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Amino acids and derivatives

3-Hydroxyornithine

Also known as beta-Hydroxyornithine, (3S)-3-hydroxy-L-ornithine, 3-Hydroxy-DL-ornithine

CAS 64818-17-3Formula C5H12N2O3Molar mass 148.16 g/mol
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3-Hydroxyornithine chemical structure, C5H12N2O3, CAS 64818-17-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
64818-17-3
Formula
C5H12N2O3
Molar mass
148.16 g/mol
HS code
292250
Category
Amino acids and derivatives

What is 3-Hydroxyornithine?

Plain description, key identifiers and synonyms

(3S)-3-hydroxy-L-ornithine is an L-ornithine substituted at position 3 by a hydroxy group (the 3S-erythro-stereoisomer). It is a L-ornithine derivative and a non-proteinogenic alpha-amino acid. It is a conjugate base of a (3S)-3-hydroxy-L-ornithine(1+).

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2S,3S)-2,5-diamino-3-hydroxypentanoic acid
CAS number
64818-17-3 CAS number cross-checked
Molecular formula
C5H12N2O3
InChIKey
UHPDQDWXMXBLRX-IMJSIDKUSA-N
InChI
InChI=1S/C5H12N2O3/c6-2-1-3(8)4(7)5(9)10/h3-4,8H,1-2,6-7H2,(H,9,10)/t3-,4-/m0/s1
Canonical SMILES
NCCC(O)C(N)C(=O)O
Isomeric SMILES
C(CN)[C@@H]([C@@H](C(=O)O)N)O

Synonyms

  • beta-Hydroxyornithine
  • (3S)-3-hydroxy-L-ornithine
  • 3-Hydroxy-DL-ornithine
  • DL-Ornithine, 3-hydroxy-, erythro-
  • (2s,3s)-3-hydroxyornithine
  • (3S)-3-hydroxyornithine
  • (2S,3S)-2,5-diamino-3-hydroxypentanoic acid
  • L-erythro-beta-hydroxyornithine

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
148.16 g/molcalc.
Exact mass
148.0848 Dacalc.
LogP (octanol/water)
-1.89calc.
Topological polar surface area
109.6 Ųcalc.
Hydrogen bond donors
4calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
4calc.
Heavy atoms
10calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.8calc.
Formal charge
0calc.
Stereocentres
2calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

3-Hydroxyornithine suppliers

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3-Hydroxyornithine price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 3-Hydroxyornithine is traded under.

HS 2922.50Indicative HS code

Amino-alcohol-phenols, amino-acid-phenols and other amino-compounds with oxygen function

World exports in 2024
$3.29B
−5.9% vs 2023, imports $3.19B
2019 to 2024
Top exporters
  1. China39.2%
  2. United Kingdom27.1%
  3. India * partner reported4.8%
Top importers
  1. United States20.7%
  2. Germany7.6%
  3. Italy6.6%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for 3-Hydroxyornithine is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 3-Hydroxyornithine, based on the data on this page

What is 3-Hydroxyornithine?

(3S)-3-hydroxy-L-ornithine is an L-ornithine substituted at position 3 by a hydroxy group (the 3S-erythro-stereoisomer). It is a L-ornithine derivative and a non-proteinogenic alpha-amino acid. It is a conjugate base of a (3S)-3-hydroxy-L-ornithine(1+).

What is the CAS number of 3-Hydroxyornithine?

The CAS registry number of 3-Hydroxyornithine is 64818-17-3.

What is the molecular formula and weight of 3-Hydroxyornithine?

The molecular formula of 3-Hydroxyornithine is C5H12N2O3 and its molar mass is 148.16 g/mol.

Is 3-Hydroxyornithine hazardous?

No GHS hazard classification for 3-Hydroxyornithine is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of 3-Hydroxyornithine?

3-Hydroxyornithine is usually classified under HS code 292250 (Amino-alcohol-phenols, amino-acid-phenols and other amino-compounds with oxygen function). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 3-Hydroxyornithine?

Post a free request on CompoundList and suppliers of 3-Hydroxyornithine will send you quotes. Your contact details stay private until you accept a quote.

What is the price of 3-Hydroxyornithine?

Suppliers quote 3-Hydroxyornithine on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle 3-Hydroxyornithine

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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