Molekula
HEPPSO (4-(2-Hydroxyethyl)piperazine-1-(2-hydroxypropanesulfonic 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
HEPPSO (4-(2-Hydroxyethyl)piperazine-1-(2-hydroxypropanesulfonic acid)) is a zwitterionic buffering agent used in biochemical and molecular biology applications requiring stable pH control. It has a CAS number of 68399-78-0, a molecular formula of C9H20N2O5S, and a molecular weight of 268.33 g/mol. It is stable at ambient storage conditions and classified as Danger. Molekula supplies HEPPSO 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 — £116.70 per pack ex VAT · £140.04 inc. VAT
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500 g — £442.60 per pack ex VAT · £531.12 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 powder |
| pH | 5.0 - 6.0 |
| Assay (Titration) | ≥99% |
| Identification (IR) | Complies |
| Solubility (0.1M aq.) | Clear, Colourless Solution |
| A260 (0.1M aq.) | ≤0.040 |
| A280 (0.1M aq.) | ≤0.020 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 44974537 |
| CAS Number | 68399-78-0 |
| IUPAC Name | 2-hydroxy-3-[4-(2-hydroxyethyl)piperazin-1-yl]propane-1-sulfonic acid |
| EC Number | 269-990-1 |
| Molecular Formula | C9H20N2O5S |
| Molecular Weight | 268.33 |
| Exact Mass | 268.1093 |
| SMILES | C1CN(CCN1CCO)CC(CS(=O)(=O)O)O |
| InChIKey | GIZQLVPDAOBAFN-UHFFFAOYSA-N |
| InChI | InChI=1S/C9H20N2O5S/c12-6-5-10-1-3-11(4-2-10)7-9(13)8-17(14,15)16/h9,12-13H,1-8H2,(H,14,15,16) |
| PubChem CID | 100205 |
| UN Number | UN2811 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2933.59.9500 |
| Tariff Code | 2933599590 |
Safety & GHS
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Toxic
GHS06
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Health Hazard
GHS07
Hazard statements
- H301 Toxic if swallowed
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
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
- 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, English (US), French, German, Italian, Portuguese, 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
- 1-Piperazinepropanesulfonic acid, .beta.-hydroxy-4-(2-hydroxyethyl)-
- 2-Hydroxy-3-[4-(2-hydroxyethyl)-1-piperazinyl]propane-1-sulfonic Acid
- 2-hydroxy-3-[4-(2-hydroxyethyl)piperazin-1-yl]propane-1-sulfonic acid
- 3-[4-(2-Hydroxyethyl)-1-piperazinyl]-2-hydroxypropanesulfonic Acid
- 4-(2-Hydroxyethyl)piperazine-1-(2-hydroxypropane sulfonic acid)Free Acid
- 4-(2-Hydroxyethyl)piperazine-1-(2-hydroxypropane-3-sulfonic Acid)
- beta-hydroxy-4-(2-hydroxyethyl)-1-piperazinepropanesulfonic acid
- beta-Hydroxy-4-(2-hydroxyethyl)piperazine-1-propanesulphonic acid
- HEPPSO
- N-(Hydroxyethyl)piperazine-N'-2-hydroxypropanesulfonic acid
Frequently asked questions
What is HEPPSO used for?
HEPPSO is primarily used as a zwitterionic buffer in biochemical and biotechnological applications, particularly in protein purification and electrophoresis.
What is the chemical formula and molecular weight of HEPPSO?
The formula is C9H20N2O5S with a molecular weight of 268.33 g/mol.
How should HEPPSO be stored?
HEPPSO should be stored at ambient temperature, protected from moisture and light.
What grade of HEPPSO is available from Molekula?
Molekula supplies HEPPSO in high-purity grade suitable for research and laboratory use.
Can Molekula supply HEPPSO in bulk quantities?
Yes, Molekula can supply HEPPSO in bulk quantities—please contact our sales team for volume pricing and availability.
What documentation comes with an order of HEPPSO?
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.