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S8

S8 structure

CAS No:
10544-50-0
Formula:
S8
Chemical Name:
S8
Synonyms:
Sulfur,mol. (S8);Sulfur (S8);Sulfur molecule (S8);Orthorhombic sulfur;Cyclic octaatomic sulfur;Cyclooctasulfur;Octasulfur;Cyclooctasulfane;Sulfur octaatomic molecule;S8;Cyclo-S8;NSC 603623;Octathiocane;115725-44-5
Categories:
Specialty Chemicals

Description

Cyclooctasulfur, also known as α-sulfur, is a yellow crystalline allotrope of the element sulfur, characterized by its distinctive ring-shaped molecular structure with the chemical formula S8. This particular form of sulfur is highly stable under standard conditions of temperature and pressure, making it the most stable allotrope of sulfur in its natural state. The cyclooctasulfur molecules are composed of eight sulfur atoms linked together in a closed loop, which gives rise to its unique crystalline structure. This stability and its crystalline nature make cyclooctasulfur a fascinating subject of study in the field of chemistry, particularly in the context of allotropy and the physical properties of elements.

S8 Basic Attributes

Molecular Weight：

256.5 g/mol

Exact Mass：

256.52

EC Number：

215-437-4|927-196-9

UNII：

70FD1KFU70

NSC Number：

603623

DSSTox ID：

DTXSID80872924

Characteristics

PSA：

202 Å²

Toxicity

Toxicity Summary：

rat oral LD50 of greater than 5,000 mg/kg (3, 10); and greater than 8,437 mg/kg.

Protein Binding：

Intended for local use only, no systemic absorption.

Drug Information

Drug Indication：

Topically it is indicated for dandruff, acne, Hayfever, common cold, scaly and red skin patches (seborrheic dermatitis). Poison ivy, and sumac infections.

Pharmacology：

Sulfur is converted to hydrogen sulfide (H2S) through reduction, partly by bacteria. H2S has a lethal action on bacteria (possibly including Propionibacterium acnes) which plays a role in acne, fungi, and parasites such as scabies mites.

Absorption：

Intended for local use only, no systemic absorption.

Metabolism/Metabolites：

Intended for local use only, no systemic absorption.

Biological Half-Life：

Intended for local use only, no systemic absorption.

Mechanism of Action：

Sulfur acts as a keratolytic agent and also it has antibacterial activity. It also kills fungi, scabies mites and other parasites. Precipitated sulfur and colloidal sulfur are used, in form of lotions, creams, powders, soaps, and bath additives, for the treatment of acne vulgaris, acne rosacea, and seborrhoeic dermatitis.

MeSH Entry Terms：

cyclooctasulfur

S8 Use and Manufacturing

Cyclooctasulfur, also known as sulfur or sulphur, is a chemical element that plays a significant role in various industrial and agricultural applications. It is primarily utilized in the production of sulfuric acid, which is a fundamental chemical used in a wide range of processes, including the manufacturing of fertilizers, detergents, and various other chemicals. Additionally, cyclooctasulfur is an essential component in the vulcanization process of rubber, which is crucial for the production of durable and resilient rubber products such as tires, hoses, and other rubber components used in vehicles and machinery. In the agricultural sector, cyclooctasulfur is employed as a key ingredient in fungicides, helping to control and prevent fungal diseases that can affect crops, thus ensuring a healthy yield. Beyond these primary uses, cyclooctasulfur also serves as a valuable reagent in chemical synthesis, enabling the creation of a diverse array of chemical compounds through its unique properties and reactions. Its versatility and importance in these fields underscore the critical role that cyclooctasulfur plays in modern industry and agriculture.

Computed Properties

Molecular Weight:256.5
XLogP3:3.5
Hydrogen Bond Acceptor Count:8
Exact Mass:255.7765694
Monoisotopic Mass:255.7765694
Topological Polar Surface Area:202
Heavy Atom Count:8
Complexity:24
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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Grade: Industrial Grade

Content: 95%

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