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T9299

Sigma-Aldrich

β-(1,2,4-Triazol-3-yl)-DL-alanine

≥98% (TLC)

Synonym(s):

(±)-2-Amino-3-(1,2,4-triazol-3-yl)propionic acid, DL-1,2,4-Triazole-3-alanine

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About This Item

Empirical Formula (Hill Notation):
C5H8N4O2
CAS Number:
10109-05-4
Molecular Weight:
156.14
EC Number:
233-301-2
MDL number:
MFCD00055957
UNSPSC Code:
12352209
eCl@ss:
32160406
PubChem Substance ID:
24900592
NACRES:
NA.26

product name

β-(1,2,4-Triazol-3-yl)-DL-alanine,

Assay

≥98% (TLC)

Quality Level

200

form

powder

color

white to off-white

storage temp.

−20°C

SMILES string

NC(Cc1nc[nH]n1)C(O)=O

InChI

1S/C5H8N4O2/c6-3(5(10)11)1-4-7-2-8-9-4/h2-3H,1,6H2,(H,10,11)(H,7,8,9)

InChI key

CAPORZWUTKSILW-UHFFFAOYSA-N

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Linkage

Inhibitory histidine analog.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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Strauss, A., et al.
Plant Cell, Tissue and Organ Culture, 3, 123-123 (1984)
D E Levin et al.
Environmental mutagenesis, 8(1), 9-28 (1986-01-01)
The standard Salmonella tester strains used to detect base substitution mutations carry the hisG428 ochre mutation (TA102 and TA104) and the hisG46 missense mutation (TA100). These mutations can be reverted by base changes at their mutant his loci or at
K A Sment et al.
Applied and environmental microbiology, 55(5), 1295-1297 (1989-05-01)
In contrast to wild-type cells, it was found that triazole-alanine-resistant mutants of Methanococcus voltae excreted histidine, proline, phenylalanine, and tyrosine in various combinations. These results suggest that a form of general amino acid biosynthetic control may operate in this methanogen.
S H Beiboer et al.
Protein engineering, 9(4), 345-352 (1996-04-01)
The effect of the substitution of the active site histidine 48 by the unnatural 1,2,4-triazole-3-alanine (TAA) amino acid analogue in porcine pancreas phospholipase A2 (PLA2) was studied. TAA was introduced biosynthetically using a his-auxotrophic Escherichia coli strain. To study solely
P Soumillion et al.
Protein engineering, 11(3), 213-217 (1998-06-05)
The only histidine residue in the H31N-H137N double mutant of phage lambda lysozyme (lambdaL), at position 48, was biosynthetically replaced by the analogue 1,2,4-triazole-3-alanine (Taz), the basicity of which is 3 pKa units lower. A histidine-auxotrophic strain was grown to
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