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Sigma-Aldrich

3-(2-Thienyl)-L-alanine

≥98.0% (TLC)

Synonym(s):

(S)-α-Amino-2-thiophenepropionic acid, (S)-2-Amino-3-(2-thienyl)propionic acid

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About This Item

Empirical Formula (Hill Notation):
C7H9NO2S
CAS Number:
22951-96-8
Molecular Weight:
171.22
Beilstein/REAXYS Number:
82872
MDL number:
MFCD00064335
UNSPSC Code:
12352209
PubChem Substance ID:
57653304
NACRES:
NA.22

assay

≥98.0% (TLC)

form

powder

optical activity

[α]20/D −30.5±1.5°, c = 1% in H2O

reaction suitability

reaction type: solution phase peptide synthesis

mp

255-263 °C (dec.) (lit.)
~260 °C (dec.)

application(s)

peptide synthesis

SMILES string

N[C@@H](Cc1cccs1)C(O)=O

InChI

1S/C7H9NO2S/c8-6(7(9)10)4-5-2-1-3-11-5/h1-3,6H,4,8H2,(H,9,10)/t6-/m0/s1

InChI key

WTOFYLAWDLQMBZ-LURJTMIESA-N

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Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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A1270000

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3,4-Dihydroxy-L-phenylalanine ≥98% (TLC)

Sigma-Aldrich

D9628

3,4-Dihydroxy-L-phenylalanine

L-Alanine ≥98% (TLC)

Sigma-Aldrich

A7627

L-Alanine

I W Hamley et al.
The journal of physical chemistry. B, 114(32), 10674-10683 (2010-07-29)
The self-assembly of a peptide based on a sequence from the amyloid beta peptide but incorporating the non-natural amino acid beta-2-thienylalanine (2-Thi) has been investigated in aqueous and methanol solutions. The peptide AAKLVFF was used as a design motif, replacing
K J Brown et al.
Medical microbiology and immunology, 168(1), 11-24 (1980-02-01)
Faecal samples were taken from three diet-managed phenylketonuric children to determine effects of beta-2-thienylalanine (beta-2-t) on indigenous bacteria. From sample swabs, 127 anaerobes were identified and tested for beta-2-t inhibition on a phenylalanine (Phe)-free medium, Anaerobe Inhibition Test (AIT) agar.
D P Bedard et al.
Journal of bacteriology, 141(1), 100-105 (1980-01-01)
When treated with the amino acid analog beta-2-DL-thienylalanine, cells of the yeast Saccharomyces cerevisiae accumulated in the G1 portion of the cell cycle at the "start" event. This G1 arrest was accompanied by a rapid decrease in the rate of
"Physiological phenylketonuria": a biochemical defect caused by delayed maturation of the phenylalanine hydroxylation pathway and by competition with the phenylalanine biosynthetic pathway.
K J Brown
Medical hypotheses, 6(2), 215-224 (1980-02-01)
G Riccardi et al.
Journal of bacteriology, 147(3), 1002-1007 (1981-09-01)
Mutants of Spirulina platensis resistant to 5-fluorotryptophan, beta-3-thienyl-alanine, ethionine, p-fluorophenylalanine, or azetidine-2-carboxylic acid were isolated. Some of these mutants appeared to be resistant to more than one analog and to overproduce the corresponding amino acids. A second group was composed
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