Hypophosphorous Acid

Hypophosphorous Acid

SCHEMBL146221

O=[PH2]O.[CaH2]

nearest known ligand 0.00

Full drug profile on Sugi Atlas →

⚠ 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 4573 patents — a generic fragment claimed broadly, so it's down-weighted as IP noise. Top by claim status then date:

PatentTitleAssigneePublishedPriorityFilingCountryStatus
CN-122080395-A Low-melting-point high-barrier semi-aromatic polyamide copolymer and preparation method thereof 2026-05-26 CN claimed
CN-122035920-A Method for decoloring and whitening barite powder 黔南民族师范学院 2026-05-15 CN claimed
CN-122037175-A Halogen-free flame-retardant transparent nylon and preparation method thereof 中化学科学技术研究有限公司 2026-05-15 CN claimed
CN-122055817-A Nickel lithium manganate positive electrode material and preparation method and application thereof 宁波容百新能源科技股份有限公司 2026-05-15 CN claimed
CN-122011578-A Fluorine-free halogen-free flame retardant polypropylene composition and preparation method and application thereof 金发科技股份有限公司 2026-05-12 CN claimed
CN-122011361-A Phosphorus-containing flame-retardant nano fluid and preparation method and application thereof 华侨大学 2026-05-12 CN claimed
CN-122011579-A Fluorine-free halogen-free flame retardant polypropylene composition and preparation method and application thereof 金发科技股份有限公司 2026-05-12 CN claimed
US-20260091072-A1 FOOD PRODUCTS COMPRISING OXALIC ACID- OR OXALATE-FREE INONOTUS OBLIQUUS EXTRACT THE BETTER FOR YOU COMPANY, LLC (US) 2026-04-02 US claimed
EP-4712792-A1 A NOVEL FEED COMPOSITION DSM IP Assets B.V. (NL) 2026-03-25 EP claimed
EP-4709888-A1 ORE FILTRATION Coatex (FR) 2026-03-18 EP claimed
US-4344977-A ALKALI METAL NITRITE AND HYPOPHOSPHOROUS ACID OR ITS SODIUM, POTASSIUM, MAGNESIUM OR CALCIUM SALT FMC CORPORATION (US) 1982-08-17 US claimed
US-4338345-A ALKALI METAL NITRITE AND HYPOPHOSPHOROUS ACID OR SALT FMC CORPORATION (US) 1982-07-06 US claimed
US-4328132-A Color stabilization of flame retardant PHILLIPS PETROLEUM COMPANY (US) 1982-05-04 US claimed
EP-0037887-A1 Method for inhibiting the growth of clostridium botulinum and the formation of enterotoxin in poultry and fish products, and in smoked meat FMC Corporation (US) 1981-10-21 EP claimed
US-4282260-A ADDING HYPOPHOSPHOROUS ACID OR ITS SODIUM, POTASSIUM, CALCIUM OR MANGANESE SALT FMC CORPORATION (US) 1981-08-04 US claimed
US-4277507-A ADDING HYPOPHOSPHOROUS ACID OR ITS SALT FMC CORPORATION (US) 1981-07-07 US claimed
US-4212793-A BY POLYARYLENE SULFIDE RESINS, ADDING CALCIUM HYPOPHOSPHITE, SODIUM TETRABORATE, CITRATE, PHOSPHATE OR PYROPHOSPHATE PHILLIPS PETROLEUM COMPANY (US) 1980-07-15 US claimed
US-4176227-A REACTING A CALCIUM SALT AND A FLUORIDE SALT IN MOLTEN NYLON, CALCIUM FLUORIDE MONSANTO COMPANY (US) 1979-11-27 US claimed
US-4059463-A Process for producing ferromagnetic powder FUJI PHOTO FILM CO., LTD. (JA) 1977-11-22 US claimed
US-4058600-A HYPOPHOSPHOROUS ACID OR SALTS PHILAGRO S.A. (FR) 1977-11-15 US claimed