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RK-4
Tier C — Watch / tradeRK-4
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Originator
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First approval
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Expiry (public)
No sales data
Peak sales
Small molecule
Type
Targets：Updating
Indications (approved)：Ischaemic stroke, Stroke, Cerebral infarction
Regional status
US
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EU
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China
Phase II
2025-09-20
Japan
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Synthetic routes & intermediates
Routes not yet onboarded — the daily pipeline enriches by priority (approved small molecules first); this page updates automatically.
Frequently asked questions
What are the approved indications of RK-4?
Approved indications include: Ischaemic stroke, Stroke, Cerebral infarction.
When does the RK-4 patent expire?
No public expiry year is available for RK-4 yet; this page updates once verified.
How do I get a quote for RK-4 intermediates?
Open the CAS profile of the target intermediate from this page, or submit an RFQ directly — the CAS enters the matching flow automatically and the supply network responds with quotes.
Source: cross-verified data (structured fields only) · 2026-09-30