Caffeic acid

Modify Date: 2026-06-30 10:18:48

Caffeic acid Structure
Caffeic acid structure
Common Name Caffeic acid
CAS Number 331-39-5 Molecular Weight 180.157
Density 1.5±0.1 g/cm3 Boiling Point 416.8±35.0 °C at 760 mmHg
Molecular Formula C9H8O4 Melting Point 211-213 °C (dec.)(lit.)
MSDS Chinese USA Flash Point 220.0±22.4 °C
Symbol GHS07 GHS08
GHS07, GHS08
Signal Word Warning

 Use of Caffeic acid


Caffeic acid is an inhibitor of both TRPV1 ion channel and 5-Lipoxygenase (5-LO).

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name cis-caffeic acid
Synonym More Synonyms

 Caffeic acid Biological Activity

This table contains bioactivity, target information and biological‑assay experimental data of this compound.

Description Caffeic acid is an inhibitor of both TRPV1 ion channel and 5-Lipoxygenase (5-LO).
Related Catalog
Target

Human Endogenous Metabolite

In Vitro Caffeic acid has inhibitory effects on histamine-induced responses and the inhibitory effect of Caffeic acid is gradually increased when the concentration used for pretreatment is increased from 0.1 to 1 mM, similar to typical dose-dependent responses. Pretreatment of HEK293T-TRPV1 cells with 1 mM Caffeic acid results in significant inhibition of capsaicin-induced responses. When lower concentration of Caffeic acid is used, the inhibitory effect for capsaicin-induced responses is less evident. Calcium imaging experiments show that Caffeic acid incubation results in significant inhibition in histamine-sensitive dorsal root ganglion (DRG) neurons. Pretreatment with Caffeic acid (1 mM) results in a significant decrease in the percentage of responsive DRG neurons to histamine application from 12.5% to 2.1%. Pretreatment with 1 mM Caffeic acid dramatically blocks the allylisothiocyanate (AITC)-induced intracellular calcium increase in TRPA1-expressing cells. Caffeic acid is also able to block the AITC-induced activation of TRPA1[1].
In Vivo Mice pretreated with Caffeic acid (500 mg/kg) exhibit significantly less histamine-induced scratching (30.50±10.87 bouts/1 h, n=6). It is further found that the lower dose of Caffeic acid (100 mg/kg) is not significantly effective in terms of anti-scratching effects in histamine-induced scratching, although there appears to be a tendency of reduction (49.40±12.35 bouts/1 h, n=5). The chloroquine induced scratching is significantly inhibited by pretreatment with 500 mg/kg of Caffeic acid (161.6±31.42 bouts/1 h, n=5)[1].Caffeic acid significantly reduces the expression of 5-LO mRNA (P<0.01) dose-dependently in hippocampus. Compare with the ischemia-reperfusion (I/R) non-treated group, 5-LO protein expression is significantly reduced in the I/R-Caffeic acid group (P<0.05 or P<0.01), especially in the I/R-Caffeic acid group (50 mg/kg). Compare with the I/R non-treated group, the latency to find platform is significantly shortened in low- and high-dose Caffeic acid groups, the shortened platform latency is most evident in the I/R- Caffeic acid group (50 mg/kg) (P<0.01). In the low-dose Caffeic acid group, cell injury is still marked, the pyknosis ratio is (63.6±2.8)%, whereas in the high-dose Caffeic acid group, hippocampal neuron karyopyknosis is significantly reduced and the pyknosis ratio is (13.3±3.0)%[2].
Cell Assay To determine cell viability, MTT assay is performed. HEK293T cells are cultured in 96-well plate at 37°C, a day before so that the confluence of cell is 85 to 90% on the actual day of the experiment. On the day of the experiment the cells are treated with different concentration of Caffeic acid for 10 min. Control cells are treated only with media. After removing supernatant and washing with PBS, MTT reagent (5 mg/mL) is added directly to fresh media. Cells are then incubated at 37°C for additional 4 h followed by draining of the media and overnight storage in dark condition. The next day, DMSO is added to each well and mixed in shaker for 10 min after which plate is read using microplate recorder at 490 nm with a reference wavelength of 620 nm. The relative cell viability (%) is expressed as a percentage relative to the untreated control cells[1].
Animal Admin Rats are divided into five groups: the sham group (n=9), ischemia-reperfusion (I/R) non-treated group (n=9), I/R-Caffeic acid group (10 mg/kg) (n=9), I/R-Caffeic acid group (30 mg/kg) (n=9) and I/R- Caffeic acid group (50 mg/kg) (n=9). In I/R-Caffeic acid groups, the rats are administrated Caffeic acid at 10, 30, 50 mg/kg (prepared with 0.3% sodium carboxymethyl cellulose) by intraperitoneal injection at 30 min prior to ischemia. The sham group and I/R group are treated with an equal volume of 0.3% sodium carboxymethyl cellulose[2].
References

[1]. Pradhananga S, et al. Caffeic acid exhibits anti-pruritic effects by inhibition of multiple itch transmission pathways in mice. Eur J Pharmacol. 2015 Sep 5;762:313-21.

[2]. Liang G, et al. The protective effect of caffeic acid on global cerebral ischemia-reperfusion injury in rats. Behav Brain Funct. 2015 Apr 18;11:18.

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.5±0.1 g/cm3
Boiling Point 416.8±35.0 °C at 760 mmHg
Melting Point 211-213 °C (dec.)(lit.)
Molecular Formula C9H8O4
Molecular Weight 180.157
Flash Point 220.0±22.4 °C
Exact Mass 180.042252
PSA 77.76000
LogP 1.42
Vapour Pressure 0.0±1.0 mmHg at 25°C
Index of Refraction 1.707
InChIKey QAIPRVGONGVQAS-DUXPYHPUSA-N
SMILES O=C(O)C=Cc1ccc(O)c(O)c1
Stability Stable. Combustible. Incompatible with strong oxidizing agents, strong bases.
Water Solubility soluble in hot water

 MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

 Toxicological Information

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :
GD8950000
CHEMICAL NAME :
Cinnamic acid, 3,4-dihydroxy-
CAS REGISTRY NUMBER :
331-39-5
LAST UPDATED :
199510
DATA ITEMS CITED :
12
MOLECULAR FORMULA :
C9-H8-O4
MOLECULAR WEIGHT :
180.17
WISWESSER LINE NOTATION :
QV1U1R CQ DQ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
1500 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
>721 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
728 gm/kg/2Y-C
TOXIC EFFECTS :
Tumorigenic - Carcinogenic by RTECS criteria Gastrointestinal - tumors Kidney, Ureter, Bladder - Kidney tumors
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
1613 gm/kg/96W-C
TOXIC EFFECTS :
Tumorigenic - neoplastic by RTECS criteria Kidney, Ureter, Bladder - Kidney tumors
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Intraperitoneal
DOSE :
480 mg/kg
SEX/DURATION :
female 5-12 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Specific Developmental Abnormalities - musculoskeletal system

MUTATION DATA

TYPE OF TEST :
Cytogenetic analysis
TEST SYSTEM :
Rodent - hamster Ovary
DOSE/DURATION :
200 mg/L
REFERENCE :
CALEDQ Cancer Letters (Shannon, Ireland). (Elsevier Scientific Pub. Ireland Ltd., POB 85, Limerick, Ireland) V.1- 1975- Volume(issue)/page/year: 14,251,1981 *** REVIEWS *** IARC Cancer Review:Animal Sufficient Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 56,115,1993 IARC Cancer Review:Human No Available Data IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 56,115,1993 IARC Cancer Review:Group 2B IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 56,115,1993 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X7346 No. of Facilities: 10 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 80 (estimated) No. of Female Employees: 70 (estimated)

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Symbol GHS07 GHS08
GHS07, GHS08
Signal Word Warning
Hazard Statements H315-H319-H335-H351-H361
Precautionary Statements P261-P281-P305 + P351 + P338
Personal Protective Equipment Eyeshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges
Hazard Codes Xn:Harmful
Risk Phrases R36/37/38;R40
Safety Phrases S26-S36/37/39
RIDADR NONH for all modes of transport
WGK Germany 3
RTECS GD8950000
HS Code 2942000000

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code 2918290000
Summary HS: 2918290000 other carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) VAT:17.0% MFN tariff:6.5% General tariff:30.0%

 Articles280

More Articles

This table lists relevant public references with title, journal and publication metadata for this compound.

Antimicrobial activity of natural products from the flora of Northern Ontario, Canada.

Pharm. Biol. 53(6) , 800-6, (2015)

The number of multidrug resistant (MDR) microorganisms is increasing and the antimicrobial resistance expressed by these pathogens is generating a rising global health crisis. In fact, there are only ...

The hepatoprotection of caffeic acid and rosmarinic acid, major compounds of Perilla frutescens, against t-BHP-induced oxidative liver damage.

Food Chem. Toxicol. 55 , 92-9, (2013)

Perilla frutescens leaves are often used in East Asian gourmet food. In this study, we investigated the hepatoprotective effects of caffeic acid (CA), rosmarinic acid (RA), and their combination. P. f...

Effect of selected Saccharomyces cerevisiae yeast strains and different aging techniques on the polysaccharide and polyphenolic composition and sensorial characteristics of Cabernet Sauvignon red wines.

J. Sci. Food Agric. 95 , 2132-44, (2015)

The objective of this work was to study the effect of two Saccharomyces cerevisiae yeast strains with different capabilities of polysaccharide liberation during alcoholic fermentation in addition to s...

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

CAFFIC ACID
Caffeicacid
MFCD00004392
3,4-dihydroxyben
3,4-Dihydroxycinnamic acid,predominantly trans isomer
Caffeic
3,4-Dihydroxycinnamic acid
EINECS 206-361-2
3,4-Dihydroxy cinnamic acid
CaffeicAcidPure
Caffeic acid
3-(3,4-Dihydroxyphenyl)acrylic acid

 Caffeic acid | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the molecular formula of cis-caffeic acid?
A: Molecular formula of cis-caffeic acid is C9H8O4.
Q: What are the upstream materials of cis-caffeic acid?
A: Related upstream materials(CAS) of cis-caffeic acid: 40918-96-5;67879-58-7;141-82-2;139-85-5;1225064-75-4;1346257-27-9;140-10-3.
Q: What is the English name of cis-caffeic acid?
A: The English name of cis-caffeic acid is cis-caffeic acid.
Q: What is the melting point of cis-caffeic acid?
A: Melting point of cis-caffeic acid is 211-213 °C (dec.)(lit.).
Q: What is the molecular weight of cis-caffeic acid?
A: Molecular weight of cis-caffeic acid is 180.157.
Q: What is the SMILES notation of cis-caffeic acid?
A: SMILES notation of cis-caffeic acid is O=C(O)C=Cc1ccc(O)c(O)c1.
Q: How is the water solubility of cis-caffeic acid?
A: Water solubility of cis-caffeic acid: soluble in hot water.
Q: What is the LogP of cis-caffeic acid?
A: LogP of cis-caffeic acid is 1.42.
Q: What English synonyms does cis-caffeic acid have?
A: English synonyms of cis-caffeic acid: CAFFIC ACID, Caffeicacid, MFCD00004392, 3,4-dihydroxyben, 3,4-Dihydroxycinnamic acid,predominantly trans isomer, Caffeic, 3,4-Dihydroxycinnamic acid, EINECS 206-361-2, 3,4-Dihydroxy cinnamic acid, CaffeicAcidPure, Caffeic acid, 3-(3,4-Dihydroxyphenyl)acrylic acid.
Q: What is the polar surface area (PSA) of cis-caffeic acid?
A: Polar surface area (PSA) of cis-caffeic acid is 77.76000.

 Caffeic acidfactory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
BioBioPha
Dayang Chem (Hangzhou) Co., Ltd.
naturewill
Henan Tianfu Chemical Co., Ltd.
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