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Flavonoids and polyphenols

(-)-Catechol

Also known as (-)-Catechin, (2S,3R)-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-2H-1-benzopyran-3,5,7-triol, (2S,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol

CAS 18829-70-4Formula C15H14O6Molar mass 290.27 g/molEC 230-731-2
GHS signal word: Warning. Pictograms: Harmful or irritant 15 suppliers listed
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(-)-Catechol chemical structure, C15H14O6, CAS 18829-70-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
18829-70-4
Formula
C15H14O6
Molar mass
290.27 g/mol
EC number
230-731-2
HS code
293299
Category
Flavonoids and polyphenols

What is (-)-Catechol?

Plain description, key identifiers and synonyms

(-)-catechin is the ()-enantiomer of catechin. It has a role as a metabolite. It is an enantiomer of a (+)-catechin.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2S,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol
CAS number
18829-70-4 CAS number cross-checkedOther or deprecated CAS: 7295-85-4
EC numbers
230-731-2, 242-611-7
Molecular formula
C15H14O6
UNII
FHB0GX3D44
MDL number
MFCD00135997
InChIKey
PFTAWBLQPZVEMU-HIFRSBDPSA-N
InChI
InChI=1S/C15H14O6/c16-8-4-11(18)9-6-13(20)15(21-14(9)5-8)7-1-2-10(17)12(19)3-7/h1-5,13,15-20H,6H2/t13-,15+/m1/s1
Canonical SMILES
Oc1cc(O)c2c(c1)OC(c1ccc(O)c(O)c1)C(O)C2
Isomeric SMILES
C1[C@H]([C@@H](OC2=CC(=CC(=C21)O)O)C3=CC(=C(C=C3)O)O)O

Synonyms

  • (-)-Catechin
  • (2S,3R)-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-2H-1-benzopyran-3,5,7-triol
  • (2S,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol
  • catechin L-
  • Catechin l-form
  • (2S,3R)-2-(3,4-dihydroxyphenyl)chroman-3,5,7-triol
  • (-)-cianidanol
  • Catechin, alpha
  • (2s,3r)-2-(3,4-dihydroxyphenyl)chromane-3,5,7-triol
  • trans-2-(3,4-Dihydroxyphenyl)chroman-3,5,7-triol
  • 2H-1-Benzopyran-3,5,7-triol, 2-(3,4-dihydroxyphenyl)-3,4-dihydro-, (2S,3R)-
  • DL-Catechin
  • (+)-Catechin-13C3
  • alpha-catechin
  • rac-catechin
  • ()-catechin
  • Ent-Catechin
  • (+/-)-Catechin
  • Epicatechol, (-)-
  • (2~{S},3~{R})-2-[3,4-bis(oxidanyl)phenyl]-3,4-dihydro-2~{H}-chromene-3,5,7-triol
  • Racemic catechin
  • Cianidanol, (-)-
  • L-Catechin
  • L-Catechol
  • ( inverted exclamation markA)-Catechin
Show all 34 synonyms
  • (+)-3,3',4',5,7-Flavanpentol
  • (?)-Catechin
  • (?)-cis-3,3',4',5,7-Pentahydroxyflavane
  • (2S,3R)-catechin
  • (-)-Catechin hydrate
  • (-)-Catechin (Standard)
  • (2S,3R)-Ent-catechin
  • DL-Catechin, Racemic catechin, dl-Catechin, dl-Catechol, rac-Catechin
  • (-)-(2S,3R)-Catechin

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
290.27 g/molcalc.
Exact mass
290.079 Dacalc.
LogP (octanol/water)
1.55calc.
Topological polar surface area
110.4 Ųcalc.
Hydrogen bond donors
5calc.
Hydrogen bond acceptors
6calc.
Rotatable bonds
1calc.
Heavy atoms
21calc.
Rings
3calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.2calc.
Formal charge
0calc.
Stereocentres
2calc.
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, c1ccc(C2CCc3ccccc3O2)cc1

c1ccc(C2CCc3ccccc3O2)cc1

3 rings, 16 atoms, the Flavan ring system.

326 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

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (16)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • 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.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • 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

(-)-Catechol suppliers

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

All 15 suppliers
15 of 15 offers

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

15 suppliers in 6 countries

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(-)-Catechol 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

  • metabolite

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 (-)-Catechol is traded under.

HS 2932.99Indicative HS code

Heterocyclic compounds with oxygen hetero-atom(s) only, other

World exports in 2024
$3.81B
+10.3% vs 2023, imports $7.05B
2019 to 2024
Top exporters
  1. China28.9%
  2. Switzerland * partner reported12.7%
  3. Germany7.8%
Top importers
  1. United States49.7%
  2. China11.9%
  3. India * partner reported3.3%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about (-)-Catechol, based on the data on this page

What is (-)-Catechol?

(-)-catechin is the ()-enantiomer of catechin. It has a role as a metabolite. It is an enantiomer of a (+)-catechin.

What is the CAS number of (-)-Catechol?

The CAS registry number of (-)-Catechol is 18829-70-4. Other or deprecated CAS numbers: 7295-85-4.

What is the molecular formula and weight of (-)-Catechol?

The molecular formula of (-)-Catechol is C15H14O6 and its molar mass is 290.27 g/mol.

What is (-)-Catechol used for?

Known uses and roles of (-)-Catechol include metabolite.

Is (-)-Catechol hazardous?

(-)-Catechol carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of (-)-Catechol?

(-)-Catechol is usually classified under HS code 293299 (Heterocyclic compounds with oxygen hetero-atom(s) only, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy (-)-Catechol?

CompoundList lists 15 suppliers of (-)-Catechol in China, United States, Switzerland, France and 2 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 (-)-Catechol?

Suppliers quote (-)-Catechol 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 (-)-Catechol

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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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