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CAS No 526-31-8 , L-Tryptophan, N-methyl- Search by region : Germany

  • Name: L-Tryptophan, N-methyl-
  • Synonyms: Abrine; L-N-Methyltryptophan;L-Tryptophan, N-methyl-;N-Methyl-L-tryptophan;Tryptophan,N-methyl-, L- (6CI,7CI,8CI); N-Methyltryptophan; N-a-Methyl-L-tryptophan; L-Abrine; (S)-3-(1H-Indol-3-yl)-2-methylaminopropionic acid; Abrine (amino acid); L-(+)-Abrine;
  • CAS Registry Number:
  • Melting Point: >300 °C (dec.)(lit.)
  • Density: 1.272 g/cm3
  • Refractive index: 65 ° (C=1, 0.5mol/L NaOH)
  • Safety Statements: 36
  • Hazard Symbols: Xn: Harmful;
  • EINECS: 208-388-5
  • Molecular Weight: 218.25
  • InChI: InChI=1/C12H14N2O2/c1-13-11(12(15)16)6-8-7-14-10-5-3-2-4-9(8)10/h2-5,7,11,13-14H,6H2,1H3,(H,15,16)/t11-/m0/s1
  • Risk Statements: 20/21/22
  • Molecular Formula: C12H14N2O2
  • Molecular Structure:CAS No:526-31-8 L-Tryptophan, N-methyl-

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References of L-Tryptophan, N-methyl-
Title: Abrine
CAS Registry Number: 526-31-8
CAS Name: N-Methyl-L-tryptophan
Synonyms: a-methylamino-b-(3-indole)propionic acid
Molecular Formula: C12H14N2O2
Molecular Weight: 218.25
Percent Composition: C 66.04%, H 6.47%, N 12.84%, O 14.66%
Literature References: Not to be confused with the albuminous substance abrin, q.v. Obtained from the seeds of Abrus precatorius L., Leguminosae (jequirity): Hoshino, Ann. 520, 31 (1935). Synthesis: Miller, Robson, J. Chem. Soc. 1938, 1910. Configuration: Cahill, Jackson, J. Biol. Chem. 126, 29 (1938).
Properties: Prisms from water, dec 295°. [a]D21 +44° (0.28 g in 10 ml 0.5N HCl). One gram dissolves in about 100 ml methanol, slightly sol in water, insol in ether. Sol in dil acids, alkalies.
Optical Rotation: [a]D21 +44° (0.28 g in 10 ml 0.5N HCl)
 
Derivative Type: Hydrochloride
Molecular Formula: C12H14N2O2.HCl
Molecular Weight: 254.71
Percent Composition: C 56.59%, H 5.94%, N 11.00%, O 12.56%, Cl 13.92%
Properties: Needles, mp 222°, soluble in water.
Melting point: mp 222°
 
Derivative Type: Nitrate
Molecular Formula: C12H14N2O2.HNO3
Molecular Weight: 281.26
Percent Composition: C 51.24%, H 5.38%, N 14.94%, O 28.44%
Properties: Needles, dec 143°.
 
Derivative Type: Acetyl derivative
Molecular Formula: C14H16N2O3
Molecular Weight: 260.29
Percent Composition: C 64.60%, H 6.20%, N 10.76%, O 18.44%
Properties: mp 176°. [a]D25 -148° (43 mg in 5 ml 0.1N NaOH).
Melting point: mp 176°
Optical Rotation: [a]D25 -148° (43 mg in 5 ml 0.1N NaOH)