Pentamethyldisiloxane - ≥95% , CAS No.1438-82-0

CAS: 1438-82-0 Cat. No.: P167295 Formula: C₅H₁₆OSi₂ Molecular Weight: 148.35 EC Number: 215-873-5 PubChem CID: 6327260

GRADE & PURITY ≥95%

Synonyms

Disiloxane,1,1,1,3,3-pentamethyl- | Vinyl Pepentamethyl Disiloxane | 1,1,1,3,3-Pentamethyldisiloxane | s12900 | (trimethylsiloxy)dimethylsilane | dimethyl(trimethylsilyloxy)silicon | EINECS 215-873-5 | PMDS | AKOS006220955 | Pentamethyldisiloxane | A80812

Storage

Room temperature,Argon charged

Shipped In

Normal

Specifications

Synonyms

Disiloxane,1,1,1,3,3-pentamethyl- | Vinyl Pepentamethyl Disiloxane | 1,1,1,3,3-Pentamethyldisiloxane | s12900 | (trimethylsiloxy)dimethylsilane | dimethyl(trimethylsilyloxy)silicon | EINECS 215-873-5 | PMDS | AKOS006220955 | Pentamethyldisiloxane | A80812

Specifications & Purity

≥95%

Storage

Room temperature,Argon charged

Shipped In

Normal

Purity

≥95%

Names and Identifiers

• Pubchem Sid: 488195702
• Pubchem Sid Url: https://pubchem.ncbi.nlm.nih.gov/substance/488195702
• Canonical Smiles: C[Si](C)O[Si](C)(C)C
• InChIKey: XUKFPAQLGOOCNJ-UHFFFAOYSA-N
• INCHI: 1S/C5H15OSi2/c1-7(2)6-8(3,4)5/h1-5H3
• Isomeric SMILES: C[Si](C)O[Si](C)(C)C
• WGK Germany: 3
• PubChem CID: 6327260
• Molecular Weight: 148.35

Taxonomic Classification

Taxonomy Tree

• Kingdom Organic compounds
  • Superclass Organometallic compounds
    • Class Organometalloid compounds
      • Subclass Organosilicon compounds
        • Level5 Organoheterosilanes
          • Level6 Trialkylheterosilanes

• Kingdom: Organic compounds
• Superclass: Organometallic compounds
• Class: Organometalloid compounds
• Subclass: Organosilicon compounds
• Intermediate Tree Nodes: Organoheterosilanes
• Direct Parent: Trialkylheterosilanes
• Alternative Parents: Organic metalloid salts Organic oxygen compounds Hydrocarbon derivatives
• Molecular Framework: Aliphatic acyclic compounds
• Substituents: Trialkylheterosilane - Organic metalloid salt - Organic oxygen compound - Hydrocarbon derivative - Aliphatic acyclic compound
• Description: This compound belongs to the class of organic compounds known as trialkylheterosilanes. These are organoheterosilanes, bearing a silicon atom linked to three alkyl groups and one heteroatom.
• External Descriptors: Not available

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

Chemical and Physical Properties

• Sensitivity: Moisture Sensitive
• Refractive Index: 1.37
• Flash Point(°F): -2.2 °F
• Flash Point(°C): -19 °C
• Boil Point(°C): 86 °C
• Molecular Weight: 147.340 g/mol
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 1
• Rotatable Bond Count: 2
• Exact Mass: 147.066 Da
• Monoisotopic Mass: 147.066 Da
• Topological Polar Surface Area: 9.200 Ų
• Heavy Atom Count: 8
• Formal Charge: 0
• Complexity: 65.300
• 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

XLogP3

References

1. Jingyu Xu, Yuhong Qi, Zhanping Zhang.  (2024)  Effects of 3,3,3-trifluoropropyl content in poly (dimethyl-methylphenyl-methyltrifluoropropyl) siloxane coating on its antifouling performance.  PROGRESS IN ORGANIC COATINGS,      [PMID:] [10.1016/j.porgcoat.2024.108777]

Frequently Asked Questions

What are the CAS number, molecular formula and molecular weight?

The CAS Number is 1438-82-0, the molecular formula is C5H16OSi2, and the molecular weight is 148.35 g/mol. InChIKey XUKFPAQLGOOCNJ-UHFFFAOYSA-N.

What is the purity of this product?

This product is supplied at ≥95% purity (chemical assay). Lot-specific values are stated on the Certificate of Analysis.

How should this product be stored?

Store at room temperature under argon. It is supplied under an argon blanket; reseal under inert gas after each use.

How is this product shipped?

This product ships under standard ambient conditions. No temperature-controlled packaging is required.

What documentation is provided?

Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.