(-)-norephedrine
Also known as: (-)-Norephedrine, l-Norephedrine, L-(-)-Norephedrine, (1R,2S)-(-)-norephedrine, (1R,2S)-2-amino-1-phenyl-1-propanol, (-)-Phenylpropanolamine, l-Phenylpropanolamine, Mydriatin
(-)-norephedrine (CAS 492-41-1) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C9H13NO and a molecular weight of 151.206 g/mol. Key properties include a melting point of 51-53 °C(lit.), a boiling point of 288.1±20.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 128.1±21.8 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 492-41-1
- Jingsj CID
- J-1993364-3
- Molecular Formula
- C9H13NO
- Molecular Weight
- 151.206 g/mol
- Category
- Organic Bases
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 51-53 °C(lit.) |
|---|---|
| Boiling Point | 288.1±20.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 128.1±21.8 °C |
| Exact Mass | 151.099716 |
| PSA | 46.25000 |
| LogP | 0.81 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.558 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2939440000 |
|---|
Frequently Asked Questions
What is the CAS number of (-)-norephedrine?
The CAS number of (-)-norephedrine is 492-41-1.
What are the molecular formula and molecular weight of (-)-norephedrine?
(-)-norephedrine has molecular formula C9H13NO and molecular weight 151.206 g/mol.
Is (-)-norephedrine hazardous?
(-)-norephedrine has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of (-)-norephedrine?
For (-)-norephedrine, Upstream Products: Benzaldehyde, Benzylamine; Downstream Products: (S)-(+)-1-Methyl-3-phenylpropylamine, (S)-2-Aminooctane, (1R,2S)-2-[N-Benzyl-N-(mesitylenesulfonyl)amino]-1-phenyl-1-propanol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "(-)-norephedrine (CAS 492-41-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1993364-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.