Product Name

  • Name

    Orphenadrine citrate

  • EINECS 225-137-5
  • CAS No. 4682-36-4
  • Density 1.014 g/cm3
  • Solubility
  • Melting Point 132-134 °C
  • Formula C18H23NO.C6H8O7
  • Boiling Point 363 °C at 760 mmHg
  • Molecular Weight 461.512
  • Flash Point 107.1 °C
  • Transport Information UN 3249
  • Appearance White solid
  • Safety 22-36
  • Risk Codes 22-40
  • Molecular Structure Molecular Structure of 4682-36-4 (Orphenadrine citrate)
  • Hazard Symbols HarmfulXn, IrritantXi
  • Synonyms Orphenadrine citrate (USP);Norflex;orphenadrine dihydrogen citrate;N,N-dimethyl-2-[(2-methylphenyl)-phenyl-methoxy]ethanamine; 2-hydroxypropane-1,2,3-tricarboxylic acid;Ethanamine,N,N-dimethyl-2-[(2-methylphenyl) phenylmethoxy]-,2-hydroxy-1,2,3- propanetricarboxylate (1:1);
  • PSA 133.60000
  • LogP 2.75980

Orphenadrine citrate Chemical Properties

Molecular Structure:

Molecular Formula: C24H31NO8
Molecular Weight: 461.5048
IUPAC Name: N,N-Dimethyl-2-[(2-methylphenyl)-phenylmethoxy]ethanamine; 2-hydroxypropane-1,2,3-tricarboxylic acid
Synonyms of Orphenadrine citrate (CAS NO.4682-36-4): Orphenadrine Citrate [USAN] ; Norgesic ; (+-)-N,N-Dimethyl-2-((o-methyl-alpha-phenylbenzyl)oxy)ethylamine citrate (1:1) ; Banflex ; Benhexal ; EINECS 225-137-5 ; Ethanamine, N,N-dimethyl-2-((2-methylphenyl)phenylmethoxy)-, (+-)-, 2-hydroxy-1,2,3-propanetricarboxylate (1:1) ; Euflex ; Flexoject ; Flexon ; Flexor ; N,N-Dimethyl-2-((o-methyl-alpha-phenylbenzyl)oxy)ethylamine citrate (1:1) ; Norflex ; Norflex (pharmaceutical) ; Plenactol ; Tega-Flex ; X-Otag ; Ethanamine, N,N-dimethyl-2-((2-methylphenyl)phenyl)methoxy)-, 2-hydroxy-1,2,3-propanetricarboxylate (1:1) ; Ethylamine, N,N-dimethyl-2-((o-methyl-alpha-phenylbenzyl)oxy)-, citrate (1:1) ; Orphenadrine dihydrogen citrate
CAS NO: 4682-36-4
Classification Code: Antihistaminic ; Relaxant [skeletal muscle]
Melting point: 132-134 °C 
H bond acceptors: 2 
Freely Rotating Bonds: 6
Polar Surface Area: 9.23 Å2
Flash Point: 107.1 °C
Enthalpy of Vaporization: 60.9 kJ/mol
Boiling Point: 363 °C at 760 mmHg
Vapour Pressure: 1.86E-05 mmHg at 25°C

Orphenadrine citrate Uses

  Orphenadrine citrate (CAS NO.4682-36-4) is used as muscle relaxant and antihistaminic.

Orphenadrine citrate Safety Profile

Hazard Codes of Orphenadrine citrate (CAS NO.4682-36-4): HarmfulXn,Xi
Risk Statements: 22-40 
R22: Harmful if swallowed. 
R40: Limited evidence of a carcinogenic effect.
Safety Statements: 22-36 
S22: Do not breathe dust. 
S36: Wear suitable protective clothing.
RIDADR :3249
WGK Germany: 3
HazardClas:s 6.1(b)
PackingGroup: III

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