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L-Abrine

CAS No.
526-31-8
Chemical Name:
L-Abrine
Synonyms
ABRINE;N-METHYLTRYPTOPHAN;N-METHYL-L-TRYPTOPHAN;(S)-3-(1H-Indol-3-yl)-2-(methylamino)propionic acid;L-ABRINE;L-ABRINE;H-METRP-OH;ABRINE, L-;N-ME-TRP-OH;L-Abrine 99%
CBNumber:
CB1236662
Molecular Formula:
C12H14N2O2
Molecular Weight:
218.25
MDL Number:
MFCD00005645
MOL File:
526-31-8.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-27 23:17:13

L-Abrine 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)
color Off-white to light yellow
optical activity [α]20/D +65°, c = 1 in 0.5 M NaOH
Merck 14,10
BRN 86638
Major Application peptide synthesis
InChI InChI=1S/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
InChIKey CZCIKBSVHDNIDH-NSHDSACASA-N
SMILES C(O)(=O)[C@H](CC1C2=C(C=CC=C2)NC=1)NC
CAS DataBase Reference 526-31-8(CAS DataBase Reference)
FDA UNII P57TWL22IX
UNSPSC Code 41116107
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302+H312+H332
Precautionary statements  P261-P264-P280-P301+P312-P302+P352+P312-P304+P340+P312
PPE dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes  Xn
Risk Statements  20/21/22
Safety Statements  36
WGK Germany  3
HS Code  29339900
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Dermal
Acute Tox. 4 Inhalation
Acute Tox. 4 Oral
NFPA 704
0
1 0

L-Abrine price More Price(46)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 434248 L-Abrine 99% 526-31-8 1g $691 2026-04-30 Buy
TCI Chemical A1489 L-Abrine >98.0%(HPLC) 526-31-8 200mg $70 2021-12-16 Buy
Cayman Chemical 34914 L-Abrine ≥98% 526-31-8 25mg $54 2026-04-30 Buy
Cayman Chemical 34914 L-Abrine ≥98% 526-31-8 50mg $86 2026-04-30 Buy
Cayman Chemical 34914 L-Abrine ≥98% 526-31-8 100mg $108 2026-04-30 Buy
Product number Packaging Price Buy
434248 1g $691 Buy
A1489 200mg $70 Buy
34914 25mg $54 Buy
34914 50mg $86 Buy
34914 100mg $108 Buy

L-Abrine Chemical Properties, Uses, Production

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.]

L-Abrine Preparation Products And Raw materials

Raw materials

Preparation Products

Global Suppliers ( 194)
Supplier Tel Email Country ProdList Advantage
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64
Chemsky (shanghai) International Co.,Ltd 021-50135380 shchemsky@sina.com China 15350 60
Syntechem Co.,Ltd info@syntechem.com China 12973 57
Sichuan Kulinan Technology Co., Ltd 400-1166-196 18981987031 cdhxsj@163.com China 11674 57
ChemPep, Inc. +1 (888) 615-9178 / (561) 791-8787 service@chempep.com United States 2138 57
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd. 025-66113011 13913916777 cfzhang@aikonchem.com China 19902 55

View Latest Price from L-Abrine manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
L-(+)-Abrine pictures 2026-04-22 L-(+)-Abrine
526-31-8
98.71% 10g TargetMol Chemicals Inc.
L-(+)-Abrine pictures 2024-04-02 L-(+)-Abrine
526-31-8
$2800.00 1g 97 500 Kg R&D Scientific Inc.
Abrine pictures 2023-02-24 Abrine
526-31-8
5mg ≥98%(HPLC) 10 g Shanghai Standard Technology Co., Ltd.
  • Abrine pictures
  • Abrine
    526-31-8
  • $0.00
  • ≥98%(HPLC)
  • Shanghai Standard Technology Co., Ltd.
H-METRP-OH L-ABRINE ABRINE, L- N-ME-TRP-OH N-ME-TRP-OH HCL N-ME-TRYPTOPHAN N-METHYL-L-TRYPTOPHANE HYDROCHLORIDE N-A-METHYL-L-TRYPTOPHAN N ALPHA-METHYL-L(+)-TRYPTOPHAN N-ALPHA-METHYL-L-TRYPTOPHAN N-alpha-Methyl-L-trytophan (2S)-2-(Methylamino)-3-(1H-indole-3-yl)propanoic acid N-Methyl-L-tryptophan,99% Nα-Me-L-Trp-OH L-Abrine,Nα-Methyl-L-tryptophan N-METHYL-L-TRYPTOPHAN HYDROCHLORIDE L-N-Methyltryptophan (S)-3-(1H-indol-3-yl)-2-(MethylaMino)propanoic acid Nα-Methyl-L-tryptophan L-Abrine L-Abrine 99% L-Tryptophan, N-methyl- (2S)-3-(1H-indol-3-yl)-2-(methylamino)propanoic acid 3-(1H-indol-3-yl)-2-(methylammonio)propanoate L-Abrine > laevo-abrine H-N-Me-Trp-OH H-N-Me-L-Trp-OH L-Abrine L-ABRINE (S)-3-(1H-Indol-3-yl)-2-(methylamino)propionic acid ABRINE N-METHYLTRYPTOPHAN N-METHYL-L-TRYPTOPHAN 526-31-8 Indoles Tryptophans Amino Acid Derivatives N-Methyl Amino Acids Peptide Synthesis Specialty Synthesis Unnatural Amino Acid Derivatives Tryptophan Indoles Tryptophans Amino Acid Derivatives Peptide Synthesis Tryptophan