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Amines and amides

Catecholamine

Also known as Sympathins, Sympathin, 3-aminobenzene-1,2-diol

CAS 20734-66-1Formula C6H7NO2Molar mass 125.13 g/molEC 870-398-6
GHS signal word: Warning. Pictograms: Harmful or irritant 54 suppliers listed
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Catecholamine chemical structure, C6H7NO2, CAS 20734-66-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
20734-66-1
Formula
C6H7NO2
Molar mass
125.13 g/mol
EC number
870-398-6
HS code
292229
Category
Amines and amides

What is Catecholamine?

Plain description, key identifiers and synonyms

Catecholamine is a group of sympathetic amines containing a catechol group derived from the amino acid tyrosine. Catecholamines are hormones and neuromodulators synthesized in the chromaffin cells of the adrenal glands and the postganglionic fibers of the sympathetic nervous system in response to stress. Examples of catecholamines are epinephrine (adrenaline), norepinephrine (noradrenaline) and dopamine, all of which participate in a wide variety of functions throughout the body.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3-aminobenzene-1,2-diol
CAS number
20734-66-1Other or deprecated CAS: 117001-65-7
EC number
870-398-6
Molecular formula
C6H7NO2
UNII
LN92UE2TCY
MDL number
MFCD14584779
InChIKey
MGBKJKDRMRAZKC-UHFFFAOYSA-N
InChI
InChI=1S/C6H7NO2/c7-4-2-1-3-5(8)6(4)9/h1-3,8-9H,7H2
SMILES (canonical and isomeric)
C1=CC(=C(C(=C1)O)O)N

Synonyms

  • Sympathins
  • Sympathin
  • 3-aminobenzene-1,2-diol
  • 3-amino-1,2-benzenediol
  • 3-aminocatechol
  • Benzenediol, amino-
  • 1,2-Benzenediol, 3-amino-
  • 2,3-dihydroxyaniline
  • Pyrocatechol, 3-amino-
  • Aminobenzenediol
  • 2,3-Dihydroxyaniline, 3-Aminocatechol, 3-Aminopyrocatechol
  • 3-aminopyrocatechol
  • 3-Aminopyrocatechol, 2,3-Dihydroxyaniline, 3-Amino-1,2-benzenediol,
  • Brenzkatechinamine
  • 3-Aminobenzene-12-diol
  • 3-aminobenzene-1,2,-diol
  • 1,2-Dihydroxy-3-aminobenzene

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
125.13 g/molcalc.
Exact mass
125.0477 Dacalc.
LogP (octanol/water)
0.68calc.
Topological polar surface area
66.48 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
0calc.
Heavy atoms
9calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0calc.
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, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 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

  • H302 + H312 + H332Harmful if swallowed. Harmful in contact with skin. Harmful if inhaled.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (20)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P317Get medical help.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • 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

Catecholamine suppliers

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

All 54 suppliers
30 of 30 offers

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Where suppliers are based

54 suppliers in 11 countries

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Catecholamine 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 Catecholamine is traded under.

HS 2922.29Indicative HS code

Amino-naphthols and other amino-phenols, other than those containing more than one kind…

World exports in 2024
$467M
−15.3% vs 2023, imports $454M
2019 to 2024
Top exporters
  1. China63.1%
  2. India * partner reported15.5%
  3. Japan4.0%
Top importers
  1. India * partner reported25.8%
  2. United States14.4%
  3. South Korea7.6%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Catecholamine is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Catecholamine?

Catecholamine is a group of sympathetic amines containing a catechol group derived from the amino acid tyrosine. Catecholamines are hormones and neuromodulators synthesized in the chromaffin cells of the adrenal glands and the postganglionic fibers of the sympathetic nervous system in response to stress.

What is the CAS number of Catecholamine?

The CAS registry number of Catecholamine is 20734-66-1. Other or deprecated CAS numbers: 117001-65-7.

What is the molecular formula and weight of Catecholamine?

The molecular formula of Catecholamine is C6H7NO2 and its molar mass is 125.13 g/mol.

What is Catecholamine used for?

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

Is Catecholamine hazardous?

Catecholamine carries the GHS signal word "Warning". Main hazards: harmful if swallowed. harmful in contact with skin. harmful if inhaled, causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Catecholamine?

Catecholamine is usually classified under HS code 292229 (Amino-naphthols and other amino-phenols, other than those containing more than one kind…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Catecholamine?

CompoundList lists 54 suppliers of Catecholamine in United States, China, Germany, Spain and 7 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Catecholamine?

Suppliers quote Catecholamine 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 Catecholamine

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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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