Diphenylsilanediol (DPSD) - ≥98% , CAS No.947-42-2

CAS: 947-42-2 Cat. No.: D154568 Formula: C12H12O2Si Molecular Weight: 216.31 Beilstein Registry Number: 2523450 EC Number: 213-427-4
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
STK007426 | Diphenyl Silanediol, 98% | BRN 2523445 | Difenyl-dihydroxysilan | FS-4821 | F0001-2264 | 4-16-00-01523 (Beilstein Handbook Reference) | SCHEMBL49494 | D2316 | diphenylsilandiole | Dihydroxydiphenylsilane | UNII-36X37P8NBB | DTXSID3061340 | D 6
Storage
Room temperature,Argon charged
Shipped In
Normal
★
Size
USA
Germany (EU)*
Price
Qty
25g
D154568-25g
9 In stock
—

$25.90

$38.90
Save $13.00 (33.42%)
100g
D154568-100g
8 In stock
4 In stock

$68.90

$103.90
Save $35.00 (33.69%)
500g
D154568-500g
5 In stock
—

$241.90

$362.90
Save $121.00 (33.34%)
Enter a quantity for the sizes you want to add.
🧪
Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature,Argon charged Ships Normal Check lot-specific COA for exact specifications.

📋

Quality documents

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

📚

Literature proof

Cited in 5 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Diphenylsilanediol(DPSD) is an alkoxysilane that is used as a silane based precusor in the synthesis of organosiloxane based resins.

It may be used to synthesize a nanosized hybrid waveguide material.DPSD may be used as a precursor in the synthesis of linear vinyl oligosiloxane resins which can be potentially used in the fabrication of thermally resistant light emitting diode(LED) encapsulant. Mercaptopropyl-phenyl-oligosiloxane and phenyl-vinyl-oligosiloxane may be synthesized by using DPSD which can further be used as a thiolene derived dielectric layer for organic thin film transistors.

Specifications

Synonyms
STK007426 | Diphenyl Silanediol, 98% | BRN 2523445 | Difenyl-dihydroxysilan | FS-4821 | F0001-2264 | 4-16-00-01523 (Beilstein Handbook Reference) | SCHEMBL49494 | D2316 | diphenylsilandiole | Dihydroxydiphenylsilane | UNII-36X37P8NBB | DTXSID3061340 | D 6
Specifications & Purity
≥98%
Storage
Room temperature,Argon charged
Shipped In
Normal
Purity
≥98%
Names and Identifiers
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/504752482
Canonical Smiles
C1=CC=C(C=C1)[Si](C2=CC=CC=C2)(O)O
IUPAC Name
dihydroxy(diphenyl)silane
InChIKey
OLLFKUHHDPMQFR-UHFFFAOYSA-N
INCHI
1S/C12H12O2Si/c13-15(14,11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10,13-14H
Isomeric SMILES
C1=CC=C(C=C1)[Si](C2=CC=CC=C2)(O)O
WGK Germany
1
RTECS
VV3640000
UN Number
3077
Packing Group
III
Molecular Weight
216.31
Beilstein
2523450
Reaxy-Rn
2523445
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2523445&ln=

Documentation

📋 Safety Data Sheet (SDS)

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

<<<<<<< HEAD Download SDS → ======= Download SDS → >>>>>>> release248-p3

✅ 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
SuperclassBenzenoids
ClassBenzene and substituted derivatives
SubclassNot available
Intermediate Tree Nodes Not available
Direct ParentBenzene and substituted derivatives
Alternative Parents Silanols  Organoheterosilanes  Organic metalloid salts  Organic oxygen compounds  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Monocyclic benzene moiety - Organoheterosilane - Organic metalloid salt - Silanol - Organic oxygen compound - Hydrocarbon derivative - Organic salt - Organosilicon compound - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as benzene and substituted derivatives. These are aromatic compounds containing one monocyclic ring system consisting of benzene.
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.

22 results found

Lot NumberCertificate TypeDateItem
B2207346B2207346Certificate of AnalysisOct 30, 2025 D154568
B2207347B2207347Certificate of AnalysisOct 30, 2025 D154568
B2207348B2207348Certificate of AnalysisOct 30, 2025 D154568
I2517737I2517737Certificate of AnalysisJul 18, 2025 D154568
I2517736I2517736Certificate of AnalysisJul 18, 2025 D154568
I2508217I2508217Certificate of AnalysisJul 18, 2025 D154568
F2610186F2610186Certificate of AnalysisJul 18, 2025 D154568
E2627082E2627082Certificate of AnalysisJul 18, 2025 D154568
C2630056C2630056Certificate of AnalysisJul 18, 2025 D154568
I2402605I2402605Certificate of AnalysisAug 01, 2024 D154568
I2402606I2402606Certificate of AnalysisAug 01, 2024 D154568
E2406106E2406106Certificate of AnalysisMar 26, 2024 D154568
E2409003E2409003Certificate of AnalysisMar 26, 2024 D154568
E2422237E2422237Certificate of AnalysisMar 26, 2024 D154568
E2422240E2422240Certificate of AnalysisMar 26, 2024 D154568
D2422294D2422294Certificate of AnalysisMar 20, 2024 D154568
E2320129E2320129Certificate of AnalysisFeb 13, 2023 D154568
E2320143E2320143Certificate of AnalysisFeb 13, 2023 D154568
E2320150E2320150Certificate of AnalysisFeb 13, 2023 D154568
B1911084B1911084Certificate of AnalysisDec 07, 2022 D154568
B2301302B2301302Certificate of AnalysisDec 21, 2021 D154568
B2207354B2207354Certificate of AnalysisDec 21, 2021 D154568
Chemical and Physical Properties
SolubilityReacts with water.
SensitivityMoisture & Air & Light sensitive
Flash Point(°F)127.4 °F
Flash Point(°C)53 °C
Melt Point(°C)147°C
Molecular Weight216.310 g/mol
XLogP3
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count2
Rotatable Bond Count2
Exact Mass216.061 Da
Monoisotopic Mass216.061 Da
Topological Polar Surface Area40.500 Ų
Heavy Atom Count15
Formal Charge0
Complexity174.000
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
Citations of This Product
Solution Calculators
Reviews

Customer Reviews

Frequently Asked Questions

What is the purity of this product?
This product is supplied at ≥98% 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 are the CAS number, molecular formula and molecular weight?
The CAS Number is 947-42-2, the molecular formula is C12H12O2Si, and the molecular weight is 216.31 g/mol. InChIKey OLLFKUHHDPMQFR-UHFFFAOYSA-N.
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.

Shall we send you a message when we have discounts available?

Remind me later

Thank you! Please check your email inbox to confirm.

Oops! Notifications are disabled.