All Photos(4)

287636

Sigma-Aldrich

(1S,2S)-(+)-Pseudoephedrine

98%

Synonym(s):
d-Pseudoephedrine, (+)-Pseudoephedrine, (+)-ψ-Ephedrine, (1S,2S)-2-Methylamino-1-phenyl-1-propanol, d-Isoephedrine
Empirical Formula (Hill Notation):
C10H15NO
CAS Number:
Molecular Weight:
165.23
Beilstein:
2414132
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

98%

optical activity

[α]20/D +52°, c = 0.6 in ethanol

mp

118-120 °C

SMILES string

CN[C@@H](C)[C@@H](O)c1ccccc1

InChI

1S/C10H15NO/c1-8(11-2)10(12)9-6-4-3-5-7-9/h3-8,10-12H,1-2H3/t8-,10+/m0/s1

InChI key

KWGRBVOPPLSCSI-WCBMZHEXSA-N

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General description

(1S,2S)-(+)-Pseudoephedrine, a natural enantiomer of ephedrine, is a decongestant commonly used in cold and allergy medicines.

Application

(1S,2S)-(+)-Pseudoephedrine may be used as a chiral auxillary in asymmetric synthesis of enantioenriched organic compounds. It may also be used to prepare a novel tertiary pseudo C2-symmetric 1,2-diamine, which facilitates the enantioselective addition of methyl lithium to imines with better yield.
(1S,2S)-(+)-Pseudoephedrine condenses with N,N-diisopropyl-2-formyl-1-naphthamide to form the corresponding oxazolidine derivative as a single diasterisomer.

Packaging

5, 25, 100 g in glass bottle

Biochem/physiol Actions

Non-selective adrenergic agonist; decongestant

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Certificate of Origin

James K Cunningham et al.
Drug and alcohol dependence, 126(1-2), 55-64 (2012-05-18)
Clandestine laboratory operators commonly extract ephedrine and pseudoephedrine-precursor chemicals used to synthesize methamphetamine-from over-the-counter cold/allergy/sinus products. To prevent this activity, two states, Oregon in 07/2006 and Mississippi in 07/2010, implemented regulations classifying ephedrine and pseudoephedrine as Schedule III substances, making
Beatriz Alonso et al.
The Journal of organic chemistry, 78(2), 614-627 (2012-12-25)
We have developed an efficient protocol for carrying out the stereocontrolled formal conjugate addition of hydroxycarbonyl anion equivalents to α,β-unsaturated carboxylic acid derivatives using (S,S)-(+)-pseudoephedrine as chiral auxiliary, making use of the synthetic equivalence between the heteroaryl moieties and the
A new pseudo C2-symmetric tertiary diamine for the enantioselective addition of MeLi to aromatic imines.
Gille S, et al.
Tetrahedron Asymmetry, 17(7), 1045-1047 (2006)
(-)-Ephedrine as an auxiliary for the asymmetric synthesis of atropisomeric amides by dynamic resolution under thermodynamic control.
Clayden J and Lai LW.
Tetrahedron Letters, 42(18), 3163-3166 (2001)
Jillian M Hagel et al.
Trends in plant science, 17(7), 404-412 (2012-04-17)
Amphetamine analogs are produced by plants in the genus Ephedra and by Catha edulis, and include the widely used decongestants and appetite suppressants pseudoephedrine and ephedrine. A combination of yeast (Candida utilis or Saccharomyces cerevisiae) fermentation and subsequent chemical modification

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