Tetramethylammonium hydroxide solution - ACS , CAS No.75-59-2

CAS: 75-59-2 Cat. No.: T433624 Formula: C4H13NO Molecular Weight: 91.15 Beilstein Registry Number: 3558708 EC Number: 200-882-9 PubChem CID: 60966
AVAILABLE TO ORDER
GRADE & PURITY ACS ? ACS grade — meets American Chemical Society specifications, the analytical benchmark in the US. Use for analytical and QC work needing ACS-defined purity.
Synonyms
TMAOH | TMAH | N,N,N-trimethyl-methanaminium hydroxide
Storage
Room temperature
Shipped In
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Size
Germany (EU)
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Price
Qty
50ml
T433624-50ml
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2 In stock
€34.62
250ml
T433624-250ml
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Why this grade

ACS ACS for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Room temperature Ships FedEx DG Service 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 389 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
TMAOH | TMAH | N,N,N-trimethyl-methanaminium hydroxide
Specifications & Purity
ACS
Storage
Room temperature
Shipped In
FedEx DG Service
Grade
ACS
Names and Identifiers
Pubchem Sid
Canonical Smiles
C[N+](C)(C)C.[OH-]
IUPAC Name
tetramethylazanium;hydroxide
InChIKey
WGTYBPLFGIVFAS-UHFFFAOYSA-M
INCHI
1S/C4H12N.H2O/c1-5(2,3)4;/h1-4H3;1H2/q+1;/p-1
Isomeric SMILES
C[N+](C)(C)C.[OH-]
PubChem CID
60966
UN Number
1835
Packing Group
II
Molecular Weight
91.15
Beilstein
3558708

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.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic nitrogen compounds
ClassOrganonitrogen compounds
SubclassQuaternary ammonium salts
Intermediate Tree Nodes Not available
Direct ParentTetraalkylammonium salts
Alternative Parents Organopnictogen compounds  Organic salts  Organic oxoanionic compounds  Organic oxides  Hydrocarbon derivatives  Amines  
Molecular FrameworkAliphatic acyclic compounds
Substituents Tetraalkylammonium salt - Organic oxygen compound - Organopnictogen compound - Organic oxide - Hydrocarbon derivative - Organic salt - Organic hydroxide - Amine - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as tetraalkylammonium salts. These are organonitrogen compounds containing a quaternary ammonium substituted with four alkyl chains.
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.

8 results found

Lot NumberCertificate TypeDateItem
I2609423Certificate of AnalysisSep 10, 2026 T433624
G2601667Certificate of AnalysisJul 02, 2026 T433624
K2519740Certificate of AnalysisDec 03, 2025 T433624
K2415661Certificate of AnalysisNov 20, 2024 T433624
K2407623Certificate of AnalysisNov 12, 2024 T433624
G2405555Certificate of AnalysisJun 28, 2024 T433624
G2405556Certificate of AnalysisJun 28, 2024 T433624
G2405557Certificate of AnalysisJun 28, 2024 T433624
Chemical and Physical Properties
Refractive Index1.3806
Flash Point(°C)>100°C
Boil Point(°C)100°C
Molecular Weight91.150 g/mol
XLogP3
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count1
Rotatable Bond Count0
Exact Mass91.0997 Da
Monoisotopic Mass91.0997 Da
Topological Polar Surface Area1.000 Ų
Heavy Atom Count6
Formal Charge0
Complexity19.100
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
Documents & Articles
Citations of This Product
Solution Calculators
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