Heterocyclyl polymethine IR chromophores
US-11292778-B2 · Apr 5, 2022 · US
Near and shortwave infrared polymethine dyes
US12043619B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12043619-B2 |
| Application number | US-201816499700-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 3, 2018 |
| Priority date | Apr 3, 2017 |
| Publication date | Jul 23, 2024 |
| Grant date | Jul 23, 2024 |
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- Title
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Abstract
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Near infrared and shortwave infrared dyes can have polymethine structures.
First claim
Opening claim text (preview).
What is claimed is: 1. A flavylium polymethine dye selected from: wherein X − is Cl − , ClO 4 − , BF 4 − , Br − , I − , tosylate, triflate, trifluoroacetate, acetate, bromide, or tetraalkylborate, and R is hydrogen, alkyl, acyl or heteroalkyl. 2. The flavylium polymethine dye of claim 1 , wherein the flavylium polymethine dye is 3. The flavylium polymethine dye of claim 1 , wherein the flavylium polymethine dye is 4. The flavylium polymethine dye of claim 1 , wherein the flavylium polymethine dye is 5. The flavylium polymethine dye of claim 1 , wherein the flavylium polymethine dye is 6. The flavylium polymethine dye of claim 1 , wherein the flavylium polymethine dye is wherein R is hydrogen, alkyl, acyl or heteroalkyl. 7. The flavylium polymethine dye of claim 1 , wherein the flavylium polymethine dye is 8. The flavylium polymethine dye of claim 1 , wherein the flavylium polymethine dye is 9. The flavylium polymethine dye of claim 1 , wherein the flavylium polymethine dye is
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Classifications
five >CH- groups · CPC title
three >CH- groups, e.g. carbocyanines · CPC title
one >CH- group, e.g. cyanines, isocyanines, pseudocyanines · CPC title
the polymethine chain being part of a carbocyclic ring,(e.g. benzene, naphtalene, cyclohexene, cyclobutenene-quadratic acid) · CPC title
the substituent being CN · CPC title
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- What does patent US12043619B2 cover?
- Near infrared and shortwave infrared dyes can have polymethine structures.
- Who is the assignee on this patent?
- Massachusetts Inst Technology
- What technology area does this patent fall under?
- Primary CPC classification C07D411/10. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 23 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).