Homotaurine
Also known as: 3-Amino-1-propanesulfonic acid, 3-APS, Tramiprosate, 3-aminopropane-1-sulphonic acid, Alzhemed, 3-aminopropane-1-sulfonic acid, 3-Aminopropanesulfonic acid, 1-Propanesulfonic acid, 3-amino-, MFCD00008225, EINECS 222-977-4
Homotaurine (CAS 3687-18-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C3H9NO3S and a molecular weight of 139.173 g/mol. Key properties include a melting point of 293 °C (dec.)(lit.) and a density of 1.4±0.1 g/cm3. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3687-18-1
- Jingsj CID
- J-1956867-3
- Molecular Formula
- C3H9NO3S
- Molecular Weight
- 139.173 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 293 °C (dec.)(lit.) |
|---|---|
| Density | 1.4±0.1 g/cm3 |
| Exact Mass | 139.030319 |
| PSA | 88.77000 |
| LogP | -2.25 |
| Refractive Index | 1.508 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Additional Information | [1]. Wu S et al. Tramiprosate protects neurons against ischemic stroke by disrupting the interaction between PSD95 and nNOS. Neuropharmacology. 2014 Aug;83:107-17. [2]. Aisen PS et al. Tramiprosate in mild-to-moderate Alzheimer's disease - a randomized, double-blind, placebo-controlled, multi-centre study (the Alphase Study). Arch Med Sci. 2011 Feb;7(1):102-11. |
|---|
Customs & Trade Information
| HS Code | 2921199090 |
|---|---|
| Summary | 2921199090 other acyclic monoamines and their derivatives; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Homotaurine?
The CAS number of Homotaurine is 3687-18-1.
What are the molecular formula and molecular weight of Homotaurine?
Homotaurine has molecular formula C3H9NO3S and molecular weight 139.173 g/mol.
Is Homotaurine hazardous?
Homotaurine has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of Homotaurine?
For Homotaurine, Upstream Products: 3-chloro-2-hydroxypropane-1-sulfonic acid, 1,3-Propanesultone, Azetidine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Homotaurine (CAS 3687-18-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1956867-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.