| Identification | More | [Name]
L-ABRINE | [CAS]
526-31-8 | [Synonyms]
1-METHYL-L-TRYPTOPHAN
ABRINE
ABRINE, L-
H-METRP-OH
L-ABRINE
N ALPHA-METHYL-L(+)-TRYPTOPHAN
N-ALPHA-METHYL-L-TRYPTOPHAN
N-A-METHYL-L-TRYPTOPHAN
N-METHYL-L-TRYPTOPHAN
N-METHYL-L-TRYPTOPHANE HYDROCHLORIDE
N-METHYLTRYPTOPHAN
N-ME-TRP-OH
N-ME-TRP-OH HCL
N-ME-TRYPTOPHAN
N-alpha-Methyl-L-trytophan
(2S)-2-(Methylamino)-3-(1H-indole-3-yl)propanoic acid
(S)-3-(1H-Indol-3-yl)-2-(methylamino)propionic acid | [EINECS(EC#)]
208-388-5 | [Molecular Formula]
C12H14N2O2 | [MDL Number]
MFCD00005645 | [Molecular Weight]
218.25 | [MOL File]
526-31-8.mol |
| Chemical Properties | Back Directory | [Appearance]
white to light grey crystalline powder or crystals | [Melting point ]
>300 °C (dec.)(lit.) | [alpha ]
D21 +44° (0.28 g in 10 ml 0.5N HCl) | [Boiling point ]
358.94°C (rough estimate) | [density ]
1.272±0.06 g/cm3 (20 ºC 760 Torr) | [refractive index ]
65 ° (C=1, 0.5mol/L NaOH) | [storage temp. ]
under inert gas (nitrogen or Argon) at 2–8 °C | [solubility ]
H2O : 2 mg/mL (9.16 mM; ultrasonic and adjust pH to 10 with NaOH) | [form ]
Cryst. | [pka]
2.32±0.10(Predicted) | [color ]
Off-white to light yellow | [optical activity]
[α]20/D +65°, c = 1 in 0.5 M NaOH | [Merck ]
10 | [BRN ]
86638 | [CAS DataBase Reference]
526-31-8(CAS DataBase Reference) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn | [Risk Statements ]
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed . | [Safety Statements ]
S36:Wear suitable protective clothing . | [WGK Germany ]
3
| [HS Code ]
29339900 |
| Hazard Information | Back Directory | [Chemical Properties]
white to light grey crystalline powder or crystals | [Uses]
L-Abrine is an indoleamino acid that displays radical scavenging and antioxidant properties. | [Definition]
ChEBI: A N-methyl-L-alpha-amino acid that is the Nalpha-methyl derivative of L-tryptophan. | [reaction suitability]
reaction type: solution phase peptide synthesis | [Biochem/physiol Actions]
An indoleamino acid that shows radical scavenging and antioxidant properties in vitro. | [Purification Methods]
Crystallise L-abrine from H2O or EtOH/H2O mixture and dry it for 2days at 60o in high vacuum; it has m 275-290o(dec with browning at 230o) and [] D +47.2o (c 2, 0.5N HCl) [Peter et al. Helv Chim Acta 46 577 1963]. [Gregory & Morley J Chem Soc 913 1968, Beilstein 22/14 V 40.] |
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