⚠ Novel chemotype — no close known analogue (best Tanimoto < 0.3). Unexplored chemical space relative to ChEMBL.
Similar compounds — the chemically nearest patent molecules
Nearest neighbours by Morgan-fingerprint cosine across the patent-compound collection, with each neighbour's top predicted target and the predicted targets it shares with this molecule.
| Compound | similarity | top predicted | shared targets | |
|---|---|---|---|---|
| Water SCHEMBL28435541 | 0.97 | CYP1A2 (0.36) | — | |
| SCHEMBL11376498 | 0.89 | HTT (0.35) | — | |
| SCHEMBL18650476 | 0.89 | CYP1A2 (0.32) | — | |
| SCHEMBL3262072 | 0.83 | — | — | |
| N,N'-Dinitrosopiperazine SCHEMBL2353649 | 0.83 | — | — | |
| SCHEMBL18650423 | 0.77 | L3MBTL1 (0.38) | — | |
| SCHEMBL18650474 | 0.76 | TSHR (0.38) | — | |
| SCHEMBL29833619 | 0.76 | — | — | |
| SCHEMBL29666121 | 0.75 | — | — | |
| SCHEMBL18650288 | 0.73 | — | — |
Similarity is cosine over the 2,048-bit Morgan fingerprint (≈ Tanimoto). Identical fingerprints score 1.00.
Patent provenance — the patents this molecule appears in, and who filed them
Claimed or disclosed in 80 patents — showing the first 20. claimed = in the patent's claims; disclosed = body only.
| Patent | Title | Assignee | Published | Priority | Filing | Country | Status |
|---|---|---|---|---|---|---|---|
| US-20260000577-A1 | METHODS AND ASSEMBLIES FOR CONTROL OF FORMATION OF NITROSAMINE IMPURITIES IN SOLID ACTIVE PHARMACEUTICAL INGREDIENTS | OLON SPA (IT) | 2026-01-01 | — | — | US | claimed |
| US-20250197419-A1 | PURIFICATION PROCESSES OF RIFAMPICIN FROM NITROSAMINES | OLON S.P.A. (IT) | 2025-06-19 | — | — | US | claimed |
| EP-4551178-A1 | METHOD AND ASSEMBLY FOR THE CONTROL OF THE FORMATION OF A NITROSAMINE IMPURITY IN A SOLID ACTIVE PHARMACEUTICAL INGREDIENT | OLON S.p.A. (IT) | 2025-05-14 | — | — | EP | claimed |
| EP-4522625-A1 | PURIFICATION PROCESS OF RIFAMPICIN FROM NITROSAMINES | OLON S.p.A. (IT) | 2025-03-19 | — | — | EP | claimed |
| CN-119173519-A | Method for purifying rifampicin from nitrosamines | 欧伦股份公司 | 2024-12-20 | — | — | CN | claimed |
| WO-2024009248-A1 | METHOD AND ASSEMBLY FOR THE CONTROL OF THE FORMATION OF A NITROSAMINE IMPURITY IN A SOLID ACTIVE PHARMACEUTICAL INGREDIENT | OLON S.P.A. (IT) | 2024-01-11 | — | — | WO | claimed |
| CN-117328068-A | Tungsten plug chemical mechanical polishing solution for reducing dishing and application thereof | 万华化学集团电子材料有限公司 | 2024-01-02 | — | — | CN | claimed |
| WO-2023218419-A1 | PURIFICATION PROCESS OF RIFAMPICIN FROM NITROSAMINES | OLON S.P.A. (IT) | 2023-11-16 | — | — | WO | claimed |
| US-20230148226-A1 | COMPOSITIONS OF STABLE FORMULATIONS OF VARENICLINE SALT OR BASE FORM WITH CONTROL ON NITROSO IMPURITIES | THE TEXAS A&M UNIVERSITY SYSTEM | 2023-05-11 | — | — | US | claimed |
| US-20230133326-A1 | STABLE PHARMACEUTICAL COMPOSITIONS OF METFORMIN WITH CONTROL ON NITROSO IMPURITIES | THE TEXAS A&M UNIVERSITY SYSTEM | 2023-05-04 | — | — | US | claimed |
| CN-115710239-A | Production method of 1-amino-4-methylpiperazine | 黑龙江华瑞生物科技有限公司 | 2023-02-24 | — | — | CN | claimed |
| CN-114994188-A | Method for separating and determining rifampicin and 1-methyl-4-nitrosopiperazine content by LC-MS/MS method | 重庆华邦制药有限公司 | 2022-09-02 | — | — | CN | claimed |
| CN-111423397-B | Method for synthesizing 1-amino-4-methylpiperazine by catalytic hydrogenation | 漯河启福医药科技有限公司 | 2021-04-30 | — | — | CN | claimed |
| CN-111423397-A | Method for synthesizing 1-amino-4-methylpiperazine by catalytic hydrogenation | 漯河启福医药科技有限公司 | 2020-07-17 | — | — | CN | claimed |
| EP-4731194-A1 | MATERIALS AND METHODS FOR MITIGATING THE PRESENCE OF NITROSAMINES IN PACKAGING USING AN ACTIVE AGENT | CSP Technologies, Inc. (US) | 2026-04-29 | — | — | EP | disclosed |
| US-20260102499-A1 | COMPOSITIONS WITH REDUCED NITROSAMINE IMPURITIES | INVENTIA HEALTHCARE LTD (IN) | 2026-04-16 | — | — | US | disclosed |
| CN-121830991-A | Detection method of nitrosamine impurities in levofloxacin sodium chloride injection | 四川科伦药业股份有限公司 | 2026-04-10 | — | — | CN | disclosed |
| US-20090275594-A1 | 3-HYDRAZONE PIPERAZINYL RIFAMYCIN DERIVATIVES USEFUL AS ANTIMICROBIAL AGENTS | JANSSEN PHARMACEUTICA NV (BE) | 2009-11-05 | — | — | US | disclosed |
| US-4075339-A | BACTERICIDES, VIRICIDES, ANTIBIOTICS | UNIVERSITY OF ILLINOIS FOUNDATION (US) | 1978-02-21 | — | — | US | disclosed |
| US-3987035-A | GELDANAMYCIN DERIVATIVES, BACTERICIDES, VIRICIDES | UNIVERSITY OF ILLINOIS FOUNDATION (US) | 1976-10-19 | — | — | US | disclosed |