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Heterocyclic building blocks

Harmol

Also known as 1-methyl-9H-pyrido[3,4-b]indol-7-ol, 9H-Pyrido[3,4-b]indol-7-ol, 1-methyl-, 1-Methyl-9H-beta-carbolin-7-ol

CAS 487-03-6Formula C12H10N2OMolar mass 198.23 g/molEC 207-645-9
4 suppliers listed
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Harmol chemical structure, C12H10N2O, CAS 487-03-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
487-03-6
Formula
C12H10N2O
Molar mass
198.23 g/mol
EC number
207-645-9
HS code
293399
Category
Heterocyclic building blocks

What is Harmol?

Plain description, key identifiers and synonyms

Harmol is a 9H-beta-carboline carrying a methyl substituent at C-1 and a hydroxy group at C-7, major microspecies at pH 7.3. It has a role as an autophagy inducer, an antifungal agent and an apoptosis inducer. It is an indole alkaloid and a harmala alkaloid. It is functionally related to a beta-carboline.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-methyl-2,9-dihydropyrido[3,4-b]indol-7-one
CAS number
487-03-6 CAS number cross-checkedOther or deprecated CAS: 40580-83-4
EC number
207-645-9
Molecular formula
C12H10N2O
UNII
7PQ075MCA6
MDL number
MFCD00834164
InChIKey
LBBJNGFCXDOYMQ-UHFFFAOYSA-N
InChI
InChI=1S/C12H10N2O/c1-7-12-10(4-5-13-7)9-3-2-8(15)6-11(9)14-12/h2-6,13-14H,1H3
SMILES (canonical and isomeric)
CC1=C2C(=C3C=CC(=O)C=C3N2)C=CN1

Synonyms

  • 1-methyl-9H-pyrido[3,4-b]indol-7-ol
  • 9H-Pyrido[3,4-b]indol-7-ol, 1-methyl-
  • 1-Methyl-9H-beta-carbolin-7-ol
  • 1-methyl-2,9-dihydropyrido[3,4-b]indol-7-one
  • 1-methylbeta-carbolin-7-ol
  • 1-Methyl-9H-pyrido(3,4-b)indol-7-ol
  • 9H-Pyrido(3,4-b)indol-7-ol, 1-methyl-
  • 1-methyl-9~{H}-pyrido[3,4-b]indol-7-ol
  • 7-Hydroxyharman
  • Methylpyridoindolol
  • Harmol (Standard)
  • 9H-Pyrido[3,4-b]indol-7-ol, 1-methyl-, Harmol (6CI,7CI), NSC 72292, 1-methyl-9H-pyrido[3,4-b]indol-7-ol
  • HARMINE_met003
  • 7-Hydroxy-1-methyl-9H-pyrido[3,4-b]indole
  • DivK1c_006548
  • 1-Methyl-9H-?-carbolin-7-ol
  • 1-methyl-7-hydroxy-beta-carboline
  • 7-hydroxyl-1-methyl-beta-carboline
  • beta 7-Hydroxy-1-methyl--Carboline
  • 1-Methyl-9H-beta-carbolin-7-ol #
  • Sdccgmls-0066699.p001
  • beta-Carboline, 7-hydroxy-1-methyl-
  • 1-methyl-2,9-dihydro-beta-carbolin-7-one
  • 1-Methyl-9H-beta-carbolin-7-ol (harmalol)
  • 1-Methyl-9H-pyrido[3,4-b]indol-7-ol, 9CI
Show all 28 synonyms
  • 1-Methyl-2,9-dihydro-7H-pyrido[3,4-b]indol-7-one
  • 9H-Pyrido(3,4-b)indol-7-ol, 1-methyl- (8CI)(9CI)
  • HFI

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
198.23 g/molcalc.
Exact mass
198.0793 Dacalc.
LogP (octanol/water)
2.32calc.
Topological polar surface area
48.65 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
0calc.
Heavy atoms
15calc.
Rings
3calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0.08calc.
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, O=c1ccc2c(c1)[nH]c1c[nH]ccc12

O=c1ccc2c(c1)[nH]c1c[nH]ccc12

3 rings, 14 atoms, the 9H-Pyrido[3,4-b]indol-7-ol ring system.

8 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.

Harmol suppliers

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

All 4 suppliers
4 of 4 offers
  • Bio-India Biologicals (Bib) Corporation
    United StatesUnclaimed profile
    HarmolGrade, purity and minimum order on request
    Price on request
    View
  • A1 BioChem Labs
    United States, WilmingtonUnclaimed profile
    HarmolGrade, purity and minimum order on request
    Price on request
    View
  • ChemFaces
    China, WuhanUnclaimed profile
    HarmolGrade, purity and minimum order on request
    Price on request
    View
  • Vitas-M Laboratory
    Hong Kong, CentralUnclaimed profile
    HarmolGrade, purity and minimum order on request
    Price on request
    View

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

4 suppliers in 3 countries

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Harmol 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

Roles

  • antifungal agent
  • antimicrobial agent
  • apoptosis inducer
  • autophagy inducer

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

Frequently asked questions

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

What is Harmol?

Harmol is a 9H-beta-carboline carrying a methyl substituent at C-1 and a hydroxy group at C-7, major microspecies at pH 7.3. It has a role as an autophagy inducer, an antifungal agent and an apoptosis inducer. It is an indole alkaloid and a harmala alkaloid. It is functionally related to a beta-carboline.

What is the CAS number of Harmol?

The CAS registry number of Harmol is 487-03-6. Other or deprecated CAS numbers: 40580-83-4.

What is the molecular formula and weight of Harmol?

The molecular formula of Harmol is C12H10N2O and its molar mass is 198.23 g/mol.

What is Harmol used for?

Known uses and roles of Harmol include building blocks in research and laboratory, screening compounds in research and laboratory, antifungal agent, antimicrobial agent, apoptosis inducer and 1 more.

Is Harmol hazardous?

No GHS hazard classification for Harmol 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 Harmol?

Harmol 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 Harmol?

CompoundList lists 4 suppliers of Harmol in United States, China and Hong Kong. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Harmol?

Suppliers quote Harmol 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 Harmol

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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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