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Alkaloids

Cryptolepine

Also known as 5-methylindolo[3,2-b]quinoline, 5H-Quindoline, 5-methyl-, 5-methylindolo(3,2-b)quinoline

CAS 480-26-2Formula C16H12N2Molar mass 232.29 g/mol
1 supplier listed
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Cryptolepine chemical structure, C16H12N2, CAS 480-26-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
480-26-2
Formula
C16H12N2
Molar mass
232.29 g/mol
HS code
293979
Category
Alkaloids

What is Cryptolepine?

Plain description, key identifiers and synonyms

Cryptolepine is an organic heterotetracyclic compound that is 5H-indolo[3,2-b]quinoline in which the hydrogen at position N-5 is replaced by a methyl group. It has a role as an antineoplastic agent, an antimalarial, a cysteine protease inhibitor, an anti-inflammatory agent and a plant metabolite. It is an organonitrogen heterocyclic compound, an organic heterotetracyclic compound and an indole alkaloid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
5-methylindolo[3,2-b]quinoline
CAS number
480-26-2 CAS number cross-checked
Molecular formula
C16H12N2
UNII
OF1UIT4RDH
InChIKey
KURWKDDWCJELSV-UHFFFAOYSA-N
InChI
InChI=1S/C16H12N2/c1-18-15-9-5-2-6-11(15)10-14-16(18)12-7-3-4-8-13(12)17-14/h2-10H,1H3
SMILES (canonical and isomeric)
CN1C2=CC=CC=C2C=C3C1=C4C=CC=CC4=N3

Synonyms

  • 5-methylindolo[3,2-b]quinoline
  • 5H-Quindoline, 5-methyl-
  • 5-methylindolo(3,2-b)quinoline
  • 5-methylquinolo(2',3'-3,2)indole
  • 5-Methyl-5H-indolo[3,2-b]quinoline
  • 5-Methyl-5H-quindoline hydrate
  • 5-Methylquindoline

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
232.29 g/molcalc.
Exact mass
232.10 Dacalc.
LogP (octanol/water)
3.83calc.
Topological polar surface area
17.82 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
0calc.
Heavy atoms
18calc.
Rings
4calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.06calc.
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, c1ccc2[nH]c3c4ccccc4nc-3cc2c1

c1ccc2[nH]c3c4ccccc4nc-3cc2c1

4 rings, 17 atoms.

3 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.

Cryptolepine suppliers

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Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

1 supplier in 1 country

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Cryptolepine price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Pharmacological actions

  • Antimalarials

Roles

  • anti-inflammatory agent
  • antiinfective agent
  • antimalarial
  • antimicrobial agent
  • antimicrobial drug
  • antineoplastic agent
  • antiparasitic agent
  • antiplasmodial drug
  • antiprotozoal drug
  • cysteine protease inhibitor
  • enzyme inhibitor
  • eukaryotic metabolite
  • metabolite
  • pharmaceutical
  • plant metabolite
  • protease inhibitor

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

Frequently asked questions

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

What is Cryptolepine?

Cryptolepine is an organic heterotetracyclic compound that is 5H-indolo[3,2-b]quinoline in which the hydrogen at position N-5 is replaced by a methyl group. It has a role as an antineoplastic agent, an antimalarial, a cysteine protease inhibitor, an anti-inflammatory agent and a plant metabolite.

What is the CAS number of Cryptolepine?

The CAS registry number of Cryptolepine is 480-26-2.

What is the molecular formula and weight of Cryptolepine?

The molecular formula of Cryptolepine is C16H12N2 and its molar mass is 232.29 g/mol.

What is Cryptolepine used for?

Known uses and roles of Cryptolepine include anti-inflammatory agent, antiinfective agent, antimalarial, antimicrobial agent, antimicrobial drug and 12 more.

Is Cryptolepine hazardous?

No GHS hazard classification for Cryptolepine 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 Cryptolepine?

Cryptolepine 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 Cryptolepine?

CompoundList lists 1 supplier of Cryptolepine 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 Cryptolepine?

Suppliers quote Cryptolepine 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 Cryptolepine

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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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