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Merck
CN

1.08411

L-Threonine

for biochemistry

Synonym(s):

L-Threonine, Thr, 2-Amino-3-hydroxybutanoic acid

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About This Item

Empirical Formula (Hill Notation):
C4H9NO3
CAS Number:
Molecular Weight:
119.12
UNSPSC Code:
12352209
EC Index Number:
200-774-1
NACRES:
NA.21
MDL number:
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Quality Level

form

solid

pH

5-6 (20 °C, 100 g/L in H2O)

mp

265-270 °C

solubility

90 g/L

bulk density

370 kg/m3

storage temp.

2-30°C

SMILES string

[N+H3]C(C(O)C)C(=O)[O-]

InChI

1S/C4H9NO3/c1-2(6)3(5)4(7)8/h2-3,6H,5H2,1H3,(H,7,8)

InChI key

AYFVYJQAPQTCCC-UHFFFAOYSA-N

Analysis Note

Assay (perchloric acid titration): ≥ 99.0 %
Identity (IR-spectrum): passes test
Appearance: white to almost white, fine powder
Appearance of solution (1 mol/l, water): clear and colorless
Spec. rotation (α 20/D, 50 g/l, hydrochloric acid 1 mol/l): -15.4 to -16.4
Heavy metals (as Pb): ≤ 0.001 %
NH₄ (Ammonium): ≤ 0.01 %
Foreign amino acids: ≤ 0.3 %
Other ninhydrine positive substances: ≤ 0.1 %


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Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable



Certificates of Analysis (COA)

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Global Trade Item Number

SKUGTIN
108411001004022536104133
108411010004022536104140
108411100004022536104157
108411901004022536692845