Hydroxy-(Hydroxy-Dimethylsilyl)Oxy-Dimethylsilane - ≥96% , CAS No.1118-15-6

CAS: 1118-15-6 Cat. No.: B299770 Molecular Weight: 166.32
AVAILABLE TO ORDER
GRADE & PURITY ≥96%
Synonyms
Tetramethyldisiloxane-1,3-diol | [(HYDROXYDIMETHYLSILYL)OXY]DIMETHYLSILANOL | 1,3-Disiloxanediol, tetramethyl- | DTXSID8061505 | AKOS016362663 | 1,3-Dihydroxy-1,1,3,3-tetramethyl-1,3-disiloxane | 1,3-Disiloxanediol, 1,1,3,3-tetramethyl- | 1,1,3,3-Tetramet
Storage
Protected from light,Store at -20°C
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
50mg
B299770-50mg
3
$39.90
250mg
B299770-250mg
1-2 wks(?)
Item is derived from our semi-finished stock and is processed in 1-2 weeks.
$185.90
1g
B299770-1g
2
$474.90
Enter a quantity for the sizes you want to add.
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Why this grade

≥96% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Protected from light,Store at -20°C Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
Tetramethyldisiloxane-1, 3-diol | [(HYDROXYDIMETHYLSILYL)OXY]DIMETHYLSILANOL | 1, 3-Disiloxanediol, tetramethyl- | DTXSID8061505 | AKOS016362663 | 1, 3-Dihydroxy-1, 1, 3, 3-tetramethyl-1, 3-disiloxane | 1, 3-Disiloxanediol, 1, 1, 3, 3-tetramethyl- | 1, 1, 3, 3-Tetramet
Specifications & Purity
≥96%
Storage
Protected from light, Store at -20°C
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥96%
Names and Identifiers
Pubchem Sid488184569
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488184569
Canonical SmilesC[Si](C)(O)O[Si](C)(C)O
IUPAC Namehydroxy-[hydroxy(dimethyl)silyl]oxy-dimethylsilane
InChIKeyPFEAZKFNWPIFCV-UHFFFAOYSA-N
INCHI1S/C4H14O3Si2/c1-8(2,5)7-9(3,4)6/h5-6H,1-4H3
Isomeric SMILES C[Si](C)(O)O[Si](C)(C)O
Molecular Weight 166.32
Reaxy-Rn 1740991
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1740991&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganometallic compounds
ClassOrganometalloid compounds
SubclassOrganosilicon compounds
Intermediate Tree Nodes Not available
Direct ParentSiloxanes
Alternative Parents Silanols  Organoheterosilanes  Organic metalloid salts  Organic oxygen compounds  Hydrocarbon derivatives  
Molecular FrameworkAliphatic acyclic compounds
Substituents Siloxane - Organoheterosilane - Organic metalloid salt - Silanol - Organic oxygen compound - Hydrocarbon derivative - Organic salt - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as siloxanes. These are saturated silicon-oxygen hydrides with unbranched or branched chains of alternating silicon and oxygen atoms (each silicon atom is separated from its nearest silicon neighbours by single oxygen atoms). The general structure of unbranched siloxanes is H3Si[OSiH2]nOSiH3. H3Si[OSiH2]nOSiH[OSiH2OSiH3]2 is an example of a branched siloxane. By extension hydrocarbyl derivatives are commonly included.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

13 results found

Lot NumberCertificate TypeDateItem
J2022086Certificate of AnalysisFeb 05, 2026 B299770
I2517197Certificate of AnalysisAug 27, 2025 B299770
I2517198Certificate of AnalysisAug 27, 2025 B299770
I2517199Certificate of AnalysisAug 27, 2025 B299770
E2308259Certificate of AnalysisFeb 07, 2025 B299770
E2308410Certificate of AnalysisFeb 07, 2025 B299770
E2308411Certificate of AnalysisFeb 07, 2025 B299770
E2308414Certificate of AnalysisFeb 07, 2025 B299770
E2308415Certificate of AnalysisFeb 07, 2025 B299770
E2308425Certificate of AnalysisFeb 07, 2025 B299770
K2125914Certificate of AnalysisSep 12, 2023 B299770
K2125913Certificate of AnalysisSep 12, 2023 B299770
J2022087Certificate of AnalysisAug 12, 2022 B299770

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Chemical and Physical Properties
SensitivityLight sensitive
Molecular Weight166.320 g/mol
XLogP3
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count3
Rotatable Bond Count2
Exact Mass166.048 Da
Monoisotopic Mass166.048 Da
Topological Polar Surface Area49.700 Ų
Heavy Atom Count9
Formal Charge0
Complexity90.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Solution Calculators
Reviews

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