Sulfur dioxide solution - SO2≈5% , CAS No.7782-99-2

CAS: 7782-99-2 Cat. No.: S299035 Molecular Weight: 82.08 EC Number: 231-973-1 PubChem CID: 1100

GRADE & PURITY SO2≈5%

Synonyms

BDBM50147623 | CHEBI:48854 | dihydrogen trioxosulfate | MFCD00011335 | SULFUROUS ACID [MI] | Schweflige saure | S(O)(OH)2 | FT-0693956 | SULFUROUS ACID (II) | DTXSID7042435 | SULFUROUS ACID [II] | UNII-J1P7893F4J | H2SO3 | schweflige Saeure | Sulfurous ac

Storage

Room temperature,Argon charged

Shipped In

FedEx DG Service

Specifications

Synonyms

BDBM50147623 | CHEBI:48854 | dihydrogen trioxosulfate | MFCD00011335 | SULFUROUS ACID [MI] | Schweflige saure | S(O)(OH)2 | FT-0693956 | SULFUROUS ACID (II) | DTXSID7042435 | SULFUROUS ACID [II] | UNII-J1P7893F4J | H2SO3 | schweflige Saeure | Sulfurous ac

Specifications & Purity

SO2≈5%

Storage

Room temperature, Argon charged

Shipped In

FedEx DG Service

This product requires cold chain shipping. Ground and other economy services are not available.

Names and Identifiers

• Canonical Smiles: OS(=O)O
• IUPAC Name: sulfurous acid
• InChIKey: LSNNMFCWUKXFEE-UHFFFAOYSA-N
• INCHI: 1S/H2O3S/c1-4(2)3/h(H2,1,2,3)
• Isomeric SMILES: OS(=O)O
• WGK Germany: 1
• PubChem CID: 1100
• UN Number: 1833
• Packing Group: II
• Molecular Weight: 82.08

Taxonomic Classification

Taxonomy Tree

• Kingdom Inorganic compounds
  • Superclass Homogeneous non-metal compounds
    • Class Non-metal oxoanionic compounds
      • Subclass Non-metal sulfites

• Kingdom: Inorganic compounds
• Superclass: Homogeneous non-metal compounds
• Class: Non-metal oxoanionic compounds
• Subclass: Non-metal sulfites
• Intermediate Tree Nodes: Not available
• Direct Parent: Non-metal sulfites
• Alternative Parents: Inorganic oxides
• Molecular Framework: Not available
• Substituents: Non-metal sulfite - Inorganic oxide
• Description: This compound belongs to the class of inorganic compounds known as non-metal sulfites. These are inorganic non-metallic compounds containing a sulfite as its largest oxoanion.
• External Descriptors: a small molecule

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Associated Targets(Human)

CA2 Tclin Carbonic anhydrase II (17698 Activities)

Discover Target: CA2

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CA6 Tclin Carbonic anhydrase VI (993 Activities)

Discover Target: CA6

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CA1 Tclin Carbonic anhydrase I (13240 Activities)

Discover Target: CA1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CA9 Tclin Carbonic anhydrase IX (8255 Activities)

Discover Target: CA9

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Associated Targets(non-human)

Ca7 Carbonic anhydrase VII (3 Activities)

Discover Target: Ca7

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

Ca13 Carbonic anhydrase XIII (322 Activities)

Discover Target: Ca13

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CA4 Carbonic anhydrase IV (1713 Activities)

Discover Target: CA4

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

Carbonic anhydrase (69 Activities)

Explore this target

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CA Alpha carbonic anhydrase (93 Activities)

Discover Target: CA

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

Mechanisms of Action

Chemical and Physical Properties

• Sensitivity: Air sensitive
• Molecular Weight: 82.080 g/mol
• XLogP3: -0.500
• Hydrogen Bond Donor Count: 2
• Hydrogen Bond Acceptor Count: 4
• Rotatable Bond Count: 0
• Exact Mass: 81.9725 Da
• Monoisotopic Mass: 81.9725 Da
• Topological Polar Surface Area: 76.700 Ų
• Heavy Atom Count: 4
• Formal Charge: 0
• Complexity: 26.300
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 1

References

1. Zhuoyue Wang, Ji Li, Wei Song, Jingxin Yang, Wenyi Dong, Xiaolei Zhang.  (2023)  Bisphenol A degradation by chlorine dioxide (ClO2) and S(IV)/ClO2 process: Mechanism, degradation pathways and toxicity assessment.  ENVIRONMENTAL POLLUTION,      [PMID:37838321] [10.1016/j.envpol.2023.122736]

2. Feilong Qiu, Xiaoyu Zhang, Yu Qiao, Xueping Zhang, Han Deng, Tianrui Shi, Ping He, Haoshen Zhou.  (2017)  An ultra-stable and enhanced reversibility lithium metal anode with a sufficient O2 design for Li-O2 battery.  Energy Storage Materials,      [PMID:] [10.1016/j.ensm.2017.12.011]

3. Xiaomin Yuan, Bo Zhu, Xun Cai, Jianjun Liu, Kun Qiao, Junwei Yu.  (2016)  Optimization of interfacial properties of carbon fiber/epoxy composites via a modified polyacrylate emulsion sizing.  APPLIED SURFACE SCIENCE,      [PMID:] [10.1016/j.apsusc.2016.12.234]

4. He Tang, Xihe Yang, Fengjian Chu, Shiwen Zhou, Wangyu Li, Yongqi Li, Haiyan Zhang, Zechen Yu, Hongru Feng, Yuanjiang Pan.  (2025)  Oxidation of Organic Sulfur at the Air–Water Interface of Microdroplets: A New Way of Atmospheric Particle Precursor Formation.  ACS Environmental Au,      [PMID:41583862] [10.1021/acsenvironau.5c00168]