Sulfurous Acid

Sulfurous Acid

SCHEMBL4886336

O=S([O-])O.O=S([O-])O.[Fe+2]

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.

Compoundsimilaritytop predictedshared targets
Sulfurous Acid SCHEMBL4753051 0.89 CA1 (0.50)
Sulfurous Acid SCHEMBL250500 0.89
Sulfurous Acid SCHEMBL889 0.89
Sulfurous Acid SCHEMBL3505171 0.89
Sulfurous Acid SCHEMBL3229326 0.89
Sulfurous Acid SCHEMBL11649495 0.89
Sulfurous Acid SCHEMBL10380372 0.89 CA1 (0.50)
Sulfurous Acid SCHEMBL4280222 0.89 CA1 (0.50)
Sulfurous Acid SCHEMBL21752880 0.89
Sulfurous Acid SCHEMBL10983302 0.89 CA1 (0.50)

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

PatentTitleAssigneePublishedPriorityFilingCountryStatus
CN-218195774-U Novel aldehyde-free plywood 河南省禾佳木业有限公司 2023-01-03 CN claimed
US-9440915-B2 Method for preparing methanedisulfonic acid HUNAN ASTAR BIO-CHEMICAL TECHNOLOGY CO., LTD. (CN) 2016-09-13 US claimed
US-20150353484-A1 Method for preparing methanedisulfonic acid HUNAN ASTAR BIO-CHEMICAL TECHNOLOGY CO., LTD. (CN) 2015-12-10 US claimed
US-5462670-A Process for removing oils and greases from aqueous solution ROMAR TECHNOLOGIES, INC. (US) 1995-10-31 US claimed
US-5389262-A Process for removing heavy metals from solutions with ferrous dithionite and hydroxide ROMAR TECHNOLOGIES, INC. (US) 1995-02-14 US claimed
US-5298168-A Ferrous dithionite process and composition for removing dissolved heavy metals from water ROMAR TECHNOLOGIES, INC. (US) 1994-03-29 US claimed
EP-0508676-A2 Composition for producing ferrous dithionite and process for removing dissolved heavy metals from water ROMAR TECHNOLOGIES INCORPORATED (US) 1992-10-14 EP claimed
US-5122279-A Ferrous dithionite process and compositions for removing dissolved heavy metals from water ROMAR TECHNOLOGIES INC. (US) 1992-06-16 US claimed
WO-1990013679-A1 A NOVEL PROCESS FOR THE TREATMENT OF ZINC SULPHIDE CONTAINING ORES AND/OR CONCENTRATES UNIVERSITY OF WATERLOO (CA) 1990-11-15 WO claimed
US-12331002-B2 Stabilized urea fertilizer compositions and methods for preparing same TESSENDERLO GROUP NV (BE) 2025-06-17 US disclosed
US-12330999-B2 Compositions comprising solid thiosulfates, polysulfides and/or (bi)sulfites and methods for preparing same TESSENDERLO GROUP NV (BE) 2025-06-17 US disclosed
EP-4526255-A1 PROCESS FOR PRODUCING ALKALI HYDROXIDE OR ALKALINE EARTH OXIDE EMPLOYING A WEAK ACID INTERMEDIATE Innovator Energy Llc (US) 2025-03-26 EP disclosed
US-20250091977-A1 Sodium Hydroxide Production with Carboxylic Acid and Sulfur Dioxide Intermediates INNOVATOR ENERGY LLC 2025-03-20 US disclosed
US-20250019336-A1 Calcium Oxide or Magnesium Oxide Production with Alkali and Sulfur Dioxide Intermediates INNOVATOR ENERGY LLC 2025-01-16 US disclosed
EP-0078329-B1 PROCESS FOR THE REMOVAL OF CYANIDE FROM AN AQUEOUS SOLUTION Engineering and Technical Consultants, Inc. (US) 1985-07-31 EP disclosed
EP-0078329-A1 Process for the removal of cyanide from an aqueous solution Engineering and Technical Consultants, Inc. (US) 1983-05-11 EP disclosed
EP-0078329-A1 Process for the removal of cyanide from an aqueous solution Engineering and Technical Consultants, Inc. (US) 1983-05-11 EP disclosed
US-4322214-A USING A SULFUR OR SULFURIZED VAT DYE IN AN ALKALINE BATH CONTAINING A MERCAPTO COMPOUND AND A SULFITE SALT; LEVELING ASAHI CHEMICAL COMPANY LIMITED (JP) 1982-03-30 US disclosed
US-4312760-A Method for the removal of free and complex cyanides from water ENGINEERING & TECHNICAL CONSULTANTS INC 1982-01-26 US disclosed
US-4312760-A Method for the removal of free and complex cyanides from water ENGINEERING & TECHNICAL CONSULTANTS INC 1982-01-26 US disclosed