Photoinitiator MBP (4-Methylbenzophenone) CAS No.: 134-84-9 | Purity: 99% Min | UV-Curing Grade

Short Description:

4-Methylbenzophenone (MBP) is a highly efficient UV photoinitiator commonly used in UV-curable systems including inks, coatings, adhesives, and varnishes. With a purity of ≥99%, it offers excellent photochemical reactivity, low volatility, and broad compatibility with unsaturated resins, making it a popular choice for high-performance industrial formulations.

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Product Detail

Product Tags

Breif introduction:

Parameter	Details
Product Name	4-Methylbenzophenone (Photoinitiator MBP)
CAS Number	134-84-9
Molecular Formula	C14H12O
Molecular Weight	196.24 g/mol
Chemical Structure	(optional)
Purity	≥99.0% (HPLC)
Appearance	White to off-white crystalline powder
Odor	Slight aromatic odor
Melting Point	58–62 °C
Boiling Point	310 °C
Solubility	Soluble in organic solvents (e.g., ethanol, acetone, toluene)

Advantages

High Purity ≥99% – Ensures consistent photoreactivity and minimal impurities in cured films.
Efficient UV Absorption – Strong absorption in the 300–360 nm UV range, ideal for UV-A initiated systems.
Low Volatility – Ensures process stability in high-temperature or high-speed curing applications.
Excellent Compatibility – Works well with acrylate resins, epoxy acrylates, polyester acrylates, etc.
Broad Industrial Use – Applicable across UV-curable inks, coatings, adhesives, and electronics.

Applications

Industry	Application Details
UV-Curable Inks	Improves curing speed and print definition in flexographic, gravure, and screen printing
UV Coatings	Used in protective and decorative coatings for wood, plastic, and metal surfaces
UV Adhesives	Enhances bonding strength and reduces curing time in industrial adhesives
Electronics & Packaging	Used in photolithography and UV-sensitive packaging materials

Specification

Item	Specification	Test Method
Appearance	White to off-white powder	Visual
Assay (Purity)	≥99.0%	HPLC
Melting Point	58–62 °C	DSC
Volatile Matter	≤0.5%	Gravimetric Method
Residue on Ignition	≤0.1%	600°C Burn Test
UV Absorption λmax	~310 nm	UV-Vis Spectroscopy

Safety

Parameter	Details
Hazard Classification	Not classified as hazardous under GHS
Storage Conditions	Keep in tightly sealed containers, store in a dry, cool area away from direct sunlight
Personal Protection	Wear gloves, goggles, and protective clothing when handling
Shelf Life	24 months (in original sealed packaging)
Transportation	Non-dangerous goods; can be shipped by air, sea, or land

Packaging

Packaging Options	1kg / 5kg / 25kg fiber drums or aluminum foil bags
Minimum Order Quantity	1kg (sample orders accepted)
Lead Time	In stock: 3–5 working days; Customized: 7–10 days
Shipping Options	Express, air freight, sea freight (FOB/CIF/DDP)