4,4′-Dimethoxybenzoin
4,4′-Dimethoxybenzoin (CAS: 119-52-8) is an organic compound with the molecular formula C16H16O4 and a molecular weight of 272.30 g/mol. It functions as a photoinitiator, playing a key role in various polymerisation processes. This compound is valuable in materials science and polymer chemistry for its specific photochemical properties, enabling controlled curing and crosslinking reactions essential in manufacturing and research applications.
- IUPAC
- 2-Hydroxy-4′-methoxy-2-(4-methoxyphenyl)acetophenone,p-Anisoin
- Synonyms
- 2-Hydroxy-2-(4-methoxyphenyl)-1-(4-methoxyphenyl)ethanonep-Anisoin

Organic Photoinitiator
As an organic photoinitiator, 4,4′-Dimethoxybenzoin absorbs UV light to generate reactive species that initiate polymerisation. This makes it suitable for applications in UV-curable coatings, inks, and adhesives, enabling rapid curing upon exposure to ultraviolet radiation.
Polymerisation Reagent
This compound serves as a reagent in polymerisation processes, particularly for free-radical polymerisation. Its photochemical activity allows for controlled initiation, contributing to the synthesis of polymers with specific properties and molecular weights.
Materials Science Research
In materials science, 4,4′-Dimethoxybenzoin is utilised in the development and study of new polymeric materials. Its application in photopolymerisation enables the fabrication of complex structures and functional materials for advanced technological applications.
| Molecular weight | 272.30 |
|---|---|
| Linear formula | 4-(CH3O)C6H4CH(OH)COC6H4-4-(OCH3) |
| Assay | 95% |
| Melting point | 108-111 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Gene Information | human ... ACHE(43), BCHE(590), CES1(1066) |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 4,4′-Dimethoxybenzoin primarily used for?
+
4,4′-Dimethoxybenzoin is primarily used as an organic photoinitiator in polymerisation processes and in materials science research.
What are the CAS number and molecular formula for 4,4′-Dimethoxybenzoin?
+
The CAS number for 4,4′-Dimethoxybenzoin is 119-52-8, and its molecular formula is C16H16O4.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 4,4′-Dimethoxybenzoin with an assay of 95%. We do not represent this product as USP, BP, or EP grade.
What safety precautions should be taken when handling 4,4′-Dimethoxybenzoin?
+
When handling 4,4′-Dimethoxybenzoin, it is essential to wear eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used if respiratory protection is needed. It is classified with WGK 3 in Germany, indicating a high hazard to water.
How is 4,4′-Dimethoxybenzoin packed, shipped, and exported?
+
Tech Serve Solutions provides expert packing, shipping, and export services for 4,4′-Dimethoxybenzoin, ensuring compliance with international regulations for chemical transport.
How can I request a sample or quote for 4,4′-Dimethoxybenzoin?
+
To request a sample or obtain a quote for 4,4′-Dimethoxybenzoin, please contact our sales team through the designated channels on our website.
▶ Related products

(−)-Curcumol
C15H24O2
Cell Biology
(±) Clopidogrel hydrogensulfate
Cell Biology

(±)-L-Alliin
C6H11NO3S
Cell Biology
(±)-2-Amino-4-phosphonobutyric acid
C4H10NO5P
Cell Biology
(±)-2-Methylarachidonoyl-2′-fluoroethylamide
C23H38NOF
Cell Biology
(±)-3,4-Methylenedioxy-N-ethylamphetamine hydrochloride
Cell Biology

(±)-3,4-Methylenedioxyamphetamine hydrochloride
Cell Biology

(±)-3,4-Methylenedioxymethamphetamine hydrochloride
Cell Biology
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis