134910

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134910

Aldrich

 

(1R,2S)-(−)-Ephedrine

98%

Synonym:(−)-Ephedrine, L-α-(1-Methylaminoethyl)benzyl alcohol, (1R,2S)-(−)-α-(1-Methylaminoethyl)benzyl alcohol, (1R,2S)-(−)-2-Methylamino-1-phenyl-1-propanol
CAS Number:299-42-3
Linear Formula:C6H5CH[CH(NHCH3)CH3]OH
Molecular Weight:165.23
Beilstein Registry Number:2208730
EC Number:206-080-5
MDL number:MFCD00064257
PubChem Substance ID:24848190

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Description

Packaging5, 25, 100 g in glass btl
ApplicationVersatile chiral synthon,1 employed in catalysis2 and in the preparation of optically pure sulfoxides3 and oxazolidines.4

Properties

assay98%
optical activity[α]21/D −41°, c = 5 in 1 M HCl
bp255 °C(lit.)
mp37-39 °C(lit.)
density1.124 g/mL at 25 °C(lit.)

Safety

Personal Protective Equipmentdust mask type N95 (US), Eyeshields, Gloves
Hazard CodesXn
Risk Statements22
Safety Statements22-25
WGK Germany1
RTECSKB0700000
Flash Point(F)186.8 °F
Flash Point(C)86 °C

References

Cited Reference1. Aldrichimica Acta 13, 13, (1980)
 2. Tet. Asym. 2, 1123, (1991)
 3. Tetrahedron Lett. 32, 5885, (1991)
 4. Synth. Commun., 829, (1992)
MerckMerck 13,3639
BeilsteinBeil. 13,IV,1879
FieserFieser 5,289 / Fieser 9,209 / Fieser 11,230 / Fieser 14,159 / Fieser 15,154 / Fieser 17,134
referenceAldrich MSDS 1, 853:A / Corp MSDS 1 (1), 1513:A / FT-IR 2 (2), 2162:C / FT-IR 1 (1), 1277:C / FT-NMR 1 (2), 586:A / IR-Spectra (2), 674:H / IR-Spectra (3), 767:F / NMR-Reference 2 (1), 1078:C / RegBook 1 (1), 1475:C / Sax 6, 1280 / Sigma FT-IR 1 (1), 588:A / Structure Index 1, 230:B:7