ChemicalBook >> CAS DataBase List >>4-Formylphenoxyacetic acid

4-Formylphenoxyacetic acid

CAS No.
22042-71-3
Chemical Name:
4-Formylphenoxyacetic acid
Synonyms
4-Formyl-PAA;AKOS B004256;AKOS AU36-M42;ASISCHEM R21550;4-FORMYL-PAA LINKER;4-FORMYLPHENOXYACETIC ACID;P-FORMYLPHENOXYACETIC ACID;(4-formylphenoxy)-aceticaci;4-FormylphenoxyaceticAcid>2-(4-formylphenoxy)aceticaci
CBNumber:
CB3114243
Molecular Formula:
C9H8O4
Molecular Weight:
180.16
MDL Number:
MFCD00016613
MOL File:
22042-71-3.mol
MSDS File:
SDS
Last updated:2026-05-28 00:55:38

4-Formylphenoxyacetic acid Properties

Melting point 193-196 °C
Boiling point 272.96°C (rough estimate)
Density 1.2933 (rough estimate)
refractive index 1.4500 (estimate)
storage temp. Inert atmosphere,2-8°C
solubility Soluble in hot methanol within almost transparency.
form Crystalline Powder
pka 3.04±0.10(Predicted)
color Beige
Sensitive Air Sensitive
BRN 779885
InChI InChI=1S/C9H8O4/c10-5-7-1-3-8(4-2-7)13-6-9(11)12/h1-5H,6H2,(H,11,12)
InChIKey OYNIIKHNXNPSAG-UHFFFAOYSA-N
SMILES C(O)(=O)COC1=CC=C(C=O)C=C1
CAS DataBase Reference 22042-71-3(CAS DataBase Reference)
EPA Substance Registry System Acetic acid, (4-formylphenoxy)- (22042-71-3)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P280a-P304+P340-P405-P501a-P261-P305+P351+P338
target organs Respiratory system
PPE dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes  Xn,Xi
Risk Statements  22-36/37/38
Safety Statements  26-36
WGK Germany  3
TSCA  TSCA listed
HazardClass  IRRITANT
HS Code  29189900
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral
Eye Irrit. 2
Skin Irrit. 2
STOT SE 3
NFPA 704
0
0 0

4-Formylphenoxyacetic acid price More Price(33)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical F0319 4-Formylphenoxyacetic Acid >97.0%(HPLC)(T) 22042-71-3 25g $178 2021-12-16 Buy
Apolloscientific OR930525 4-Formylphenoxyacetic acid >96% 22042-71-3 5g $21 2026-06-04 Buy
Apolloscientific OR930525 4-Formylphenoxyacetic acid >96% 22042-71-3 25g $54 2026-06-04 Buy
ChemScene CS-0137169 4-Formylphenoxyacetic acid ≥98% 22042-71-3 10g $20 2026-06-04 Buy
Apolloscientific OR930525 4-Formylphenoxyacetic acid >96% 22042-71-3 100g $209 2026-06-04 Buy
Product number Packaging Price Buy
F0319 25g $178 Buy
OR930525 5g $21 Buy
OR930525 25g $54 Buy
CS-0137169 10g $20 Buy
OR930525 100g $209 Buy

4-Formylphenoxyacetic acid Chemical Properties, Uses, Production

Chemical Properties

BEIGE CRYSTALLINE POWDER

Uses

4-Formylphenoxyacetic acid is used as an organic chemical synthesis intermediate.

General Description

4-Formylphenoxyacetic acid is a formylphenoxyaliphatic acid that reacts with dimedone to form 1,8-dioxo-octahydroxanthenes. It participates in the synthesis of 4-substituted benzaldehyde derivatives and 4-carboxypheoxyacetic acid.

Synthesis

4-Hydroxybenzaldehyde

123-08-0

Bromoacetic acid

79-08-3

4-Formylphenoxyacetic acid

22042-71-3

The general procedure for the synthesis of 2-(4-formylphenoxy)acetic acid from p-hydroxybenzaldehyde and bromoacetic acid was as follows: potassium carbonate (24.9 g, 180.0 mmol) was added to a solution of 4-hydroxybenzaldehyde (10.0 g, 82.0 mmol) in acetone (150 mL) and the reaction mixture was stirred for 15 min at 40 °C. Subsequently, bromoacetic acid (12.0 g, 86.0 mmol) was added slowly in batches and the reaction mixture was heated to reflux for 18 hours. After completion of the reaction, the reaction mixture was cooled and diluted by adding water (200 mL). The reaction mixture was extracted with ethyl acetate (2 x 200 mL) and after combining the organic phases, the aqueous layer was adjusted to pH 2 with 6N hydrochloric acid. the aqueous layer was again extracted with ethyl acetate (2 x 400 mL), the organic phases were combined and washed with water (200 mL), dried with anhydrous sodium sulfate and finally concentrated under vacuum. The residue was ground with isohexane to afford the target compound 2-(4-formylphenoxy)acetic acid (13.5 g, 91% yield) as a creamy white solid.1H NMR (d6-DMSO) δ: 13.12 (br s, 1H), 9.87 (s, 1H), 7.88-7.85 (m, 2H), 7.12-7.10 (m, 2H). 4.83 (s, 2H).

References

[1] Patent: WO2015/86509, 2015, A1. Location in patent: Page/Page column 92; 93
[2] Main Group Metal Chemistry, 2015, vol. 38, # 5-6, p. 157 - 164
[3] Patent: WO2004/89945, 2004, A1. Location in patent: Page 8
[4] European Journal of Medicinal Chemistry, 2015, vol. 95, p. 230 - 239

Global Suppliers ( 158)
Supplier Tel Email Country ProdList Advantage
Changzhou Yinghao Technology Development Co., Ltd 15151934985 sales@yingsapharm.com China 5455 58
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Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
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Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81
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Nanjing Chemlin Chemical Co., Ltd 025-83697070 13770331960 info@chemlin.com.cn China 16305 64
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64
Shandong Xiya Chemical Co., Ltd 13355009207 13355009207 3007715519@qq.com China 18722 57

View Latest Price from 4-Formylphenoxyacetic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
4-Formylphenoxyacetic acid pictures 2026-08-25 4-Formylphenoxyacetic acid
22042-71-3
$3.00-9.00 99% ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
2-(4-formylphenoxy)acetic acid pictures 2019-07-06 2-(4-formylphenoxy)acetic acid
22042-71-3
$1.00 1KG 98% 100KG Career Henan Chemical Co
4-FORMYLPHENOXYACETIC ACID 4-Formyl-PAA 4-Formylphenoxyacetic acid,99% 4-Formylphenoxyacetic acid >=97.0% (T) ASISCHEM R21550 AKOS AU36-M42 AKOS B004256 4-FORMYL-PAA LINKER (4-formylphenoxy)-aceticaci P-FORMYLPHENOXYACETIC ACID 4-FormylphenoxyaceticAcid> Acetic acid, 2-(4-formylphenoxy)- 2-(4-formylphenoxy)aceticaci 4-Formylphenoxyacetic acid-98% 22042-71-3 CARBOXYLIC ACID Analytical Chromatography Product Catalog Alphabetic FM - FZ Analytical Standards Phenoxyacetic Acids and Alcohols (substituted) Alphabetic Analytical Standards Analytical/Chromatography Building Blocks C9 Carbonyl Compounds Chemical Synthesis FM - FZ Organic Building Blocks Aldehydes C9Alphabetic Carbonyl Compounds F FM - FZ