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

CAS: 947-42-2 Cat. No.: D154568 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
Argon charged,Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
25g
D154568-25g
8

$25.90

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

$68.90

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

$241.90

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

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

🌡

Storage & shipping

Argon charged,Room temperature 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
Argon charged, Room temperature
Shipped In
Normal
Purity
≥98%
Names and Identifiers
Pubchem Sid504752482
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504752482
Canonical SmilesC1=CC=C(C=C1)[Si](C2=CC=CC=C2)(O)O
IUPAC Namedihydroxy(diphenyl)silane
InChIKeyOLLFKUHHDPMQFR-UHFFFAOYSA-N
INCHI1S/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.

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
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
B2207346Certificate of AnalysisOct 30, 2025 D154568
B2207347Certificate of AnalysisOct 30, 2025 D154568
B2207348Certificate of AnalysisOct 30, 2025 D154568
I2517737Certificate of AnalysisJul 18, 2025 D154568
I2517736Certificate of AnalysisJul 18, 2025 D154568
I2508217Certificate of AnalysisJul 18, 2025 D154568
F2610186Certificate of AnalysisJul 18, 2025 D154568
E2627082Certificate of AnalysisJul 18, 2025 D154568
C2630056Certificate of AnalysisJul 18, 2025 D154568
I2402605Certificate of AnalysisAug 01, 2024 D154568
I2402606Certificate of AnalysisAug 01, 2024 D154568
E2406106Certificate of AnalysisMar 26, 2024 D154568
E2409003Certificate of AnalysisMar 26, 2024 D154568
E2422237Certificate of AnalysisMar 26, 2024 D154568
E2422240Certificate of AnalysisMar 26, 2024 D154568
D2422294Certificate of AnalysisMar 20, 2024 D154568
E2320129Certificate of AnalysisFeb 13, 2023 D154568
E2320143Certificate of AnalysisFeb 13, 2023 D154568
E2320150Certificate of AnalysisFeb 13, 2023 D154568
B1911084Certificate of AnalysisDec 07, 2022 D154568
B2301302Certificate of AnalysisDec 21, 2021 D154568
B2207354Certificate of AnalysisDec 21, 2021 D154568

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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
References
1. Yanlu Sun, Zhengqi Wang, Dequn Wu, Xueli Wang, Jianyong Yu, Ruchao Yuan, Faxue Li.  (2023)  Facile preparation of inherently flame-retardant polyamide 6 filaments with enhanced anti-dripping enabled by the synergistic charring effect.  POLYMER DEGRADATION AND STABILITY,      [PMID:] [10.1016/j.polymdegradstab.2023.110458]
2. Shuo Fan, Yanlu Sun, Xueli Wang, Jianyong Yu, Dequn Wu, Faxue Li.  (2020)  A novel organic-inorganic flame retardant of ammonium polyphosphate chemically coated by Schiff base-containing branched polysiloxane for polyamide 6.  POLYMERS FOR ADVANCED TECHNOLOGIES,  31  (11): (2763-2774).  [PMID:] [10.1002/pat.5003]
3. Shuo Fan, Bo Peng, Ruchao Yuan, Dequn Wu, Xueli Wang, Jianyong Yu, Faxue Li.  (2019)  A novel Schiff base-containing branched polysiloxane as a self-crosslinking flame retardant for PA6 with low heat release and excellent anti-dripping performance.  COMPOSITES PART B-ENGINEERING,      [PMID:] [10.1016/j.compositesb.2019.107684]
4. Xiyu Zhang, Aoxiang Ge, Yong Tang, Wei Wei, Xiaojie Li.  (2025)  Facile synthesis of P-functionalized diphenyl-methylvinyl-copolysiloxane for high-performance epoxy thermosets.  EUROPEAN POLYMER JOURNAL,      [PMID:] [10.1016/j.eurpolymj.2025.113903]
5. Lijing Chen, Jianxin Wu, Yuxin Gu, Liang Liu, Yong Li, Xiaofeng Lin, Wenjing Lin, Lei Ji, Yanhong Peng, Guobin Yi.  (2024)  High-performance ZSR/P(MMA/BA) composites with enhanced thermal and excellent water resistance properties.  JOURNAL OF APPLIED POLYMER SCIENCE,      [PMID:] [10.1002/app.55425]
Solution Calculators
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