At a Glance
Material Family
Specialty Additives
Record Type
Compound
Primary Role
Crosslinking / Curing · Synthesis Intermediate
Functional Roles
Industries Served
Applications & Use Cases
- ▸ Acts as a radical photoinitiator in UV-curable coatings, inks, and adhesives, where photolysis of the alpha-hydroxy ketone generates benzoyl radicals that initiate free-radical polymerization of acrylate and unsaturated systems.
- ▸ Used as a degassing and anti-pinhole additive in thermosetting powder coatings, where it helps release entrapped volatiles during cure to give a smoother, defect-free film.
- ▸ Serves as a synthesis intermediate and building block in fine-chemical manufacturing, including oxidation to benzil and onward chemistry toward benzilic acid and related diaryl compounds.
- ▸ Employed as a cure accelerator and initiator in unsaturated polyester resin formulations for fiberglass, castings, and composite laminates.
- ▸ Functions as a laboratory reagent and reference standard for analytical, electrochemical, and organic-synthesis applications.
Physical Properties
Appearance
Off-white to pale-yellow crystalline solid
Odor
Faint camphor-like odor
Melting Point
133-137 °C
Boiling Point
344 °C at 760 mmHg
Density
1.31 g/cm³ at 20 °C
Water Solubility
~0.3 mg/mL at 25 °C (slightly soluble)
Molecular Weight
212.24 g/mol
Safety & Handling
Full SDS available on request
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Request SDS →
Chemical Identity
CAS Number
119-53-9
Molecular Formula
C14H12O2
Molecular Weight
212.24 g/mol
IUPAC Name
2-hydroxy-1,2-diphenylethanone
PubChem CID
InChI Key
ISAOCJYIOMOJEB-UHFFFAOYSA-N
Synonyms & Trade Names
Full Description
Regulatory & registration requirements
- TSCA (US):
- REACH (EU):
- EC number: 204-331-3
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
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Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.