L-Ornithine (hydrochloride)

L-Ornithine: amino acid.

L-Ornithine testing at Vanguard Laboratory: identity, purity and quantity $250 per sample, with results in 3 to 5 business days.

Structure

2D structure of L-Ornithine

L-Ornithine: 2D structure drawn from the PubChem record (CID 76654).

Compound data

CAS number

3184-13-2 (hydrochloride)

Formula

C5H13ClN2O2

Molecular weight

168.62 g/mol (monoisotopic 168.07)

Type

amino acid

Structure and names

IUPAC name: (2S)-2,5-diaminopentanoic acid;hydrochloride

How Vanguard tests L-Ornithine

Identity, purity and quantity are measured by a chromatographic assay, with detection selected for the compound, against a reference standard, $250 per sample with results in 3 to 5 business days. Finished products use the same approach, with sample preparation matched to the product.

What's reported

  • Purity, as percent of total peak area
  • Quantity, in mg per serving or % w/w against the label
  • Identity, reported as match or no match against the reference standard

Tests and prices

$250

Chromatographic purity and mg per unit by the method matched to the compound, identity against a reference standard. 1 unit.

$200

Chromatographic purity on bulk powder. 50 mg.

Add-on tests

Add-on testPrice
Identity and impurities
FTIR identity$90
CHNS elemental analysis (carbon, hydrogen, nitrogen, sulfur)$125
Chiral purity (where a chiral method exists; new methods quoted)$250
Water, solvents and salt form
Water content by Karl Fischer$60
Residual solvents$150
Counterions: chloride, acetate and TFA$70
Assay
Assay, % w/w (with raw powder purity; $250 together)+$50
Metals and conformity
Heavy metals: arsenic, cadmium, chromium, mercury and lead$150
Conformity: purity and quantity on more units from the same lot$100 per extra unit

10% off for 10 or more samples.

Need something else? Other tests are available on request.

Sample amount and turnaround

Purity and quantity is $250 per sample (1 unit) and raw powder purity is $200 for 50 mg, with results in 3 to 5 business days. Send the material sealed and labeled, with the label claim and the form it contains.

Salts, forms and compendial references

  • Tell us the salt or form the label states, so quantity is reported on the same basis.
  • One page covers L-Ornithine and its salts and forms.

Questions about L-Ornithine testing

Is ornithine reported as the base or the hydrochloride?

On the basis the label states. Ornithine is about 78% of the hydrochloride's weight.

Can you test it in a finished product?

Yes. Capsules, powders, gummies and liquids are measured with sample preparation matched to the product, and reported in mg per serving or % w/w against the label.

Order

Send the product name, the form of the ingredient and the label claim for a quote, or submit a sample with the sample form.