ5PsPPWV4AbwjdMdu05iL3wUMcaSr_iFILt4F.d7KAyPfMPQEjxmyQVFidRLfPuPZox3hSsEBLGfIojlh4sojGtgmvMsRzSj4hBWpWm2cH9FP16G7a6j0oTJnvcFYWAtZNjR3MlBv.BfzulWPDbJCw2dvTqh.M0cqEoBcxylbkvDTf7PhJiqILrU.DAZZ43m9dKH3w2od.h.HA4QIaeS1rgk62WSWCpQJPvyZFcbNffhENoNm.RCIG1Kac5I_NQeJT3A_nSxqbLHRVjfRR0b32DiaBvBBU1SdREyEa3kS3CJ6c4UtAWunCYWjDN2HP6tbojpWAaXj.z6ni.TQ1RMkQo0LQAM_pQTCA08gbRaJLKN5XoplAW_aJB9f_ZVQJDH5g3RhQNuioDBU2.POzCX1zxn2NNrUfLsNhyAwMhH3vpoxSD4_4kLs7SZnF188S5ZmX_k0ITu4XLRnk4Ll2o0ZL9P5Ms_pH.NRvlu668kEdYIZ1JKncZOCGiuqzYpsgUpnaASO_kbEbaMVwpfzx7FMxO6vhIQlBCMIzvwmvhsL6xmHzaPQMhTYmFFEULOjRkXWFLCX1k.19TAXfHCjbfhDuf0pYXx87NjmoJGzWw_sDlqXQCkcFtBNE0VHSa_JzuWGlmAH3uqVhLEkyyIxWEshGUauXLo5gB1RCgPdyRGvazHzVsiHM4HA4xfUL7yTiwvFnGLi0yQgEBN.2iWZ9m6cK_Z1VJ5RLO1FdqPerZOsvyyr8cYUlYpO90D9mwFRaA6Nr1aH1YEJx34blztJVGM98XZahD.qjB2gS0QRHyW9nhnWr5DSztya3jlbMaRNrAe3WlcuKzKkTZo10DarFFnnG0u3mAkJs4Hg3T77JCCXRY3Cyhg.FZ87tW.LrEHOlPQ_pv4wP4PXOfpFCPo1sLKya2nOWUCD8q.DoMxdTOq1Pw3Ke9PKKOC9pPxKLVNmFaRAzM",mdrd: "wf.F8GylqsHlcOFgFIKVDpon8oOPDTlkXOPfia9NUQA-1740481659-1.2.1.1-YebmjzZxwBK_qjOb9iUH71kMBTDVV0PTbwa_OSUsKMpbVudsi2cn5uk0Uit0eI_pyy0xLTClEf7pgUG.jEjg7qCB16cOYc0vuaX45sGWLXFo2_z3DW5XoezcICtCAHkeSdScdCzxP2AIPBc_jOGHnOsrt5Gl6G15JCY1kyseONxqvYmEjtyRZTeqUFOWbH2K8I4KwoYHJ_.SMX8_Nuh_7X4H3mC.G0ojGUOHNa1NPI3vYMtudzdKmv5xVzbXDSLK01AfZHjM_J_4xYUyyG9lU8U5wRxk0NU1aD00NnGk4MZ8JtV.cDNGD33eigp.nu_EJnI07ddC.Sb.MEBaTSCXqcqOyUSSfEjoZPOv9mA9ArgTQIn38C2sQz1VNCqUc5.dwIHZ0q0eWRPTinRJw3K5N6j2CejmumvRyvGotIsZja9ldLBRl3Nmvs8s64Ss2tzGc38pUOqSFF1G0tJ6jSw2RTpQyPO9Cabrj9aDbixEW5ZMf.WbszZNZLBzfhDVO2771kFppUx0reixASg9t4OIGieVWf0zy.KX8KiVyiVo5fnxnnWTAqf40qeHiSdC3puWuRzd9T_FVbDQBNa61hqz018zVJ4jcoltNroJw0Tc.zFtuHxw0Lsugt4FXigGGlgVDkTdYfJtonQJhUxzIF9gwlnRmDdG_3EaoJh.w7dZly2RclKZ4IqYlFHZ.BdacPRFe__CFwwL5cJx0wq8Ff2wUCzgheU6FQd3HNMtOQY1AT4h2XMtTIG7EziAbrqx9A36SS_IZpY.g90QiEj1y7Otgxbdvkstv3vG04dwyF9A0P9Rls.jQ54MGhCZmXeZWn5BZdS5TSG6K.9AGqUzR3BBVCiEBVmbpRsJKP.lZBCDvZYLiD_Vr6iFT7j.qaK1ipl1s.nPFK5FjLf.KtP1lCsprsXI3XOnoRBXzWaly.LRYD12ZpRlV4Ht7AfSkyLpXcLqlLNv3ch8lv3c9wXTdOkAtP6.6fj4h3hfVxiqhyQbEOJ6aHEG9hzYxDZKkv.Krv6I9FHGPEk1Ea0XWhs3h.p8R7uJKYcXY3RtSgYyGh8xr3j9U4gd7lvFEv6g6sQbydJk18R1bZwB575UkjIV.Vi95.29fxtu1Jw1d7Se3z9j9SoFVwRupUsA1.zzo43LzlMvdGkbRCxJMhC5sA2rT_vSnpOP2pMWZcuneE25QLUpdEic_dSH1iKDnXqJIzHzZXLxyEOX7iSPd4q.DzuWmh1NozZVOGG9LbJNAR9iq7CmGn2c0JpSYtyXOFj8nY.b2BxwD42LyfCt22LK6IFO_X93nZAt9NAWTyz0pCYZId.V0RdU.eCZmOOC_IQwnFkb_FTGKrtGDReBNHkT0dl.aVdFFYmXiH2z3pyYUNtmdU.s3Q2VzSWnLJs.a4YEH34Nqp5O7PROIhI64_QRO4rThf_BjpYxWa.3tnTCfaUUVOtRtClumIZRzS9aMqlsvBWeGjmfk13zBFObV2dAZ4W3mctreLEXrhlNNdK8Uw71nyAzmw4dJ5vLNOALXwTnI05036kQfvmUYC_5Anjth6JWn9pcrPb3_AOrgef7jI7nABARRLa1njeXsHn67WjcL7e7DLjRpil6Ob99XSCfvLrxjyBBLGCCG.RrCzsVKnWcS7bkEZkJ3lytzzIazgKFcItDNalDTDVriWYYRE2vY0cvv2NaMqoqYpAIeyXIqbzoAPiX6bODRq8mI71rNIuoA5cTl9uvOiEoSl7AFxlEYmGBRaBgj7wvSY2.um0hQ8K2SQAKRr7ykhwc3ISg2pX_Jym_dmRZs7xCTl3wF37eenjhhq52h1JmWEsoCqkiYDaU1CSH_1Cwnnec_6TojDr0t.NE3yzGU7kamyUdOLg2oTpS27c7dR73lLiOXS9XPgChA6e4k.9WmM_VzUscWGxbNIXFtOev94z_lDu2TIejmPIjKRnfEO9o19hZTYzD_rWU1DtqI2qW977xD4lfyMNgD_sAj9j9"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91773ba2aca0fe01';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/chemistry-conference-in-september-2025-in-washington?__cf_chl_rt_tk=7zIhAGoIo9D3Ciw4jvMIYAczP4Ln3raLXKA834jNzxk-1740481659-1.0.1.1-mXsieLAZalQ5hq.TqsOUQs7Kv_ARbIo1m.VwPQDcES4" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>