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Heterocyclic building blocks

Levallorphan

Also known as Naloxiphan, Levallorphane, 17-Allylmorphinan-3-ol

CAS 152-02-3Formula C19H25NOMolar mass 283.42 g/molEC 205-799-1
1 supplier listed
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Levallorphan chemical structure, C19H25NO, CAS 152-02-3
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Crystals from dilute ethanol
Melting point
180 to 182 °C
Solubility
WHITE OR PRACTICALLY WHITE CRYSTALLINE POWDER, 1 G SOL IN ABOUT 20 ML WATER, PRACTICALLY…
HS code
293399
Category
Heterocyclic building blocks
Illustrative photo, closed blue fibre drums on a pallet in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Levallorphan?

Plain description, key identifiers and synonyms

Levallorphan is a morphinane alkaloid.

Levallorphan is an opioid medication.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(1R,9R,10R)-17-prop-2-enyl-17-azatetracyclo[7.5.3.01,10.02,7]heptadeca-2(7),3,5-trien-4-ol
CAS number
152-02-3 CAS number cross-checked
EC number
205-799-1
Molecular formula
C19H25NO
UNII
353613BU4U
InChIKey
OZYUPQUCAUTOBP-QXAKKESOSA-N
InChI
InChI=1S/C19H25NO/c1-2-10-20-11-9-19-8-4-3-5-16(19)18(20)12-14-6-7-15(21)13-17(14)19/h2,6-7,13,16,18,21H,1,3-5,8-12H2/t16-,18+,19+/m0/s1
Canonical SMILES
C=CCN1CCC23CCCCC2C1Cc1ccc(O)cc13
Isomeric SMILES
C=CCN1CC[C@]23CCCC[C@H]2[C@H]1CC4=C3C=C(C=C4)O

Synonyms

  • Naloxiphan
  • Levallorphane
  • 17-Allylmorphinan-3-ol
  • Levalorfano
  • Levallorphanum
  • Levallofano
  • N-Allyl-3-hydroxymorphinan
  • L-N-Allyl-3-hydroxymorphinan
  • (-)-3-Hydroxy-N-allylmorphinan
  • Levo-3-hydroxy-N-allyl morphinan
  • Morphinan-3-ol, 17-allyl-
  • Ro-1-7700
  • Morphinan, 17-allyl-3-hydroxy-
  • (1R,9R,10R)-17-prop-2-enyl-17-azatetracyclo[7.5.3.01,10.02,7]heptadeca-2(7),3,5-trien-4-ol
  • (1R,9R,10R)-17-(prop-2-en-1-yl)-17-azatetracyclo[7.5.3.0^{1,10}.0^{2,7}]heptadeca-2(7),3,5-trien-4-ol
  • (1R,9R,10R)-17-(prop-2-en-1-yl)-17-azatetracyclo(7.5.3.0^(1,10).0^(2,7))heptadeca-2(7),3,5-trien-4-ol
  • (1R,9R,10R)-17-prop-2-enyl-17-azatetracyclo(7.5.3.01,10.02,7)heptadeca-2(7),3,5-trien-4-ol
  • Morphinan-3-ol, 17-(2-propenyl)-
  • MCL 113, N-Allyl-3-hydroxymorphinan
  • 17-prop-2-en-1-ylmorphinan-3-ol
  • Morphinan-3-ol, 17-allyl-, (-)-
  • (a^?-17-allylmorphinan-3-ol
  • (levallorphan)17-allyl-(1R,9R)-17-azatetracyclo[7.5.3.01,10.02,7]heptadeca-2(7),3,5-trien-4-ol
  • 17-allyl-(1R,9R)-17-azatetracyclo[7.5.3.01,10.02,7]heptadeca-2(7),3,5-trien-4-ol( Levallorphan)
  • 17-allyl-17-azatetracyclo[7.5.3.01,10.02,7]heptadeca-2(7),3,5-trien-4-ol (Levallorphan)
Show all 26 synonyms
  • 17-(prop-2-en-1-yl)morphinan-3-ol

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

Appearance
Crystals from dilute ethanolexp.
Melting point
180 to 182 °Cexp.
Solubility
WHITE OR PRACTICALLY WHITE CRYSTALLINE POWDER, 1 G SOL IN ABOUT 20 ML WATER, PRACTICALLY INSOL IN ETHER, INSOL IN CHLOROFORM, 1 G SOL IN ABOUT 60 ML ALCOHOL /TARTRATE/exp.

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
283.42 g/molcalc.
Exact mass
283.1936 Dacalc.
LogP (octanol/water)
3.64calc.
Topological polar surface area
23.47 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
2calc.
Heavy atoms
21calc.
Rings
4calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.58calc.
Formal charge
0calc.
Stereocentres
3calc.
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, c1ccc2c(c1)CC1NCCC23CCCCC13

c1ccc2c(c1)CC1NCCC23CCCCC13

4 rings, 17 atoms.

171 other chemicals share this scaffold

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.

Levallorphan suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

See the supplier
  • EvitaChem
    China, BeijingUnclaimed profile
    LevallorphanGrade, purity and minimum order on request
    Price on request
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Where suppliers are based

1 supplier in 1 country

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Levallorphan 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

In treatment of narcotic-induced resp depression (tartrate).

Veterinary medication:.

Use classes: Pharmaceuticals.

Pharmacological actions

  • Narcotic Antagonists

How it is made

Prepn from 3-hydroxy-n-methylmorphinan: schnider, grussner, helv chim acta 34, 2211 (1951). Alternate route: hellerbach et al, ibid 39, 429 (1956).

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 Levallorphan is traded under.

HS 2933.99Indicative HS code

Heterocyclic compounds with nitrogen hetero-atom(s) only, other

World exports in 2024
$12.1B
−31.0% vs 2023, imports $28.8B
2019 to 2024
Top exporters
  1. China30.5%
  2. India * partner reported16.3%
  3. Ireland9.0%
Top importers
  1. Slovenia31.7%
  2. Italy24.2%
  3. United States5.0%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Levallorphan, based on the data on this page

What is Levallorphan?

Levallorphan is a morphinane alkaloid.

What is the CAS number of Levallorphan?

The CAS registry number of Levallorphan is 152-02-3.

What is the molecular formula and weight of Levallorphan?

The molecular formula of Levallorphan is C19H25NO and its molar mass is 283.42 g/mol.

What is Levallorphan used for?

In treatment of narcotic-induced resp depression (tartrate). Veterinary medication:. Use classes: Pharmaceuticals.

Is Levallorphan hazardous?

No GHS hazard classification for Levallorphan 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 Levallorphan?

Levallorphan is usually classified under HS code 293399 (Heterocyclic compounds with nitrogen hetero-atom(s) only, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Levallorphan?

CompoundList lists 1 supplier of Levallorphan in China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Levallorphan?

Suppliers quote Levallorphan 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 Levallorphan

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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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