Sulfurous Acid

Sulfurous Acid

SCHEMBL36786

N.O=S(O)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.

Compoundsimilaritytop predictedshared targets
Sulfurous Acid SCHEMBL5145215 1.00
Sulfurous Acid SCHEMBL3388945 1.00
Sulfurous Acid SCHEMBL27669278 1.00
Sulfurous Acid SCHEMBL3390951 1.00 CA1 (0.86)
Sulfurous Acid SCHEMBL2424977 1.00 CA1 (0.86)
Sulfurous Acid SCHEMBL11325410 1.00 CA1 (0.86)
Sulfurous Acid SCHEMBL9005155 1.00
Sulfurous Acid SCHEMBL721765 1.00 CA1 (0.86)
Sulfurous Acid SCHEMBL531350 0.94
Sulfurous Acid SCHEMBL9284355 0.94

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 28355 patents — a generic fragment claimed broadly, so it's down-weighted as IP noise. Top by claim status then date:

PatentTitleAssigneePublishedPriorityFilingCountryStatus
CN-116948095-B Polymer, ultra-high temperature oil well cement retarder, preparation method and application thereof, and cement slurry CHINA NATIONAL PETROLEUM CORP. (CN) 2026-05-26 CN claimed
CN-122079112-A Method for preparing sodium vanadium fluorophosphate serving as positive electrode material of sodium ion battery by utilizing electrolytic aluminum waste and positive electrode material 2026-05-26 CN claimed
CN-224279777-U System for electrolytic manganese ammonium sulfate double salt is used for producing ammonium sulfite Ningxia Tianyuan Manganese Industry Co.,Ltd. (CN) 2026-05-26 CN claimed
CN-122070998-A Modified catalyst, preparation method thereof and application thereof in catalytic degradation of VOCs 中国科学院城市环境研究所 2026-05-22 CN claimed
CN-122057350-A Low-sulfur flue gas spray washing and heat exchanger integrated desulfurization and whitening treatment system and treatment method thereof 云南天朗环境科技有限公司 2026-05-19 CN claimed
CN-117484096-B Manufacturing method of thin-wall gold cavity with special-shaped slotted hole 中国工程物理研究院激光聚变研究中心 2026-05-19 CN claimed
CN-122061372-A Production method of arundo donax dissolving pulp and application of dissolving pulp 广东荣思东新材料有限公司 2026-05-19 CN claimed
CN-116417704-B Ternary lithium battery anode material recycling method based on supercritical hydrothermal reaction 湖南大学 2026-05-19 CN claimed
CN-122035954-A Harmless and recycling treatment method for manganese slag 湖南中冶长天节能环保技术有限公司 2026-05-15 CN claimed
CN-122038784-A Recovery method of electrodeposited cobalt anode mud 格林美股份有限公司 2026-05-15 CN claimed
US-3943228-A Process for efficiently purifying industrial gas INSTITUT FRANCAIS DU PETROLE, DES CARBURANTS & LUBRIFIANTS (FR) 1976-03-09 US claimed
US-3943174-A Bisulfite reaction with olefins ETHYL CORPORATION (US) 1976-03-09 US claimed
US-3937696-A PROCESS FOR PREPARING HIGHER PURITY AZO COMPOUNDS E. I. DU PONT DE NEMOURS & CO. (US) 1976-02-10 US claimed
US-3937793-A AMMONIA, OXYGEN, SULFUR DIOXIDE HOECHST AKTIENGESELLSCHAFT (DT) 1976-02-10 US claimed
US-3937682-A POLYOLEFINS, CALCIUM SULFITE KUREHA KAGAKU KOGYO KABUSHIKI KAISHA (JA) 1976-02-10 US claimed
US-3936310-A SULFOSUCCINIC ACID DERIVATIVE NIPPON ZEON CO., LTD. (JA) 1976-02-03 US claimed
US-3935100-A Process for the treatment of waste waters containing sulfuric acid and/or ammonium sulfate INSTITUT FRANCAIS DU PETROLE (FR) 1976-01-27 US claimed
US-3934004-A Stain resistant anti-perspirant composition ORREN LEONARD J 1976-01-20 US claimed
US-3932309-A Auto exhaust catalysts prepared from sulfite treated platinum and palladium salt solutions W. R. GRACE & CO. (US) 1976-01-13 US claimed
US-3932585-A CATALYTIC REDUCTION TO NITROGEN NIPPON KOKAN KABUSHIKI KAISHA (JA) 1976-01-13 US claimed