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L-(-)-Ephedrine

L-(-)-Ephedrine Structure
  • ₹0
  • Product name: L-(-)-Ephedrine
  • CAS: 492-41-1
  • MF: C9H13NO
  • MW: 151.21
  • EINECS:207-755-7
  • MDL Number:MFCD00066044
  • Synonyms:Benzyl alcohol,alpha-(1-aminoethyl)-;Fenilpropanolamina;l-phenylpropanolamine ;Mydriatin;Norephedrine, (-)-;Propadrine;USAF cs-6;(-)-benzylalcoho
Properties Safety Information Description
Manufacturer Product number Product description Packaging Price Updated Buy

Properties

Melting point :51-53 °C(lit.)
alpha :-41 º (c=7, 1M HCl)
Boiling point :273.23°C (rough estimate)
Density :1.0406 (rough estimate)
refractive index :1.5380 (estimate)
Flash point :>230 °F
storage temp. :2-8°C
pka :9.958(at 10℃)
form :A solid
Stability :Stable. Incompatible with strong oxidizing agents. May discolour on exposure to light.
CAS DataBase Reference :492-41-1(CAS DataBase Reference)
NIST Chemistry Reference :Phenylpropanolamine(492-41-1)
EPA Substance Registry System :Benzenemethanol, .alpha.-[(1S)-1-aminoethyl]-, (.alpha.R)- (492-41-1)

Safety Information

Symbol(GHS): GHS hazard pictograms
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning GHS hazard pictograms P264, P270, P301+P312, P330, P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning GHS hazard pictograms P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning GHS hazard pictograms
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P302+P352 IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Description

This alkaloid was first isolated by Kanao from the Chinese drug 'Ma-Huang' (Ephedra sinica Stapf.) and later by Wolfes from E. helvetica C. A. Meyer and E. distachya Linn. It forms a crystalline mass and has [α] 20 D - 14.56° (EtOH). Several crystalline salts and derivatives are known: the hydrochloride has m.p. 171-2°C; [α] 20 D- 33.27° (H20); the sulphate dihydrate, m.p. 285-6°C (dry, dec.); [α] 28 D- 31.99° (H20); the aurichloride, m.p. 188°C; platinichloride, m.p. 221°C (dec.); (-)-hydrogen tartrate, m.p. about 160° after sintering at 130°C; oxalate, m.p. 245°C (dec.) and the p-nitrobenzoyl derivative, m.p. 175-6°C; [α] 28 D- 49.58° (CHCI3).
The (+)-form has m.p. 52°C; [α] 27 D + 14.76° (EtOH), yielding a hydro_x0002_chloride, m.p. 171-2°C; [α] 27 D + 33.4° (EtOH); sulphate dihydrate, m.p. 285- 6°C (dry, dec.); [α] 27 D+ 31.51 0 C (H20); aurichloride, m.p. 188°C (dec.) and platinichloride, m.p. 221.5°C (dec.). The (±)-form crystallizes as colourless plates from Et20, m.p. 104-5°C and also furnishes a series of crystalline salts and derivatives.

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