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4-Chlorocinnamic acid

CAS No.
1615-02-7
Chemical Name:
4-Chlorocinnamic acid
Synonyms
P-CHLOROCINNAMIC ACID;ARBA-033;AKOS 92736;orocinnamic acid;4-Chlorociamic acid;TIMTEC-BB SBB008203;RARECHEM BK HC T318;4-Chlorocinmic acid;p-chloro-cinnamicaci;4-CHLOROCINNAMIC ACID
CBNumber:
CB1114188
Molecular Formula:
C9H7ClO2
Molecular Weight:
182.6
MDL Number:
MFCD00004396
MOL File:
1615-02-7.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-27 23:04:14

4-Chlorocinnamic acid Properties

Melting point 248-250 °C(lit.)
Boiling point 260.71°C (rough estimate)
Density 1.2377 (rough estimate)
refractive index 1.5426 (estimate)
storage temp. Sealed in dry,Room Temperature
solubility DMSO (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)
pka 4.41(at 25℃)
form Fine Crystalline Powder
color White
BRN 1365308
InChI InChI=1S/C9H7ClO2/c10-8-4-1-7(2-5-8)3-6-9(11)12/h1-6H,(H,11,12)
InChIKey GXLIFJYFGMHYDY-ZZXKWVIFSA-N
SMILES C(O)(=O)C=CC1=CC=C(Cl)C=C1
CAS DataBase Reference 1615-02-7(CAS DataBase Reference)
EWG's Food Scores 1
NIST Chemistry Reference p-Chlorocinnamic acid(1615-02-7)
EPA Substance Registry System 2-Propenoic acid, 3-(4-chlorophenyl)- (1615-02-7)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335-H302
Precautionary statements  P261-P280a-P304+P340-P305+P351+P338-P405-P501a-P264-P270-P280-P301+P312+P330-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P501
PPE dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes  Xn,Xi
Risk Statements  22-36/37/38-20/21/22
Safety Statements  36-28A-26-24/25
WGK Germany  3
RTECS  GD8490000
Hazard Note  Irritant
HS Code  29163990
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral
REACH Registrations Active
NFPA 704
1
1 0

4-Chlorocinnamic acid price More Price(85)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich C31600 4-Chlorocinnamic acid 99% 1615-02-7 25g $91.9 2026-04-30 Buy
TCI Chemical C0149 4-Chlorocinnamic Acid >98.0%(T) 1615-02-7 25g $66 2026-04-30 Buy
TCI Chemical C0149 4-Chlorocinnamic Acid >98.0%(T) 1615-02-7 500g $411 2023-06-20 Buy
Usbiological 269326 4-Chlorocinnamic acid Asreported 1615-02-7 100g $402 2026-06-03 Buy
Usbiological 269326 4-Chlorocinnamic acid Asreported 1615-02-7 250g $566 2026-06-03 Buy
Product number Packaging Price Buy
C31600 25g $91.9 Buy
C0149 25g $66 Buy
C0149 500g $411 Buy
269326 100g $402 Buy
269326 250g $566 Buy

4-Chlorocinnamic acid Chemical Properties,Uses,Production

Chemical Properties

white to light yellow crystal powder

Uses

4-Chlorocinnamic Acid is a derivative of Cinnamic Acid (C442030) and plays an important role in the development of plants. 4-Chlorocinnamic Acid may also show potential antimicrobial, antioxidant, anti-inflammatory, and antitumoral activity.

Definition

ChEBI: 4-chlorocinnamic acid is an organochlorine compound comprising trans-cinnamic acid having a chloro substituent at the 4-position on the phenyl ring. It is functionally related to a trans-cinnamic acid.

Synthesis

To a 100mL three-necked round-bottomed flask, 1.41g (0.01mol) of p-chlorobenzaldehyde, 1.27g (0.011mol) of malonic acid, and 0.77g (0.01mol) of ammonium acetate were added and mixed well. A thermometer and a spherical condenser tube were connected and the reaction was carried out in a microwave reactor. After the reaction was completed, 5 mL of water was heated into the flask and the unreacted p-chlorobenzaldehyde was removed by distillation with water vapor. Add 10% sodium hydroxide solution 5mL to 6mL, add activated carbon to remove the color, extract filtration, transfer the filtrate to a beaker, acidify with concentrated hydrochloric acid until the Congo red paper turns blue or pH = 3 to 4. Cool to precipitate the crystals, extract filtration, wash the precipitate with a small amount of water, extract dry, and dry the crude product. Recrystallize with water-ethanol (1:3 v/v) and dry. The yield was calculated, and the optimal synthesis conditions were: material ratio of n(p-chlorobenzaldehyde):n(malonic acid):n(ammonium acetate) = 1.0:1.1:1.0, reaction time of 13 min, power of 800 W, and a yield of 85.8% under these conditions. Melting point determination and infrared spectral analysis were carried out. Compared with the traditional method, it has the advantages of short time, high yield and less pollution.

Purification Methods

Recrystallise the acid from EtOH or aqueous EtOH (charcoal). UV has max at 275nm (EtOH). [Walling & Wolfstirn J Am Chem Soc 69 852 1947, Beilstein 9 H 596, 9 II 395, 9 III 2727, 9 IV 2033.]

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View Lastest Price from 4-Chlorocinnamic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
4-Chlorocinnamic acid pictures 2026-09-02 4-Chlorocinnamic acid
1615-02-7
$1.20-36.00 1kg 99% Henan Fengda Chemical Co., Ltd
 4-Chlorocinnamic Acid pictures 2026-05-28 4-Chlorocinnamic Acid
1615-02-7
$10.00 1KG 99.8% 100tons Hebei Chuanghai Biotechnology Co,.LTD
4-Chlorocinnamic acid pictures 2026-05-11 4-Chlorocinnamic acid
1615-02-7
10g TargetMol Chemicals Inc.
(2E)-3-(4-chlorophenyl)acrylic acid 4-Chlorocinncmic Acid 2-propenoic acid, 3-(4-chlorophenyl)-, (2E)- PARA-CHLOROCINNAMICACID 4-Chlorocinnamic acid,trans-3-(4-Chlorophenyl)propenoic acid trans-4-Chlorocinnamic acid 98% 4-Chlorociamic acid (2E)-3-(4-Chlorophenyl)prop-2-enoic acid, (2E)-3-(4-Chlorophenyl)acrylic acid 3-(4-Chlorophenyl)propenoic acid 4-Chlorobenzeneacrylic acid 4-CHLOROCINNAMIC ACID AKOS 92736 3-(4-CHLOROPHENYL)ACRYLIC ACID TRANS-3-(4-CHLOROPHENYL)PROPENOIC ACID (2E)-3-(4-Chlorophenyl)-2-propenoic acid 2-Propenoic acid, 3-(4-chlorophenyl)- 3-(4-chlorophenyl)-2-propenoicaci 3-(4-chlorophenyl)-2-propenoicacid ARBA-033 TIMTEC-BB SBB008203 RARECHEM BK HC T318 orocinnamic acid (E)-3-(4-chlorophenyl)-2-propenoate 4-ChlorocinnaMic acid chlorocinnaMic acid 4-Chlorocinmic acid 3-(p-Chlorophenyl)acrylic acid 3-(p-chlorophenyl)acrylicacid Cinnamic acid, p-chloro- p-chloro-cinnamicaci trans-4-Chlorocinnamic acid β-(p-Chlorophenyl)-acrylicacid (2E)-3-(4-chlorophenyl)prop-2-enoic acid 4-CHLOROCINNAMIC ACID, 99%, PREDOMINANTL Y TRANS 4-Chlorocinnamic acid, predominantly trans, 99% 4-Chlorocinnamic acid 98% 4-Chlorocinnamic Acid > PARA-CHLOROCINNAMICACID,3-(4-Chlorophenyl)acrylic acid,Cinnamic acid,p-chloro,p-chloro-cinnamicaci,trans-4-chlorocinnamic acid,4- 4-Chlorocinnamic acid,predominantly trans-99% (E)-3-(4-chlorophenyl)prop-2-enoic acid P-CHLOROCINNAMIC ACID Recombinant human lysozyme (plant expression) 1615-02-7 C9Cl1H7O2 C9 Carbonyl Compounds Carboxylic Acids Building Blocks Organic Building Blocks Benzene series Cinnamic acid Aromatics Compounds Acids & Esters Chlorine Compounds Aromatics 1615-02-7 11