Hypophosphorous Acid

Hypophosphorous Acid

SCHEMBL11460

O=[PH2]O

nearest known ligand 0.00

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⚠ 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.

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

Appears in 140964 patents — a generic fragment claimed broadly, so it's down-weighted as IP noise. Top by claim status then date:

PatentTitleAssigneePublishedPriorityFilingCountryStatus
US-20260145225-A1 SAND CORE AND SAND CORE MAKING METHOD LORAMENDI, S.COOP. (ES) 2026-05-28 US claimed
EP-4748892-A1 RESIN COMPOSITION, PREPREG, RESIN FILM, LAMINATE, PRINTED WIRING BOARD, AND SEMICONDUCTOR PACKAGE Resonac Corporation (JP) 2026-05-27 EP claimed
EP-4746875-A2 CARCINOGENESIS REDUCTION WITH PENTAAZA MACROCYCLIC RING COMPLEX Galera Labs, LLC (US) 2026-05-27 EP claimed
CN-120842841-B High-temperature-resistant bio-based nylon and preparation method thereof Shenzhen jiakaile Industrial Co.,Ltd. (CN) 2026-05-26 CN claimed
CN-116516383-B Self-supporting one-dimensional nanorod array composite material and preparation method and application thereof SHIHEZI UNIVERSITY (CN) 2026-05-26 CN claimed
CN-121321258-B Multifunctional cellulose-based fiber and preparation method thereof QINGDAO UNIVERSITY (CN) 2026-05-26 CN claimed
CN-121736004-B Method for preparing dialkyl phosphonic acid mixed extractant by utilizing olefin byproducts in P507 extractant production, extractant obtained by method and application of extractant TSINGHUA UNIVERSITY (CN) 2026-05-26 CN claimed
CN-122076475-A In-situ doped TiO with wide particle size range2Core-shell structure powder and preparation method and application thereof 2026-05-26 CN claimed
CN-118580256-B Large-size organic ligand hybridized Cu (I) halide material, preparation method and application thereof NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS (CN) 2026-05-26 CN claimed
CN-115974915-B Dialkyl phosphinic acid hybrid salt and preparation method and application thereof NINGBO INSTITUTE OF MATERIALS TECHNOLOGY & ENGINEERING, CHINESE ACADEMY OF SCIENCES (CN) 2026-05-26 CN claimed
US-3962495-A Method of making duplicates of optical or sound recordings RCA CORPORATION (US) 1976-06-08 US claimed
US-3960762-A Production of absorbents BAYER AKTIENGESELLSCHAFT (DT) 1976-06-01 US claimed
US-3957771-A PHOSPHINIC ACID CHLORIDES, ALCOHOLS, HYDROLYSIS HOECHST AKTIENGESELLSCHAFT (DT) 1976-05-18 US claimed
US-3954520-A COBALT-PHOSPHORUS ALLOY INTERNATIONAL BUSINESS MACHINES CORPORATION (US) 1976-05-04 US claimed
US-3953624-A Method of electrolessly depositing nickel-phosphorus alloys RCA CORPORATION (US) 1976-04-27 US claimed
US-3953539-A PHOSPHORUS COMPOUNDS TEIJIN LTD. (JA) 1976-04-27 US claimed
US-3943170-A Process for the preparation of halo-methylphosphinic acid halides HOECHST AKTIENGESELLSCHAFT (DT) 1976-03-09 US claimed
US-3935013-A PHOTOGRAPHY EASTMAN KODAK COMPANY (US) 1976-01-27 US claimed
US-3934004-A Stain resistant anti-perspirant composition ORREN LEONARD J 1976-01-20 US claimed
US-3932340-A ACID CATALYSTS DAICEL LTD. (JA) 1976-01-13 US claimed