Molekula
Tetramethylammonium hydrogen sulfate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Tetramethylammonium hydrogen sulfate is a quaternary ammonium salt used as a phase-transfer catalyst and reagent in organic synthesis. It appears as a white crystalline solid, stable at ambient temperatures, and carries the signal word Warning as it causes skin and serious eye irritation and may cause respiratory irritation. CAS: 80526-82-5, Molecular Formula: (CH3)4N(HSO4), Molecular Weight: 171.22 g/mol. Molekula supplies Tetramethylammonium hydrogen sulfate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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5 g — £30.90 per pack ex VAT · £37.08 inc. VAT
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25 g — £99.60 per pack ex VAT · £119.52 inc. VAT
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White to off white crystalline powder |
| Identification | Conforms to reference |
| Purity | ≥ 99.0% (titration) |
| Moisture | ≤ 5.0% |
| Elemental Analysis | Carbon |
| Suitability | Suitable for HPLC |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 27719041 |
| CAS Number | 80526-82-5 |
| IUPAC Name | hydrogen sulfate;tetramethylazanium |
| EC Number | 279-490-5 |
| Molecular Formula | (CH3)4N(HSO4) |
| Molecular Weight | 171.22 |
| Exact Mass | 171.0565 |
| SMILES | C[N+](C)(C)C.OS(=O)(=O)[O-] |
| InChIKey | DWTYPCUOWWOADE-UHFFFAOYSA-M |
| InChI | InChI=1S/C4H12N.H2O4S/c2*1-5(2,3)4/h1-4H3;(H2,1,2,3,4)/q+1;/p-1 |
| PubChem CID | 157340 |
| REACH Code | Y113 |
| HTS Code | 29239001 |
| Tariff Code | 2923900090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Russian, Spanish.
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.
Synonyms
- hydrogen sulfate;tetramethylammonium
- hydrogen sulfate;tetramethylazanium
- Methanaminium, N,N,N-trimethyl-, sulfate (1:1)
- N,N,N-Trimethylmethanaminium hydrogen sulfate
- Tetramethylammonium bisulfate
- Tetramethylammonium hydrogen sulphate
- Tetramethylammonium hydrogensulfate (for ion pair chromatography)
- Tetramethylammoniumbisulfate hydrate
- tetramethylazanium hydrogen sulfate
Frequently asked questions
What is tetramethylammonium hydrogen sulfate used for?
It is commonly used as a phase-transfer catalyst and in organic synthesis, particularly in reactions requiring strong basic conditions or efficient ion transfer.
What is the chemical formula and molecular weight?
The formula is (CH3)4N(HSO4) with a molecular weight of 171.22 g/mol.
How should tetramethylammonium hydrogen sulfate be stored?
It should be stored at ambient temperature, protected from moisture and heat.
What grade is available?
Available in high-purity grade suitable for laboratory and industrial applications.
Can Molekula supply it in bulk?
Yes, Molekula can supply tetramethylammonium hydrogen sulfate in bulk quantities upon request.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.