Molekula
TES (N-(Tris(hydroxymethyl)methyl)-2-aminoethanesulfonic acid)
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
TES (N-(Tris(hydroxymethyl)methyl)-2-aminoethanesulfonic acid) is a zwitterionic buffer commonly used in biochemical and molecular biology applications, particularly in electrophoresis and enzyme assays. It provides stable pH buffering in the range of 7.0 to 9.0. CAS: 7365-44-8, Molecular Formula: C6H15NO6S, Molecular Weight: 229.25, Storage: Ambient, Signal Word: None. Molekula supplies TES 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.
-
100 g — £52.90 per pack ex VAT · £63.48 inc. VAT
-
500 g — £217.20 per pack ex VAT · £260.64 inc. VAT
Need a different quantity or pack?
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 crystalline powder |
| Water | ≤1.0% |
| Heavy metals | ≤5ppm |
| pH | 3.5 - 5 |
| Residue on Ignition | ≤0.1% |
| Assay (Titration) | ≥99.0% |
| Identification (IR) | Conforms to reference |
| Solubility 10% in water | Clear, colourless solution |
| A260 (1M aq) | ≤0.050 |
| A280 (1M water ) | ≤0.040 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 17596980 |
| CAS Number | 7365-44-8 |
| IUPAC Name | 2-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]ethanesulfonic acid |
| EC Number | 230-906-3 |
| Molecular Formula | C6H15NO6S |
| Molecular Weight | 229.25 |
| Exact Mass | 229.062 |
| SMILES | C(CS(=O)(=O)O)NC(CO)(CO)CO |
| InChIKey | JOCBASBOOFNAJA-UHFFFAOYSA-N |
| InChI | InChI=1S/C6H15NO6S/c8-3-6(4-9,5-10)7-1-2-14(11,12)13/h7-10H,1-5H2,(H,11,12,13) |
| PubChem CID | 81831 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29221996 |
| Tariff Code | 2922190090 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Safety Data Sheets (SDS)
Available in English, Finnish, French, German, Italian, Portuguese, 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
- 2-(2-HYDROXY-1,1-DIHYDROXYMETHYL-ETHYLAMINO)-ETHANESULFONIC ACID
- 2-(Tris(hydroxymethyl)methylamino)ethane-1-sulphonic acid
- 2-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]ethanesulfonic acid
- 2-[[2-hydroxy-1,1-bis(hydroxymethyl)ethyl]amino]ethanesulfonic acid
- 2-[Tris(hydroxymethyl)methylamino]-1-ethanesulfonic acid
- ethanesulfonic acid, 2-[[2-hydroxy-1,1-bis(hydroxymethyl)ethyl]amino]-
- N-tri(hydroxymethyl)methyltaurine
- N-Tris(hydroxymethyl)methyl-2-aminoethanesulfonic acid
- TES
- TES buffer
Frequently asked questions
What is TES used for?
TES is primarily used as a buffering agent in biochemical and molecular biology applications, especially in electrophoresis and enzyme assays.
What is the chemical formula and molecular weight of TES?
The formula of TES is C6H15NO6S with a molecular weight of 229.25 g/mol.
How should TES be stored?
TES should be stored at ambient temperature, protected from moisture and light.
What grade of TES is available?
Molekula supplies TES in high-purity grade suitable for research and laboratory use.
Can Molekula supply TES in bulk?
Yes, Molekula can supply TES in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a TES 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.