Molekula
TAPS (N-Tris(hydroxymethyl)methyl-3-aminopropanesulfonic 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
TAPS (N-Tris(hydroxymethyl)methyl-3-aminopropanesulfonic acid) is a zwitterionic buffer widely used in biochemical and molecular biology applications, particularly for protein crystallization, electrophoresis, and enzyme assays due to its stable pH over a broad temperature range. It has a CAS number of 29915-38-6, a molecular formula of C7H17NO6S, and a molecular weight of 243.28. Store at ambient conditions with no signal word required. Molekula supplies TAPS 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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100 g — $64.90 per pack
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500 g — $245.80 per pack
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 |
| Identification | Conforms to reference |
| pH | 4.5 - 6.0 (5%) |
| Loss on Drying | ≤1% |
| Assay | 99.0-101.0% |
| Lead (Pb) | ≤0.0005% |
| UV Absorption (280nm) | ≤0.02 |
| UV Absorbance (260nm) | ≤0.04 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 110 °C |
| Acidity | Neutral |
For research use only. Not for human use.
Identification
| Property | Value |
|---|---|
| SKU | 21958982 |
| CAS Number | 29915-38-6 |
| IUPAC Name | 3-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]propane-1-sulfonic acid |
| EC Number | 249-954-1 |
| Molecular Formula | C7H17NO6S |
| Molecular Weight | 243.28 |
| Exact Mass | 243.0777 |
| SMILES | C(CNC(CO)(CO)CO)CS(=O)(=O)O |
| InChIKey | YNLCVAQJIKOXER-UHFFFAOYSA-N |
| InChI | InChI=1S/C7H17NO6S/c9-4-7(5-10,6-11)8-2-1-3-15(12,13)14/h8-11H,1-6H2,(H,12,13,14) |
| PubChem CID | 121591 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29221996 |
| Tariff Code | 2922190090 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P308+313 IF exposed or concerned: Get medical advice/attention
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
- [(2-Hydroxy-1,1-bis(hydroxymethyl)ethyl)amino]-1-propanesulfonic acid
- 1-Propanesulfonic acid, 3-((2-hydroxy-1,1-bis(hydroxymethyl)ethyl)amino)-
- 3-((1,3-Dihydroxy-2-(hydroxymethyl)propan-2-yl)amino)propane-1-sulfonic acid
- 3-((2-Hydroxy-1,1-bis(hydroxymethyl)ethyl)amino)-1-propanesulfonic acid
- 3-(Tris(hydroxymethyl)methylamino)-1-propanesulfonic acid
- 3-(Tris(hydroxymethyl)methylamino)propane-1-sulphonic acid
- N-[Tris(hydroxymethyl)methyl]-3-aminopropanesulfonic acid
- TAPS
- Taps cpd
- tris(hydroxymethyl)methylaminopropanesulfonic acid
Frequently asked questions
What is TAPS (N-Tris(hydroxymethyl)methyl-3-aminopropanesulfonic acid) used for?
TAPS is commonly used as a buffering agent in biochemical and molecular biology applications, particularly in protein crystallization, electrophoresis, and enzyme assays due to its stable pH over a range of 7.0–9.0.
What is the chemical formula and molecular weight of TAPS?
The chemical formula is **C₇H₁₇NO₆S**, and the molecular weight is **243.28 g/mol**.
How should TAPS be stored?
Store TAPS at **ambient temperature** in a tightly sealed container, away from moisture and strong oxidizing agents.
What grade of TAPS does Molekula supply?
Molekula supplies **analytical and biochemical-grade TAPS**, suitable for high-purity applications in research and development.
Can Molekula supply TAPS in bulk quantities?
Yes, Molekula can provide TAPS in bulk, with quantities customized to meet your specific research or industrial needs.
What documentation comes with a TAPS order?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
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.