Molekula
3-Amino-1-propanesulfonic 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
3-Amino-1-propanesulfonic acid, also known as homotaurine or tramiprosate, is an amino sulfonic acid used mainly in pharmacological and neuroscience research. It acts as a GABA agonist with documented anticonvulsant and nootropic activity. It has also been investigated as an anti-amyloid agent for Alzheimer's disease under the name Alzhemed. This chemical has a CAS number of 3687-18-1, with the molecular formula H2N(CH2)3SO3H and a molecular weight of 139.17 g/mol. It should be stored at ambient conditions. The product carries a signal word of *Warning* as per safety classifications. Molekula supplies 3-Amino-1-propanesulfonic acid 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
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Prices exclude VAT/sales tax and shipping.
Specifications
Specifications available on request — see Documents below or contact our sales team.
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 25411528 |
| CAS Number | 3687-18-1 |
| IUPAC Name | 3-aminopropane-1-sulfonic acid |
| EC Number | 222-977-4 |
| Molecular Formula | H2N(CH2)3SO3H |
| Molecular Weight | 139.17 |
| Exact Mass | 139.0303 |
| SMILES | C(CN)CS(=O)(=O)O |
| InChIKey | SNKZJIOFVMKAOJ-UHFFFAOYSA-N |
| InChI | InChI=1S/C3H9NO3S/c4-2-1-3-8(5,6)7/h1-4H2,(H,5,6,7) |
| PubChem CID | 1646 |
| REACH Code | Y110 |
| Tariff Code | 2929900090 |
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
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, 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, 3-amino-
- 3-aminopropanesulfonic acid
- 3-aminopropanesulphonic acid
- 3-aminopropylsulfonic acid
- 3APS
- Alzhemed
- Homotaurine
- Tramiprosate
- Tramiprosato
- tramiprosatum
Frequently asked questions
What is 3-Amino-1-propanesulfonic acid (APS) commonly used for?
3-Amino-1-propanesulfonic acid (homotaurine) is primarily used in pharmacological research as a GABA agonist with anticonvulsant and nootropic activity. It is also used in Alzheimer's disease research as an anti-amyloid agent, where it was investigated clinically as tramiprosate (Alzhemed).
What is the chemical formula and molecular weight of 3-Amino-1-propanesulfonic acid?
The chemical formula is **H₂N(CH₂)₃SO₃H**, and the molecular weight is **139.17 g/mol**.
How should 3-Amino-1-propanesulfonic acid be stored?
Store at **ambient temperature** in a tightly sealed container, away from moisture and strong oxidizing agents.
What purity grades of 3-Amino-1-propanesulfonic acid does Molekula supply?
Molekula supplies **biochemical grade** (typically ≥98% purity) for research and laboratory applications.
Can Molekula supply 3-Amino-1-propanesulfonic acid in bulk quantities?
Yes, bulk quantities are available upon request—contact our sales team for pricing and lead times.
What documentation is provided with an order of 3-Amino-1-propanesulfonic acid?
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.