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Heterocyclic building blocks

Sempervirine

Also known as Sempervirene, 16,17,18,19-tetrahydroyohimban, 1,2,3,4-Tetrahydro-13H-benz(g)indole(2,3-a)pyridocolinium nitrate

CAS 549-92-8Formula C19H16N2Molar mass 272.35 g/mol
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Sempervirine chemical structure, C19H16N2, CAS 549-92-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
549-92-8
Formula
C19H16N2
Molar mass
272.35 g/mol
HS code
293399
Category
Heterocyclic building blocks

What is Sempervirine?

Plain description, key identifiers and synonyms

Sempervirine is a member of beta-carbolines.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
16,17,18,19-tetrahydroyohimban
CAS number
549-92-8 CAS number cross-checked
Molecular formula
C19H16N2
UNII
F8O9288136
InChIKey
UQVUEULZDJRMJR-UHFFFAOYSA-N
InChI
InChI=1S/C19H16N2/c1-2-6-14-12-21-10-9-16-15-7-3-4-8-17(15)20-19(16)18(21)11-13(14)5-1/h3-4,7-12H,1-2,5-6H2
SMILES (canonical and isomeric)
C1CCC2=CN3C=CC4=C5C=CC=CC5=NC4=C3C=C2C1

Synonyms

  • Sempervirene
  • 16,17,18,19-tetrahydroyohimban
  • 1,2,3,4-Tetrahydro-13H-benz(g)indole(2,3-a)pyridocolinium nitrate
  • 2,3,4,13-Tetrahydro-1H-benz(g)indolo(2,3-a)quinolizin-6-ium, hydroxide, inner salt
  • Sempervirine nitrate
  • 1,3,5,6,14,15,20,21-octadehydroyohimban
  • sempervirin
  • 1H-Benz(g)indolo(2,3-a)quinolizin-6-ium, 2,3,4,13-tetrahydro-, inner salt
  • 2,3,4,13- Tetrahydro-1H-benz(g)indolo(2,3-a)quinolizin-6-ium, hydroxide, inner salt
  • 3,13lambda-diazapentacyclo[11.8.0.0(2),(1).0,.0(1),(2)]henicosa-1(13),2(10),4(9),5,7,11,14,20-octaen-13-ylium-3-ide

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
272.35 g/molcalc.
Exact mass
272.1313 Dacalc.
LogP (octanol/water)
4.47calc.
Topological polar surface area
17.3 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
0calc.
Heavy atoms
21calc.
Rings
5calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.21calc.
Formal charge
0calc.
Stereocentres
0calc.
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, c1ccc2c3ccn4cc5c(cc4c-3nc2c1)CCCC5

c1ccc2c3ccn4cc5c(cc4c-3nc2c1)CCCC5

5 rings, 21 atoms. This chemical is the scaffold itself.

1 other chemical 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.

Sempervirine suppliers

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Sempervirine 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

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 Sempervirine 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 Sempervirine is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Sempervirine?

Sempervirine is a member of beta-carbolines.

What is the CAS number of Sempervirine?

The CAS registry number of Sempervirine is 549-92-8.

What is the molecular formula and weight of Sempervirine?

The molecular formula of Sempervirine is C19H16N2 and its molar mass is 272.35 g/mol.

What is Sempervirine used for?

Known uses and roles of Sempervirine include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Sempervirine hazardous?

No GHS hazard classification for Sempervirine 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 Sempervirine?

Sempervirine 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 Sempervirine?

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

What is the price of Sempervirine?

Suppliers quote Sempervirine 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 Sempervirine

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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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