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(+)-N-Methylephedrine

Also known as: (1S,2R)-(+)-N-Methylephedrine, d-N-Methylephedrine, L-(+)-erythro-N-Methylephedrine, (1S,2R)-2-Dimethylamino-1-phenylpropanol, (+)-(1S,2R)-2-Dimethylamino-1-phenylpropanol, Benzenemethanol, α-[(1R)-1-(dimethylamino)ethyl]-, (αS)-

(+)-N-Methylephedrine (CAS 42151-56-4) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C11H17NO and a molecular weight of 179.25900 g/mol. Key properties include a melting point of 87-90ºC(lit.), a boiling point of 251.3ºC at 760 mmHg, a density of 1.009 g/cm3 and a flash point of 96.9ºC. 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.
42151-56-4
Jingsj CID
J-10835-0
Molecular Formula
C11H17NO
Molecular Weight
179.25900 g/mol
Category
Organic Bases
Last updated
8/21/2026
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Physicochemical Properties

Melting Point87-90ºC(lit.)
Boiling Point251.3ºC at 760 mmHg
Density1.009 g/cm3
Flash Point96.9ºC
Exact Mass179.13100
PSA23.47000
LogP1.67010
Refractive Index1.5320 (estimate)

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Frequently Asked Questions

What is the CAS number of (+)-N-Methylephedrine?

The CAS number of (+)-N-Methylephedrine is 42151-56-4.

What are the molecular formula and molecular weight of (+)-N-Methylephedrine?

(+)-N-Methylephedrine has molecular formula C11H17NO and molecular weight 179.25900 g/mol.

Is (+)-N-Methylephedrine hazardous?

(+)-N-Methylephedrine 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 (+)-N-Methylephedrine?

For (+)-N-Methylephedrine, Downstream Products: (1S,2S)-(-)-1-Phenylpropylene oxide, (1R,2R)-(+)-1-Phenylpropylene oxide.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "(+)-N-Methylephedrine (CAS 42151-56-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-10835-0 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.