Known targets — ChEMBL curated mechanism
The experimentally established mechanism targets of Sulfurous Acid. The predicted profile below is derived independently by chemical similarity — agreement is a validation signal, a miss is honest.
⚠ 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.
| Compound | similarity | top predicted | shared targets | |
|---|---|---|---|---|
| Sulfurous Acid SCHEMBL27855024 | 1.00 | CA1 (0.30) | — | |
| Sulfurous Acid SCHEMBL841119 | 0.94 | — | — | |
| Sulfurous Acid SCHEMBL10522810 | 0.94 | — | — | |
| Sulfurous Acid SCHEMBL10793583 | 0.94 | — | — | |
| Sulfurous Acid SCHEMBL11014695 | 0.94 | — | — | |
| Sulfurous Acid SCHEMBL7834480 | 0.94 | — | — | |
| Sulfurous Acid SCHEMBL21802708 | 0.94 | — | — | |
| Sulfurous Acid SCHEMBL11326612 | 0.94 | — | — | |
| Sulfurous Acid SCHEMBL7707769 | 0.94 | — | — | |
| Sulfurous Acid SCHEMBL7718206 | 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 5181 patents — a generic fragment claimed broadly, so it's down-weighted as IP noise. Top by claim status then date:
| Patent | Title | Assignee | Published | Priority | Filing | Country | Status |
|---|---|---|---|---|---|---|---|
| EP-4743405-A1 | PROCESSES FOR PRODUCING CALCIUM OXIDE AND SULFURIC ACID FROM CALCIUM SULFATE WITH MAGNESIUM INTERMEDIATE | Innovator Energy Llc (US) | 2026-05-20 | — | — | EP | claimed |
| US-20260125278-A1 | METHOD FOR RECOVERING NICKEL HYDROXIDE AND NICKEL SULFATE FROM NICKEL-CONTAINING MATERIALS | KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES (KR) | 2026-05-07 | — | — | US | claimed |
| EP-4722168-A1 | PROCESS FOR SEPARATING LIGNOSULFONATE | AustroCel Hallein GmbH (AT) | 2026-04-08 | — | — | EP | claimed |
| US-20250345644-A1 | FIRE RETARDANT COMPOSITIONS CONTAINING A CARBONATE SALT AND ONE OR MORE CORROSION INHIBITORS | PERIMETER SOLUTIONS LP | 2025-11-13 | — | — | US | claimed |
| US-20250340436-A1 | METHODS FOR RECOVERING IODINE (I2) | SOLSTICE ADVANCED MATERIALS US, INC. | 2025-11-06 | — | — | US | claimed |
| EP-4630575-A1 | METHOD OF AMPLIFYING NUCLEIC ACID BY POLYMERASES WITH STRAND DISPLACEMENT ACTIVITY | QIAGEN GmbH (DE) | 2025-10-15 | — | — | EP | claimed |
| US-20250257527-A1 | SULFITE-BASED PROCESSES FOR PRODUCING NANOCELLULOSE, AND COMPOSITIONS AND PRODUCTS PRODUCED THEREFROM | GranBio Intellectual Property Holdings, LLC | 2025-08-14 | — | — | US | claimed |
| US-20250236531-A1 | SYSTEMS AND METHODS FOR PRODUCING ALKALI HYDROXIDES AND SULFURIC ACID OR HYDROCHLORIC ACID | INNOVATOR ENERGY LLC | 2025-07-24 | — | — | US | claimed |
| US-12365597-B1 | Systems and methods for producing alkali hydroxides and sulfuric acid or hydrochloric acid | INNOVATOR ENERGY LLC (US) | 2025-07-22 | — | — | US | claimed |
| US-12350353-B2 | Synthetic enamel and uses thereof | TRUSTEES OF BOSTON UNIVERSITY (US) | 2025-07-08 | — | — | US | claimed |
| US-4122203-A | Fire protective thermal barriers for foam plastics | STAHL JOEL S | 1978-10-24 | — | — | US | claimed |
| US-4102642-A | METAL SULFITE, CARBONATE | BANKS JOHN B | 1978-07-25 | — | — | US | claimed |
| US-4093580-A | AN OLIGOMER OR A COPOLYMER OF A 1-OLEFIN AND AN UNSATURATED ANHYDRIDE | BETZ LABORATORIES, INC. (US) | 1978-06-06 | — | — | US | claimed |
| US-4058587-A | CARBON OR SULFUR DIOXIDE, SERPENTINE | NELSON ERNEST WILLIAM | 1977-11-15 | — | — | US | claimed |
| US-4040838-A | NON-POLLUTING BLEACH OR BLIX SOLUTION; METAL COMPLEX OF ORGANIC ACID, AMMONIUM COMPOUND, MAGNESIUM COMPOUND | FUJI PHOTO FILM CO., LTD. (JA) | 1977-08-09 | — | — | 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-4008124-A | GLUCOSE ISOMERASE | MITSUBISHI CHEMICAL INDUSTRIES LTD. (JA) | 1977-02-15 | — | — | US | claimed |
| US-4003953-A | 2,4,6-TRINITRO-TOLUENE; HEATING, DISSOLVING | THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE ARMY (US) | 1977-01-18 | — | — | US | claimed |
| US-3969482-A | Abatement of high concentrations of acid gas emissions | TELLER ENVIRONMENTAL SYSTEMS, INC. (US) | 1976-07-13 | — | — | US | claimed |
| US-RE28885-E | Method for isomerizing glucose syrups | STANDARD BRANDS INCORPORATED (US) | 1976-06-29 | — | — | US | claimed |