BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20260430T000000Z DTEND:20260430T000000Z SUMMARY:30th Congress of the International Society of Heterocyclic Chemistry: Oral abstract deadline due before 30th April 2026 LOCATION:USP São Carlos,São Carlos,Brazil BEGIN:VALARM TRIGGER:-PT2W REPEAT:1 DURATION:PT15M ACTION:DISPLAY DESCRIPTION:Reminder END:VALARM BEGIN:VALARM TRIGGER:-PT1W REPEAT:1 DURATION:PT15M ACTION:DISPLAY DESCRIPTION:Reminder END:VALARM END:VEVENT END:VCALENDAR