Sulfurous Acid

Sulfurous Acid

SCHEMBL246903

N.O=S([O-])O.[H+]

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

Claimed or disclosed in 1094 patents — showing the first 20. claimed = in the patent's claims; disclosed = body only.

PatentTitleAssigneePublishedPriorityFilingCountryStatus
EP-4357377-B1 METHOD FOR PRODUCING FLUORINE-CONTAINING COPOLYMER AGC INC (JP) 2026-04-08 EP claimed
US-20260028490-A1 STABILISED MINERAL SUSPENSION COATEX (FR) 2026-01-29 US claimed
US-20250361402-A1 STABILISED CONCENTRATED MINERAL SUSPENSION COATEX (FR) 2025-11-27 US claimed
US-20250333605-A1 MINERAL SUSPENSION STABILIZED BY GRINDING COATEX (FR) 2025-10-30 US claimed
US-20250222433-A1 METHOD FOR PRODUCING WATER-ABSORBING RESIN COMPOSITION SUMITOMO SEIKA CHEMICALS CO., LTD. (JP) 2025-07-10 US claimed
CN-120133007-A Tungsten oxide molybdenum ore collector and application thereof 郑州大学 2025-06-13 CN claimed
WO-2025097244-A1 PRODUCTION OF HARD CARBONS FROM ASPHALTENE-RICH HYDROCARBONS THREAD INNOVATIONS INC. (CA) 2025-05-15 WO claimed
EP-4551619-A1 STABILISED CONCENTRATED MINERAL SUSPENSION Coatex (FR) 2025-05-14 EP claimed
WO-2025081265-A1 CARBON FIBER PRODUCTION FROM ASPHALTENE-BASED PRECURSOR MATERIAL THREAD INNOVATIONS INC. (CA) 2025-04-24 WO claimed
EP-4514750-A1 STABILISED MINERAL SUSPENSION Coatex (FR) 2025-03-05 EP claimed
US-4800045-A OXIDATION AND REACTION WITH GTOUP 1 METAL OR AMMONIUM BISULFITES OR SULFITES; LOW IODINE NUMBER; DILING LEATHER AND SKINS HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN (DE) 1989-01-24 US claimed
EP-0163320-B1 POLYBASIC PROPANE SULPHONIC ACIDS AND THEIR SALTS, PROCESS FOR THEIR PRODUCTION AND THEIR USE Akademie der Wissenschaften der DDR (DE) 1988-03-30 EP claimed
US-4375373-A Method of coating inorganic pigments (ultramarine and bronze powder) with dense amorphous silica TORO GANRYO KOGYO CO., LTD. (JP) 1983-03-01 US claimed
US-4133810-A Process for the recovery of ε-caprolactam from a reaction mixture of ε-caprolactam and sulfuric acid STAMICARBON, B.V. (NL) 1979-01-09 US claimed
US-4009088-A Process for producing aqueous solutions of sodium, ammonium and magnesium sulphite RAUMA-REPOLA OY (SF) 1977-02-22 US claimed
US-3989809-A FROM AMMONIUM SULFATES AND SULFITES DAVY POWERGAS GMBH (DT) 1976-11-02 US claimed
US-3966903-A ALKYLENE CARBONATE SHISEIDO CO., LTD. (JA) 1976-06-29 US claimed
US-3961029-A Process for recovering chromic acid solution from a waste liquor containing chromic ions TOKICO LTD. (JA) 1976-06-01 US claimed
US-3959440-A SULFUR DIOXIDE, NITROGEN OXIDE NIPPON KOKAN KABUSHIKI KAISHA (JA) 1976-05-25 US claimed
US-3936310-A SULFOSUCCINIC ACID DERIVATIVE NIPPON ZEON CO., LTD. (JA) 1976-02-03 US claimed