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Merck
CN

11149

L-Asparagine

BioUltra, ≥99.5% (NT)

Synonym(s):

(S)-2-Aminosuccinic acid 4-amide, L-Aspartic acid 4-amide

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About This Item

Linear Formula:
H2NCOCH2CH(NH2)CO2H
CAS Number:
Molecular Weight:
132.12
UNSPSC Code:
12352200
PubChem Substance ID:
eCl@ss:
32160406
EC Number:
200-735-9
Beilstein/REAXYS Number:
1723527
MDL number:
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product line

BioUltra

assay

≥99.5% (NT)

optical activity

[α]20/D +35.0±0.5°, c = 5% in 5 M HCl

impurities

insoluble matter, passes filter test, ≤1% foreign amino acids

ign. residue

≤0.05% (as SO4)

pH

4.0-5.5 (25 °C, 0.1 M in H2O)

mp

235 °C (dec.) (lit.)

solubility

H2O: 0.1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤50 mg/kg

cation traces

Al: ≤5 mg/kg, As: ≤0.1 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤50 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Li: ≤5 mg/kg, Mg: ≤50 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Na: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg

λ

0.1 M in H2O

UV absorption

λ: 260 nm Amax: 0.07, λ: 280 nm Amax: 0.06

SMILES string

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

InChI

1S/C4H8N2O3/c5-2(4(8)9)1-3(6)7/h2H,1,5H2,(H2,6,7)(H,8,9)/t2-/m0/s1

InChI key

DCXYFEDJOCDNAF-REOHCLBHSA-N

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Other Notes

As spacer in isotachophoresis; Growth requirement of various microorganisms.

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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T. Yagi et al. et al.
Electrophoresis ?83, 503-503 (1984)
CRC Handbook of Microbiology, 4, 1-1 (1974)
P.W. Lange
Anal. Chem. Symp. Ser., 5, 187-187 (1980)
Tatsuo Yanagisawa et al.
Acta crystallographica. Section D, Biological crystallography, 69(Pt 1), 5-15 (2013-01-01)
Structures of Methanosarcina mazei pyrrolysyl-tRNA synthetase (PylRS) have been determined in a novel crystal form. The triclinic form crystals contained two PylRS dimers (four monomer molecules) in the asymmetric unit, in which the two subunits in one dimer each bind
Phuc Vinh Nguyen Lam et al.
Genomics, proteomics & bioinformatics, 11(2), 96-104 (2013-03-06)
The asparagine-X-serine/threonine (NXS/T) motif, where X is any amino acid except proline, is the consensus motif for N-linked glycosylation. Significant numbers of high-resolution crystal structures of glycosylated proteins allow us to carry out structural analysis of the N-linked glycosylation sites

Global Trade Item Number

SKUGTIN
249742-1G04061825928739

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