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Aromatic building blocks

Caffeic acid, (Z)-

Also known as (Z)-3-(3,4-dihydroxyphenyl)prop-2-enoic acid, Caffeate, Caffeic acid, cis-

CAS 4361-87-9Formula C9H8O4Molar mass 180.16 g/mol
1 supplier listed
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Caffeic acid, (Z)- chemical structure, C9H8O4, CAS 4361-87-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
4361-87-9
Formula
C9H8O4
Molar mass
180.16 g/mol
HS code
291829
Category
Aromatic building blocks

What is Caffeic acid, (Z)-?

Plain description, key identifiers and synonyms

Cis-caffeic acid is the cis-isomer of caffeic acid. It has a role as a plant metabolite and a human xenobiotic metabolite. It is a conjugate acid of a cis-caffeate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(Z)-3-(3,4-dihydroxyphenyl)prop-2-enoic acid
CAS number
4361-87-9
Molecular formula
C9H8O4
InChIKey
QAIPRVGONGVQAS-RQOWECAXSA-N
InChI
InChI=1S/C9H8O4/c10-7-3-1-6(5-8(7)11)2-4-9(12)13/h1-5,10-11H,(H,12,13)/b4-2-
Canonical SMILES
O=C(O)C=Cc1ccc(O)c(O)c1
Isomeric SMILES
C1=CC(=C(C=C1/C=C\C(=O)O)O)O

Synonyms

  • (Z)-3-(3,4-dihydroxyphenyl)prop-2-enoic acid
  • Caffeate
  • Caffeic acid, cis-
  • 3,4-Dihydroxy-trans-cinnamic acid

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
180.16 g/molcalc.
Exact mass
180.0423 Dacalc.
LogP (octanol/water)
1.2calc.
Topological polar surface area
77.76 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
2calc.
Heavy atoms
13calc.
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

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.

Caffeic acid, (Z)- 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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Caffeic acid, (Z)- price

Indicative price range per kg from live supplier offers

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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

Roles

  • animal metabolite
  • eukaryotic metabolite
  • human metabolite
  • human xenobiotic metabolite
  • mammalian metabolite
  • metabolite
  • plant metabolite
  • xenobiotic 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 Caffeic acid, (Z)- is traded under.

HS 2918.29Indicative HS code

Carboxylic acids, (with phenol function but without other oxygen function), their anhydrides, halides…

World exports in 2024
$861M
+0.9% vs 2023, imports $892M
2019 to 2024
Top exporters
  1. China30.5%
  2. South Korea18.3%
  3. Switzerland * partner reported13.3%
Top importers
  1. United States14.7%
  2. Germany13.3%
  3. Japan10.3%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Caffeic acid, (Z)-, based on the data on this page

What is Caffeic acid, (Z)-?

Cis-caffeic acid is the cis-isomer of caffeic acid. It has a role as a plant metabolite and a human xenobiotic metabolite. It is a conjugate acid of a cis-caffeate.

What is the CAS number of Caffeic acid, (Z)-?

The CAS registry number of Caffeic acid, (Z)- is 4361-87-9.

What is the molecular formula and weight of Caffeic acid, (Z)-?

The molecular formula of Caffeic acid, (Z)- is C9H8O4 and its molar mass is 180.16 g/mol.

What is Caffeic acid, (Z)- used for?

Known uses and roles of Caffeic acid, (Z)- include building blocks in research and laboratory, screening compounds in research and laboratory, animal metabolite, eukaryotic metabolite, human metabolite and 5 more.

Is Caffeic acid, (Z)- hazardous?

No GHS hazard classification for Caffeic acid, (Z)- 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 Caffeic acid, (Z)-?

Caffeic acid, (Z)- is usually classified under HS code 291829 (Carboxylic acids with phenol function but without other oxygen function, their…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Caffeic acid, (Z)-?

CompoundList lists 1 supplier of Caffeic acid, (Z)- 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 Caffeic acid, (Z)-?

Suppliers quote Caffeic acid, (Z)- 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 Caffeic acid, (Z)-

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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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