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Impurities and reference standards

Dopaminechrome

Also known as 2,3-dihydro-1H-indole-5,6-dione, aminochrome, Dopaminochrome

CAS 67992-45-4Formula C8H7NO2Molar mass 149.15 g/mol
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Dopaminechrome chemical structure, C8H7NO2, CAS 67992-45-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
67992-45-4
Formula
C8H7NO2
Molar mass
149.15 g/mol
HS code
293399
Category
Impurities and reference standards

What is Dopaminechrome?

Plain description, key identifiers and synonyms

Dopaminechrome (keto form) is a member of the class of indoledione that is 2,3,5,6-tetrahydro-1H-indole carrying oxo groups at positions 5 and 6, major microspecies at pH 7.3. It is an endogenous compound formed during dopamine oxidation and can induce neurotoxicity under certain aberrant conditions and induce Parkinson-like syndrome. It has a role as a neurotoxin. It is an indoledione and a member of orthoquinones. It is a tautomer of a dopaminechrome (enol form).

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2,3-dihydro-1H-indole-5,6-dione
CAS number
67992-45-4 CAS number cross-checkedOther or deprecated CAS: 39984-17-3
Molecular formula
C8H7NO2
InChIKey
XDEURYRPQDIBSL-UHFFFAOYSA-N
InChI
InChI=1S/C8H7NO2/c10-7-3-5-1-2-9-6(5)4-8(7)11/h3-4,9H,1-2H2
SMILES (canonical and isomeric)
C1CNC2=CC(=O)C(=O)C=C21

Synonyms

  • 2,3-dihydro-1H-indole-5,6-dione
  • aminochrome
  • Dopaminochrome
  • Aminochrome 1
  • 1H-Indole-5,6-dione, 2,3-dihydro-
  • Dopamine Impurity 15
  • 2,3-Dihydro-6-hydroxy-5H-indol-5-one
  • 6-hydroxy-2,3-dihydro-5H-indol-5-one
  • indoline-5,6-dione
  • 5,6-indolinedione
  • indoline-5,6-quinone
  • 6-hydroxy-3,5-dihydro-2H-indol-5-one
  • 2,3,5,6-tetrahydro-1H-indole-5,6-dione
  • dopaminechrome (enol form)
  • dopaminechrome (keto form)
  • 5.6-dihydroxyindoline quinone
  • 6-hydroxy-2,3-dihydroindol-5-one
  • 5H-Indol-5-one, 2,3-dihydro-6-hydroxy-
  • 2,3-Dihydro-6-hydroxy-5H-indol-5-one, Aminochrome, Aminochrome 1, Dopaminochrome, 6-hydroxy-2,3-dihydro-5H-indol-5-one
  • Dopaminechrome aminochrome 1H-Indole-5,6-dione, 2,3-dihydro- 67992-45-4 Aminochrome 1

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
149.15 g/molcalc.
Exact mass
149.0477 Dacalc.
LogP (octanol/water)
-0.06calc.
Topological polar surface area
46.17 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
0calc.
Heavy atoms
11calc.
Rings
2calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.25calc.
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=C1C=C2CCNC2=CC1=O

O=C1C=C2CCNC2=CC1=O

2 rings, 11 atoms. This chemical is the scaffold itself.

19 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.

Dopaminechrome suppliers

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Dopaminechrome 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

  • aetiopathogenetic role
  • neurotoxin
  • poison

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

Frequently asked questions

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

What is Dopaminechrome?

Dopaminechrome (keto form) is a member of the class of indoledione that is 2,3,5,6-tetrahydro-1H-indole carrying oxo groups at positions 5 and 6, major microspecies at pH 7.3.

What is the CAS number of Dopaminechrome?

The CAS registry number of Dopaminechrome is 67992-45-4. Other or deprecated CAS numbers: 39984-17-3.

What is the molecular formula and weight of Dopaminechrome?

The molecular formula of Dopaminechrome is C8H7NO2 and its molar mass is 149.15 g/mol.

What is Dopaminechrome used for?

Known uses and roles of Dopaminechrome include aetiopathogenetic role, neurotoxin and poison.

Is Dopaminechrome hazardous?

No GHS hazard classification for Dopaminechrome 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 Dopaminechrome?

Dopaminechrome 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 Dopaminechrome?

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

What is the price of Dopaminechrome?

Suppliers quote Dopaminechrome 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 Dopaminechrome

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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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