Molekula
AMPSO (N-(1,1-Dimethyl-2-hydroxyethyl)-3-amino-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
AMPSO is a sulfonic acid derivative used in pharmaceutical and biochemical research as a zwitterionic buffer and stabilizer. It is a white to off-white powder with a molecular weight of 227.28 g/mol, a molecular formula of C7H17NO5S, and a CAS number of 68399-79-1. It is stable at ambient temperatures and has no signal word. Molekula supplies AMPSO 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 — £137.20 per pack ex VAT · £164.64 inc. VAT
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500 g — £467.90 per pack ex VAT · £561.48 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 |
| Melting Point | 215 - 225 °C |
| Loss on Drying | ≤ 1.0% |
| Assay | ≥ 98% |
| pH (1% sol.) | 5.5-6.5 |
| OD260 nm (0.1M aq Solution) | ≤ 0.1 |
| OD280 nm (0.1M aq Solution) | ≤ 0.1 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
Identification
| Property | Value |
|---|---|
| SKU | 17283132 |
| CAS Number | 68399-79-1 |
| IUPAC Name | 2-hydroxy-3-[(1-hydroxy-2-methylpropan-2-yl)amino]propane-1-sulfonic acid |
| EC Number | 269-991-7 |
| Molecular Formula | C7H17NO5S |
| Molecular Weight | 227.28 |
| Exact Mass | 227.0827 |
| SMILES | CC(C)(CO)NCC(CS(=O)(=O)O)O |
| InChIKey | ACERFIHBIWMFOR-UHFFFAOYSA-N |
| InChI | InChI=1S/C7H17NO5S/c1-7(2,5-9)8-3-6(10)4-14(11,12)13/h6,8-10H,3-5H2,1-2H3,(H,11,12,13) |
| PubChem CID | 100211 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2922.19.96.90 |
| Tariff Code | 2922190090 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Safety Data Sheets (SDS)
Available in English, 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
- 1-Propanesulfonic acid, 2-hydroxy-3-((2-hydroxy-1,1-dimethylethyl)amino)-
- 2-Hydroxy-3-((1-hydroxy-2-methylpropan-2-yl)amino)propane-1-sulfonic acid
- 2-hydroxy-3-[(2-hydroxy-1,1-dimethylethyl)amino]-1-propanesulfonic acid
- 2-hydroxy-3-[(2-hydroxy-1,1-dimethylethyl)amino]propanesulphonic acid
- 2-hydroxy-3-[(2-hydroxy-tert-butyl)amino]propanesulfonic acid
- 3-((1,1-Dimethyl-2-hydroxyethyl)amino)-2-hydroxypropanesulfonic acid
- 3-(N-(1,1-Dimethylhydroxyethyl)amino)-2-hydroxy-propanesulfonic acid
- AMPSO
- Ampso 0.2 M buffer solution
- N-(1,1-Dimethyl-2-hydroxyethyl)-3-amino-2-hydroxypropanesulfonic acid
Frequently asked questions
What is AMPSO used for?
AMPSO is a zwitterionic Good's-type biological buffer with a useful pH range of about 8.3 to 9.7. It is primarily used as a buffer in biochemical work, for example in electrophoresis and transfer buffers.
What is the chemical formula and molecular weight of AMPSO?
The formula is C7H17NO5S with a molecular weight of 227.28 g/mol.
How should AMPSO be stored?
AMPSO should be stored at ambient temperature, protected from moisture and direct sunlight.
What grade of AMPSO is available?
Molekula supplies AMPSO in technical grade; custom grades are available upon request.
Can Molekula supply AMPSO in bulk?
Yes, Molekula can supply AMPSO in bulk quantities; please contact sales for pricing and availability.
What documentation comes with an AMPSO order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation is available upon request.
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.