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Alkaloids

beta-ERYTHROIDINE

Also known as 12,13-Didehydro-13,14-dihydro-alpha-erythroidine, 1-(4-chlorophenyl)-2-methyl-propan-2-amine, (1S,16R)-16-methoxy-5-oxa-10-azatetracyclo[8.7.0.01,13.02,7]heptadeca-2(7),12,14-trien-4-one

CAS 466-81-9Formula C16H19NO3Molar mass 273.33 g/molEC 684-444-6
GHS signal word: Warning. Pictograms: Harmful or irritant
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beta-ERYTHROIDINE chemical structure, C16H19NO3, CAS 466-81-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
466-81-9
Formula
C16H19NO3
Molar mass
273.33 g/mol
EC number
684-444-6
HS code
293979
Category
Alkaloids

What is beta-ERYTHROIDINE?

Plain description, key identifiers and synonyms

Beta-erythroidine is an organic heterotetracyclic indole alkaloid isolated from the seeds and other parts of Erythrina species. It differs from the alpha isomer in having the double bond of the dihydropyranone ring located beta,gamma- to the lactone carbonyl group instead of alpha,beta-. It has a role as a muscle relaxant and a plant metabolite. It is a delta-lactone, an organic heterotetracyclic compound, an indole alkaloid and a tertiary amino compound.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(1S,16R)-16-methoxy-5-oxa-10-azatetracyclo[8.7.0.01,13.02,7]heptadeca-2(7),12,14-trien-4-one
CAS number
466-81-9 CAS number cross-checked
EC number
684-444-6
Molecular formula
C16H19NO3
UNII
7334EOU8K5
InChIKey
PXWINCSLFXUWBZ-BBRMVZONSA-N
InChI
InChI=1S/C16H19NO3/c1-19-13-3-2-12-5-7-17-6-4-11-10-20-15(18)8-14(11)16(12,17)9-13/h2-3,5,13H,4,6-10H2,1H3/t13-,16-/m0/s1
Canonical SMILES
COC1C=CC2=CCN3CCC4=C(CC(=O)OC4)C23C1
Isomeric SMILES
CO[C@@H]1C[C@]23C4=C(CCN2CC=C3C=C1)COC(=O)C4

Synonyms

  • 12,13-Didehydro-13,14-dihydro-alpha-erythroidine
  • 1-(4-chlorophenyl)-2-methyl-propan-2-amine
  • (1S,16R)-16-methoxy-5-oxa-10-azatetracyclo[8.7.0.01,13.02,7]heptadeca-2(7),12,14-trien-4-one
  • I2-Erythroidine
  • (1S,16R)-16-methoxy-5-oxa-10-azatetracyclo(8.7.0.01,13.02,7)heptadeca-2(7),12,14-trien-4-one
  • (2R,13bS)-2,6,8,9,10,13-Hexahydro-2-methoxy-1H,12H-benzo(i)pyrano(3,4-g)indolizin-12-one
  • b-erythroidine
  • (4bS,6R)-6-methoxy-1,4,6,10,12,13-hexahydro-3H,5H-pyrano[4',3':3,4]pyrido[2,1-i]indol-3-one
  • (+)-beta-erythroidine
  • Erythroidine hydrochloride
  • 16(15H)-Oxaerythrinan-15-one, 1,2,6,7-tetradehydro-14,17-dihydro-3-methoxy-, (3-beta)-
  • 4-27-00-03568 (Beilstein Handbook Reference)
  • beta-erythroidine, (+)-
  • (2R,13BS)-2-methoxy-1,2,8,9,10,13-hexahydropyrano[4',3':3,4]pyrido[2,1-i]indol-12(6H)-one
  • (3.Beta.)-1,2,6,7-tetradehydro-14,17-dihydro-3-methoxy-16(15H)-oxaerythrinan-15-one
  • 1H,12H-Pyrano(4',3':3,4)pyrido(2,1-i)indol-12-one, 2,6,8,9,10,13-hexahydro-2-methoxy-, (2R,13bs)-

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
273.33 g/molcalc.
Exact mass
273.1365 Dacalc.
LogP (octanol/water)
1.59calc.
Topological polar surface area
38.77 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
1calc.
Heavy atoms
20calc.
Rings
4calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.56calc.
Formal charge
0calc.
Stereocentres
2calc.
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=C1CC2=C(CCN3CC=C4C=CCCC423)CO1

O=C1CC2=C(CCN3CC=C4C=CCCC423)CO1

4 rings, 18 atoms.

5 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (16)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • 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

beta-ERYTHROIDINE suppliers

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beta-ERYTHROIDINE 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

Roles

  • eukaryotic metabolite
  • metabolite
  • muscle relaxant
  • neuromuscular agent
  • pharmaceutical
  • plant metabolite

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 beta-ERYTHROIDINE is traded under.

HS 2939.79Indicative HS code

Alkaloids of vegetal origin, other than cocaine, ecgonine, salts, esters and other derivatives, not elsewhere…

World exports in 2024
$701M
+18.9% vs 2023, imports $830M
2019 to 2024
Top exporters
  1. Switzerland * partner reported25.3%
  2. Germany21.4%
  3. India * partner reported14.9%
Top importers
  1. United States20.9%
  2. Germany14.7%
  3. Italy14.6%

* Partner reported figures, a lower bound.

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

The HS code shown for beta-ERYTHROIDINE is indicative (it is known at chapter level only). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about beta-ERYTHROIDINE, based on the data on this page

What is beta-ERYTHROIDINE?

Beta-erythroidine is an organic heterotetracyclic indole alkaloid isolated from the seeds and other parts of Erythrina species. It differs from the alpha isomer in having the double bond of the dihydropyranone ring located beta,gamma- to the lactone carbonyl group instead of alpha,beta-.

What is the CAS number of beta-ERYTHROIDINE?

The CAS registry number of beta-ERYTHROIDINE is 466-81-9.

What is the molecular formula and weight of beta-ERYTHROIDINE?

The molecular formula of beta-ERYTHROIDINE is C16H19NO3 and its molar mass is 273.33 g/mol.

What is beta-ERYTHROIDINE used for?

Known uses and roles of beta-ERYTHROIDINE include eukaryotic metabolite, metabolite, muscle relaxant, neuromuscular agent, pharmaceutical and 1 more.

Is beta-ERYTHROIDINE hazardous?

beta-ERYTHROIDINE carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of beta-ERYTHROIDINE?

beta-ERYTHROIDINE is usually classified under HS code 293979 (Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy beta-ERYTHROIDINE?

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What is the price of beta-ERYTHROIDINE?

Suppliers quote beta-ERYTHROIDINE 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

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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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