Molekula

Tetramethylammonium hydroxide pentahydrate

CAS 10424-65-4 (CH3)4N(OH).5H2O MW 181.23 In stock

Tetramethylammonium hydroxide pentahydrate is a strong organic base used in semiconductor manufacturing, organic synthesis, and as a catalyst in various chemical reactions. It is available in aqueous solution with a molecular weight of 181.23 g/mol, CAS number 10424-65-4, and molecular formula (CH3)4N(OH)·5H2O. Store at ambient temperature. Hazardous: signal word Danger. Molekula supplies Tetramethylammonium hydroxide pentahydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

CoA by batch

C[N+](C)(C)C.O.O.O.O.O.[OH-]

Overview

Specifications

Property	Value
Appearance	White solid
Melting Point	67°C - 70°C
Identification	Conforms to reference
Purity	≥99%
Carbonate	≤1%
Alkali content	≥46.5%

Storage & handling

Property	Value
Storage Temperature	Ambient
Transport Class	8
Packing Group	II
Shelf Life	36 months
Acidity	Base

Identification

Property	Value
CAS Number	10424-65-4
Molecular Formula	(CH3)4N(OH).5H2O
Molecular Weight	181.23
SMILES	C[N+](C)(C)C.O.O.O.O.O.[OH-]
EC / UN Number	3423
REACH Code	Y110
HTS Code	29239001
Tariff Code	2923900090

Safety & GHS

Danger

Flammable GHS02
Compressed Gas GHS04
Corrosive GHS05
Toxic GHS06

Hazard statements

H290 May be corrosive to metals
H300 Fatal if swallowed
H310 Fatal in contact with skin
H314 (sub cat. 1B) Causes severe skin burns and eye damage
H370 Causes damage to organs
H372 Causes damage to organs through prolonged or repeated exposure
H411 Toxic to aquatic life with long lasting effects

Precautionary statements

P260 Do not breathe dust/fume/gas/mist/vapours/spray
P280 Wear protective gloves/protective clothing/eye protection/face protection
P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
P310 Immediately call a POISON CENTER or doctor/physician

For research and industrial use only

Not for use in food, drugs, household, or in or on humans or animals. Consult the Safety Data Sheet before handling.

Documents

Certificate of Analysis (CoA) by batch

Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.

Pricing & pack sizes

Pack sizes & pricing

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Pricing on request — packs available from research to bulk quantities.

Prices exclude VAT/sales tax and shipping. Bulk and custom pack sizes available on request.

Synonyms

No alternate names recorded for this product.

Frequently asked questions

What is tetramethylammonium hydroxide pentahydrate used for?

It is primarily used as a strong base in organic synthesis, particularly in the synthesis of quaternary ammonium compounds and as a reagent in the production of semiconductors and pharmaceuticals.

What is the chemical formula and molecular weight?

The formula is (CH3)4N(OH)·5H2O and the molecular weight is 181.23 g/mol.

How should tetramethylammonium hydroxide pentahydrate be stored?

It should be stored at ambient temperature, protected from moisture and direct sunlight, and kept in a tightly sealed container.

What grade is available?

We offer technical grade and reagent grade, suitable for laboratory and industrial applications.

Can Molekula supply this in bulk?

Yes, we can supply tetramethylammonium hydroxide pentahydrate in bulk quantities; please contact our sales team for pricing and availability.

What documentation comes with the order?

Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation can be provided upon request.

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