Karstedt Catalyst Solution - 0.1 M in poly(dimethylsiloxane), vinyl terminated , CAS No.68478-92-2

CAS: 68478-92-2 Cat. No.: K131673 Formula: O[Si(CH3)2CH=CH2]2Pt Molecular Weight: 381.48 EC Number: 270-844-4
AVAILABLE TO ORDER
GRADE & PURITY 0.1 M in poly(dimethylsiloxane), vinyl terminated
Synonyms
Karstedt′s catalyst | Platinum(0) 1,3-diethenyl-1,1,3,3-tetramethyldisiloxane complexes
Storage
Room temperature,Argon charged
Shipped In
Normal
★
Size
Germany (EU)
USA*
Price
Qty
1g
K131673-1g
—
5 In stock

€28.55

€43.30
Save €14.75 (34.07%)
5g
K131673-5g
—
3 In stock
€130.07
25g
K131673-25g
7 In stock
In stock ≥10
€425.11
100g
K131673-100g
Made to order · 8–12 wks
€1,188.72
Enter a quantity for the sizes you want to add.
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Why this grade

0.1 M in poly(dimethylsiloxane), vinyl terminated 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 70 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

A powerful hydrosilylation catalyst for preparation of trans-β-silanes. Hydrosilylation Catalysts


Product class
PGM Solutions, M-C, Homogeneous Catalysts, Diene/Dienyl Ligands, Vinylsiloxane Ligands, Vinylsiloxane Solutions

Reaction type
Hydrosilylation

Chemical properties

Chemical formula

C24H54O3Si6Pt2

Empirical formula

Pt(vs)hc


Metal

Pt

Theoretical metal content

21

Physical state

liquid

Color

light yellow

Specifications

Synonyms
Karstedt′s catalyst | Platinum(0) 1,3-diethenyl-1,1,3,3-tetramethyldisiloxane complexes
Specifications & Purity
0.1 M in poly(dimethylsiloxane), vinyl terminated
Biochemical and Physiological Mechanisms
高效铂金催化剂在硅橡胶硫化过程中可以在低温下迅速进行,且无副产物,不变色,在硅氢加成反应中反应迅速。
Storage
Room temperature,Argon charged
Shipped In
Normal
Names and Identifiers
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/504765789
Canonical Smiles
C[Si](C)(C=C)O[Si](C)(C)C=C.[Pt]
IUPAC Name
ethenyl-[ethenyl(dimethyl)silyl]oxy-dimethylsilane;platinum
InChIKey
RCNRJBWHLARWRP-UHFFFAOYSA-N
INCHI
1S/C8H18OSi2.Pt/c1-7-10(3,4)9-11(5,6)8-2;/h7-8H,1-2H2,3-6H3;
Isomeric SMILES
C[Si](C)(C=C)O[Si](C)(C)C=C.[Pt]
WGK Germany
3
Molecular Weight
381.48
Reaxy-Rn
11327506
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=11327506&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
SuperclassOrganometallic compounds
ClassOrganometalloid compounds
SubclassOrganosilicon compounds
Intermediate Tree Nodes Siloxanes
Direct ParentDisiloxanes
Alternative Parents Organoheterosilanes  Organic transition metal salts  Organic metalloid salts  Organic oxygen compounds  Hydrocarbon derivatives  
Molecular FrameworkAliphatic acyclic compounds
Substituents Disiloxane - Organoheterosilane - Organic metalloid salt - Organic transition metal salt - Organic oxygen compound - Hydrocarbon derivative - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as disiloxanes. These are organosilicon compounds with the general formula H[Si](R)(R')O[Si](H)(R'')R''' (R= organyl, R'-R'''= H or organyl).
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.

28 results found

Lot NumberCertificate TypeDateItem
H2605417H2605417Certificate of AnalysisJul 27, 2026 K131673
H2605418H2605418Certificate of AnalysisJul 27, 2026 K131673
H2605419H2605419Certificate of AnalysisJul 27, 2026 K131673
H2605421H2605421Certificate of AnalysisJul 27, 2026 K131673
H2505374H2505374Certificate of AnalysisMay 29, 2025 K131673
H2505373H2505373Certificate of AnalysisMay 29, 2025 K131673
H2505372H2505372Certificate of AnalysisMay 29, 2025 K131673
E2613028E2613028Certificate of AnalysisMay 29, 2025 K131673
C2528422C2528422Certificate of AnalysisMar 14, 2025 K131673
C2528425C2528425Certificate of AnalysisMar 14, 2025 K131673
C2528429C2528429Certificate of AnalysisMar 14, 2025 K131673
L2412670L2412670Certificate of AnalysisNov 28, 2024 K131673
L2412668L2412668Certificate of AnalysisNov 28, 2024 K131673
L2412669L2412669Certificate of AnalysisNov 28, 2024 K131673
J2409595J2409595Certificate of AnalysisSep 23, 2024 K131673
J2409596J2409596Certificate of AnalysisSep 23, 2024 K131673
J2409597J2409597Certificate of AnalysisSep 23, 2024 K131673
G2431268G2431268Certificate of AnalysisJul 17, 2024 K131673
G2431267G2431267Certificate of AnalysisJul 17, 2024 K131673
G2431266G2431266Certificate of AnalysisJul 17, 2024 K131673
E2417243E2417243Certificate of AnalysisMay 09, 2024 K131673
E2417218E2417218Certificate of AnalysisMay 09, 2024 K131673
E2417217E2417217Certificate of AnalysisMay 09, 2024 K131673
C2409313C2409313Certificate of AnalysisFeb 29, 2024 K131673
C2409311C2409311Certificate of AnalysisFeb 29, 2024 K131673
A2409348A2409348Certificate of AnalysisDec 23, 2023 K131673
A2409350A2409350Certificate of AnalysisDec 23, 2023 K131673
A2409349A2409349Certificate of AnalysisDec 23, 2023 K131673
Chemical and Physical Properties
SolubilityMiscible with toluene, xylene, isopropyl alcohol, double-vinyl silicone oil and vinyl terminated poly(dimethylsiloxane). Immiscible with water.
SensitivityMoisture sensitive;Air sensitive;Heat sensitive
x_flash_point_drop_centigrade28 °C
x_boil_point_char138 °C
x_melt_point_char12-13 °C
Molecular Weight381.480 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count1
Rotatable Bond Count4
Exact Mass381.054 Da
Monoisotopic Mass381.054 Da
Topological Polar Surface Area9.200 Ų
Heavy Atom Count12
Formal Charge0
Complexity143.000
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 Count2
FAQs and Articles
Citations of This Product
Solution Calculators
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