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Alkaloids

Bulbocapnine

Also known as (+)-Bulbocapnine, Bulbokaprin, (S)-(+)-Bulbocapnine

CAS 298-45-3Formula C19H19NO4Molar mass 325.36 g/molEC 206-061-1
GHS signal word: Warning. Pictograms: Harmful or irritant 2 suppliers listed
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Bulbocapnine chemical structure, C19H19NO4, CAS 298-45-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
298-45-3
Formula
C19H19NO4
Molar mass
325.36 g/mol
EC number
206-061-1
HS code
293979
Category
Alkaloids

What is Bulbocapnine?

Plain description, key identifiers and synonyms

Bulbocapnine is an aporphine alkaloid that has been isolated from Corydalis and exhibits inhibitory activity against enzymes such as tyrosine 3-monooxygenase and diamine oxidase. It has a role as an EC 1.4.3.22 (diamine oxidase) inhibitor, an EC 1.14.16.2 (tyrosine 3-monooxygenase) inhibitor and a plant metabolite. It is an aporphine alkaloid, a member of phenols, an aromatic ether and an oxacycle. It is functionally related to an aporphine. It is a conjugate base of a bulbocapnine(1+).

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(12S)-17-methoxy-11-methyl-3,5-dioxa-11-azapentacyclo[10.7.1.02,6.08,20.014,19]icosa-1(20),2(6),7,14(19),15,17-hexaen-18-ol
CAS number
298-45-3 CAS number cross-checked
EC number
206-061-1
Molecular formula
C19H19NO4
UNII
O0TGI865QO
InChIKey
LODGIKWNLDQZBM-LBPRGKRZSA-N
InChI
InChI=1S/C19H19NO4/c1-20-6-5-11-8-14-19(24-9-23-14)17-15(11)12(20)7-10-3-4-13(22-2)18(21)16(10)17/h3-4,8,12,21H,5-7,9H2,1-2H3/t12-/m0/s1
Canonical SMILES
COc1ccc2c(c1O)-c1c3c(cc4c1C(C2)N(C)CC4)OCO3
Isomeric SMILES
CN1CCC2=CC3=C(C4=C2[C@@H]1CC5=C4C(=C(C=C5)OC)O)OCO3

Synonyms

  • (+)-Bulbocapnine
  • Bulbokaprin
  • (S)-(+)-Bulbocapnine
  • 4-Hydroxy-3-methoxy-5,6-methylenedioxy-aporphin
  • 5H-Benzo(g)-1,3-benzodioxolo(6,5,4-de)quinolin-12-ol, 6,7,7a,8-tetrahydro-11-methoxy-7-methyl-, (S)-
  • 6a-alpha-APORPHIN-11-OL, 10-METHOXY-1,2-(METHYLENEDIOXY)-
  • (7aS)-11-methoxy-7-methyl-6,7,7a,8-tetrahydro-5H-[1,3]benzodioxolo[6,5,4-de]benzo[g]quinolin-12-ol
  • (7aS)-11-methoxy-7-methyl-6,7,7a,8-tetrahydro-5H-(1,3)benzodioxolo(6,5,4-de)benzo(g)quinolin-12-ol
  • d-Bulbocapnine
  • (S)-Bulbocapnine
  • (12S)-17-methoxy-11-methyl-3,5-dioxa-11-azapentacyclo[10.7.1.02,6.08,20.014,19]icosa-1(20),2(6),7,14(19),15,17-hexaen-18-ol
  • Bulbocapnin
  • Buibocapnine hydrochloride
  • PDSP2_000621
  • (7aS)-11-Methoxy-7-methyl-6,7,7a,8-tetrahydro-2H,5H-[1,3]benzodioxolo[6,5,4-de]benzo[g]quinolin-12-ol
  • (S)-11-methoxy-7-methyl-6,7,7a,8-tetrahydro-5H-benzo[g][1,3]dioxolo[4'',5'':4,5]benzo[1,2,3-de]quinolin-12-ol
  • 11-Methoxy-7-methyl-6,7,7a,8-tetrahydro-5H-benzo[g][1,3]dioxolo[4'',5'':4,5]benzo[1,2,3-de]quinolin-12-ol (Bulbocapnine)

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
325.36 g/molcalc.
Exact mass
325.1314 Dacalc.
LogP (octanol/water)
2.88calc.
Topological polar surface area
51.16 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
1calc.
Heavy atoms
24calc.
Rings
5calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.37calc.
Formal charge
0calc.
Stereocentres
1calc.
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)CC1NCCc3cc4c(c-2c31)OCO4

c1ccc2c(c1)CC1NCCc3cc4c(c-2c31)OCO4

5 rings, 20 atoms.

96 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

  • H302Harmful if swallowed.
Precautionary statements (5)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P301 + P317If swallowed: Get medical help.
  • P330Rinse mouth.
  • 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

Bulbocapnine suppliers

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All 2 suppliers

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Where suppliers are based

2 suppliers in 1 country

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Bulbocapnine 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

  • enzyme inhibitor
  • eukaryotic metabolite
  • metabolite
  • 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 Bulbocapnine 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 Bulbocapnine is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Bulbocapnine?

Bulbocapnine is an aporphine alkaloid that has been isolated from Corydalis and exhibits inhibitory activity against enzymes such as tyrosine 3-monooxygenase and diamine oxidase. It has a role as an EC 1.4.3.22 (diamine oxidase) inhibitor, an EC 1.14.16.2 (tyrosine 3-monooxygenase) inhibitor and a plant metabolite.

What is the CAS number of Bulbocapnine?

The CAS registry number of Bulbocapnine is 298-45-3.

What is the molecular formula and weight of Bulbocapnine?

The molecular formula of Bulbocapnine is C19H19NO4 and its molar mass is 325.36 g/mol.

What is Bulbocapnine used for?

Known uses and roles of Bulbocapnine include enzyme inhibitor, eukaryotic metabolite, metabolite and plant metabolite.

Is Bulbocapnine hazardous?

Bulbocapnine carries the GHS signal word "Warning". Main hazards: harmful if swallowed. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Bulbocapnine?

Bulbocapnine 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 Bulbocapnine?

CompoundList lists 2 suppliers of Bulbocapnine 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 Bulbocapnine?

Suppliers quote Bulbocapnine 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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