L-ABRINE Chemical Properties

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)

optical activity

[α]20/D +65°, c = 1 in 0.5 M NaOH

Merck 

14,10

BRN 

86638

CAS DataBase Reference

526-31-8(CAS DataBase Reference)

Safety Information

Hazard Codes 

Xn

Risk Statements 

20/21/22

Safety Statements 

36

WGK Germany 

3

HS Code 

29339900

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS

L-ABRINE Usage And Synthesis

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.

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.]

L-ABRINE(526-31-8)Related Product Information

• Nalpha-FMOC-L-Tryptophan
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• H-LEU-TRP-OH
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• Z-ALA-TRP-OH
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