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75469

Sigma-Aldrich

L-Ornithine monohydrochloride

≥99.5% (AT), BioXtra

Synonym(s):

(S)-2,5-Diaminopentanoic acid monohydrochloride

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About This Item

Empirical Formula (Hill Notation):
C5H12N2O2 · HCl
CAS Number:
Molecular Weight:
168.62
Beilstein:
3625847
EC Number:
MDL number:
UNSPSC Code:
12352209
PubChem Substance ID:
NACRES:
NA.26

Product Name

L-Ornithine monohydrochloride, BioXtra, ≥99.5% (AT)

product line

BioXtra

Assay

≥99.5% (AT)

form

powder

optical activity

[α]20/D +23.0±0.5°, c = 5% in 5 M HCl

impurities

insoluble matter, passes filter test
≤0.3% foreign amino acids

ign. residue

≤0.1% (as SO4)

loss

≤0.1% loss on drying, 20 °C (HV)

color

white

pH

5.0-6.0 (25 °C, 1 M in H2O)

solubility

H2O: 1 M at 20 °C, clear, colorless

anion traces

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: ≤10 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: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
NH4+: ≤200 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

1 M in H2O

UV absorption

λ: 260 nm Amax: 0.06
λ: 280 nm Amax: 0.06

SMILES string

Cl.NCCC[C@H](N)C(O)=O

InChI

1S/C5H12N2O2.ClH/c6-3-1-2-4(7)5(8)9;/h4H,1-3,6-7H2,(H,8,9);1H/t4-;/m0./s1

InChI key

GGTYBZJRPHEQDG-WCCKRBBISA-N

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Other Notes

Product of arginine degradation by arginase

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Sherry Dadsetan et al.
Biochemical pharmacology, 85(1), 115-123 (2012-10-30)
Combined administration of ornithine and phenylacetate (OP) is proposed as a novel treatment of hyperammonemia and hepatic encephalopathy. Ornithine is believed to increase ammonia fixation into glutamine in muscle tissue and glutamine is subsequently thought to react with phenylacetate forming
Charles D Mills
Critical reviews in immunology, 32(6), 463-488 (2013-02-23)
The purpose of immunology is simple. Cure or prevent disease. M1/M2 is useful because it is simple. M1/M2 describes the two major and opposing activities of macrophages. M1 activity inhibits cell proliferation and causes tissue damage while M2 activity promotes
Takuya Ouchi et al.
Nature chemical biology, 9(4), 277-283 (2013-02-26)
LysW has been identified as a carrier protein in the lysine biosynthetic pathway that is active through the conversion of α-aminoadipate (AAA) to lysine. In this study, we found that the hyperthermophilic archaeon, Sulfolobus acidocaldarius, not only biosynthesizes lysine through
Nicole Berthold et al.
Antimicrobial agents and chemotherapy, 57(1), 402-409 (2012-11-02)
Proline-rich antimicrobial peptides (PrAMPs) from insects and mammals have recently been evaluated for their pharmaceutical potential in treating systemic bacterial infections. Besides the native peptides, several shortened, modified, or even artificial sequences were highly effective in different murine infection models.
Isabel Araque et al.
Food microbiology, 33(1), 107-113 (2012-11-06)
The accumulation of citrulline and ornithine in wine or beer as a result of the arginine catabolism of some lactic acid bacteria (LAB) species increases the risk of ethyl carbamate and putrescine formation, respectively. Several LAB species, which are found

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