Trimethyl borate - for synthesis , CAS No.121-43-7

CAS: 121-43-7 Cat. No.: T431603 Summenformel: C3H9BO3 Molekulargewicht: 103.91 Beilstein Registry Number: 1697939 EG-Nummer: 204-468-9
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GRADE & PURITY for Synthesis ? Synthesis grade — practical purity for chemical synthesis and preparative work. Use as a cost-effective reagent when analytical purity isn't required.
Synonyms
CHEBI:38913 | Trimethyl borate-11B | Boric acid (H3BO3), trimethyl ester | trimethoxy borane | Trimethoxyborane | Urea,N-(cyclohexylmethyl)-N'-cyclopentyl- | trimethyl boric acid | Borester O | MFCD00008346 | Methyl borate | Trimethylborate
Storage
Room temperature,Argon charged,Desiccated
Shipped In
FedEx DG Service
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Size
Deutschland (EU)
USA*
Price
Qty
250ml
T431603-250ml
—
4 Auf Lager

25,08€

30,28€
Speichern 5,21 € (17.19%)
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Why this grade

for synthesis zur Synthese for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature,Argon charged,Desiccated Ships FedEx DG Service 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 26 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyme
CHEBI:38913 | Trimethyl borate-11B | Boric acid (H3BO3), trimethyl ester | trimethoxy borane | Trimethoxyborane | Urea,N-(cyclohexylmethyl)-N'-cyclopentyl- | trimethyl boric acid | Borester O | MFCD00008346 | Methyl borate | Trimethylborate
Spezifikationen & Reinheit
for synthesis
Storage
Room temperature,Argon charged,Desiccated
Verschickt in
FedEx DG Service
Note
zur Synthese
Namen und Kennungen
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/504751685
Kanonisches Lächeln
B(OC)(OC)OC
IUPAC Name
trimethyl borate
InChIKey
WRECIMRULFAWHA-UHFFFAOYSA-N
INCHI
1S/C3H9BO3/c1-5-4(6-2)7-3/h1-3H3
Isomere SMILES
B(OC)(OC)OC
WGK Deutschland
1
RTECS
ED5600000
UN-Nummer
2416
Verpackungsgruppe
II
Molekulargewicht
103.91
Beilstein
1697939
Reaxy-Rn
1697939

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
SuperclassOrganic oxygen compounds
KlasseOrganic oxoanionic compounds
SubclassNot available
Intermediate Tree Nodes Not available
Direct ParentOrganic oxoanionic compounds
Alternative Parents Organic metalloid salts  Organooxygen compounds  Hydrocarbon derivatives  
Molecular FrameworkAliphatic acyclic compounds
Substituents Organic borate - Organic metalloid salt - Hydrocarbon derivative - Organic salt - Organooxygen compound - Aliphatic acyclic compound
BeschreibungThis compound belongs to the class of organic compounds known as organic oxoanionic compounds. These are organic compounds containing an oxoanion.
External Descriptors borate esters
3D-Struktur
Interaktives chemisches Strukturmodell





Zertifikate (CoA, COO, BSE/TSE und Analyse-Diagramm)
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.

14 results found

Lot NumberCertificate TypeDatumArtikel
F2617015Certificate of AnalysisJul 17, 2025 T431603
H2528561Certificate of AnalysisJul 17, 2025 T431603
H2528562Certificate of AnalysisJul 17, 2025 T431603
H2528697Certificate of AnalysisJul 17, 2025 T431603
A2513290Certificate of AnalysisJan 06, 2025 T431603
A2513291Certificate of AnalysisJan 06, 2025 T431603
C2413079Certificate of AnalysisApr 06, 2023 T431603
E23151024Certificate of AnalysisApr 06, 2023 T431603
E23151025Certificate of AnalysisApr 06, 2023 T431603
E23151026Certificate of AnalysisApr 06, 2023 T431603
E2315750Certificate of AnalysisApr 06, 2023 T431603
E2315993Certificate of AnalysisApr 06, 2023 T431603
I2412053Certificate of AnalysisApr 06, 2023 T431603
L2327060Certificate of AnalysisApr 06, 2023 T431603
Chemische und physikalische Eigenschaften
LöslichkeitMiscible with tetrahydrofuran, ether, isoporpylamine, hexane and methanol
EmpfindlichkeitMoisture sensitive
Brechungsindex1.3562-1.3582
Flammpunkt (°F)17.6 °F
Flammpunkt (°C)-8℃
Siedepunkt (°C)67-69°C
Schmelzpunkt (°C)-29°C
Molekulargewicht103.920 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count3
Rotatable Bond Count3
Exact Mass104.064 Da
Monoisotopic Mass104.064 Da
Topological Polar Surface Area27.700 Ų
Heavy Atom Count7
Formal Charge0
Complexity31.700
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
FAQs und Artikel
Citations of This Product
Lösungsrechner
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