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Impurities and reference standards

Oxycodone N-oxide

Also known as Oxycodeinone N-oxide, 14-Hydroxydihydrocodeinone N-oxide, Morphinan-6-one, 4,5-epoxy-14-hydroxy-3-methoxy-17-methyl-, 17-oxide, (5alpha)-

CAS 71539-52-1Formula C18H21NO5Molar mass 331.37 g/molEC 642-233-6
GHS signal word: Danger. Pictograms: Harmful or irritant, Serious health hazard
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Oxycodone N-oxide chemical structure, C18H21NO5, CAS 71539-52-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
71539-52-1
Formula
C18H21NO5
Molar mass
331.37 g/mol
EC number
642-233-6
HS code
293499
Category
Impurities and reference standards

What is Oxycodone N-oxide?

Plain description, key identifiers and synonyms

Oxycodone N-oxide is a chemical substance with the molecular formula C18H21NO5 and a molar mass of 331.37 g/mol. Its CAS registry number is 71539-52-1. The IUPAC name is (4R,4aS,7aR,12bS)-4a-hydroxy-9-methoxy-3-methyl-3-oxido-2,4,5,6,7a,13-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-3-ium-7-one.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(4R,4aS,7aR,12bS)-4a-hydroxy-9-methoxy-3-methyl-3-oxido-2,4,5,6,7a,13-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-3-ium-7-one
CAS number
71539-52-1
EC number
642-233-6
Molecular formula
C18H21NO5
UNII
BI9GPM78KS
InChIKey
GXMDLXQESSRSFB-ZWKGOLINSA-N
InChI
InChI=1S/C18H21NO5/c1-19(22)8-7-17-14-10-3-4-12(23-2)15(14)24-16(17)11(20)5-6-18(17,21)13(19)9-10/h3-4,13,16,21H,5-9H2,1-2H3/t13-,16+,17+,18-,19?/m1/s1
Canonical SMILES
COc1ccc2c3c1OC1C(=O)CCC4(O)C(C2)[N+](C)([O-])CCC314
Isomeric SMILES
C[N+]1(CC[C@]23[C@@H]4C(=O)CC[C@]2([C@H]1CC5=C3C(=C(C=C5)OC)O4)O)[O-]

Synonyms

  • Oxycodeinone N-oxide
  • 14-Hydroxydihydrocodeinone N-oxide
  • Morphinan-6-one, 4,5-epoxy-14-hydroxy-3-methoxy-17-methyl-, 17-oxide, (5alpha)-
  • Morphinan-6-one, 4,5-epoxy-14-hydroxy-3-methoxy-17-methyl-, 17-oxide, (5.alpha.)-
  • (5R,9R,13S,14S,17R)-14-hydroxy-3-methoxy-17-methyl-4,5-epoxymorphinan-6-one N-oxide
  • Oxycodone N-Oxide (1.0mg/ml in Methanol)
  • Oxycodone Related Compound B CII (F1I028)

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
331.37 g/molcalc.
Exact mass
331.142 Dacalc.
LogP (octanol/water)
1.06calc.
Topological polar surface area
78.82 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
1calc.
Heavy atoms
24calc.
Rings
5calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.61calc.
Formal charge
0calc.
Stereocentres
5calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=C1CCC2C3Cc4cccc5c4C2(CCN3)C1O5

O=C1CCC2C3Cc4cccc5c4C2(CCN3)C1O5

5 rings, 19 atoms.

148 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS07: Harmful or irritant
Harmful or irritant
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H302Harmful if swallowed.
  • H317May cause an allergic skin reaction.
  • H332Harmful if inhaled.
  • H334May cause allergy or asthma symptoms or breathing difficulties if inhaled.
Precautionary statements (20)
  • P233Keep container tightly closed.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P272Contaminated work clothing should not be allowed out of the workplace.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P284In case of inadequate ventilation wear respiratory protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P333 + P317If skin irritation or rash occurs: Get medical help.
  • P342 + P316If experiencing respiratory symptoms: Get emergency medical help immediately.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403Store in a well-ventilated place.
  • P501Dispose of contents and container in accordance with local regulations.

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

Full safety data and first aid

Oxycodone N-oxide suppliers

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Oxycodone N-oxide price

Indicative price range per kg from live supplier offers

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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 Oxycodone N-oxide is traded under.

HS 2934.99Indicative HS code

Nucleic acids and their salts, other heterocyclic compounds, not elsewhere classified in heading 2934

World exports in 2024
$26.7B
+15.0% vs 2023, imports $26.3B
2019 to 2024
Top exporters
  1. Ireland26.3%
  2. China15.7%
  3. Singapore10.3%
Top importers
  1. United States24.5%
  2. Germany23.1%
  3. Japan4.5%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Oxycodone N-oxide, based on the data on this page

What is Oxycodone N-oxide?

Oxycodone N-oxide is a chemical substance with the molecular formula C18H21NO5 and a molar mass of 331.37 g/mol. Its CAS registry number is 71539-52-1. The IUPAC name is (4R,4aS,7aR,12bS)-4a-hydroxy-9-methoxy-3-methyl-3-oxido-2,4,5,6,7a,13-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-3-ium-7-one.

What is the CAS number of Oxycodone N-oxide?

The CAS registry number of Oxycodone N-oxide is 71539-52-1.

What is the molecular formula and weight of Oxycodone N-oxide?

The molecular formula of Oxycodone N-oxide is C18H21NO5 and its molar mass is 331.37 g/mol.

Is Oxycodone N-oxide hazardous?

Oxycodone N-oxide carries the GHS signal word "Danger". Main hazards: harmful if swallowed, may cause an allergic skin reaction, harmful if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Oxycodone N-oxide?

Oxycodone N-oxide is usually classified under HS code 293499 (Nucleic acids and their salts, whether or not chemically defined, other heterocyclic…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Oxycodone N-oxide?

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What is the price of Oxycodone N-oxide?

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Guides for buyers

Practical guides that help when you source, ship or handle Oxycodone N-oxide

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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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