- ▸ High-activity Type I alpha-aminoketone photoinitiator for fast through-cure of pigmented and dark UV coatings (Coatings & Construction)
- ▸ Strong cure of black/pigmented UV inks, solder masks and screen inks (Industrial Manufacturing)
- ▸ Cures pigmented UV-curable plastics, adhesives and photoresists (Plastics & Polymers)
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 →This photoinitiator (CAS 119313-12-1) is 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)butanone, a pale powder. Identity: PubChem.
What it is
A Type I α-aminoketone that cleaves efficiently with absorption suited to pigmented and imaging systems. Like other aminoketones it is high-activity and is balanced for yellowing in clears.
How it cures
This photoinitiator is a high-activity Type I α-aminoketone for pigmented UV systems, especially where strong long-UV cure is needed (it is widely used in color-filter and pigmented imaging resists).
Applications
It is used in pigmented UV inks and coatings, color filters and photoresists, often with a thioxanthone (ITX) and amine synergist; compare the related aminoketone 2-methyl-4′-(methylthio)-2-morpholinopropiophenone.
Forms, grades and handling
This photoinitiator is supplied as a pale powder. Photoinitiators are light-sensitive — store cool and dark. Many are fine powders or liquids that require dust/handling controls per the current Safety Data Sheet (SDS). Each lot ships with a Certificate of Analysis (CoA) and Technical Data Sheet (TDS).
Bulk supply and RFQ
RawSource sources this photoinitiator direct from producers in bulk, with CoA, TDS and SDS per lot. Tell us your lamp (mercury or LED wavelength), system (clear or pigmented) and cure target, and we will quote the right grade or blend. Compare the full range and selection logic in the photoinitiators guide.
Typical Properties
Typical reference values, not a specification; the Certificate of Analysis (CoA) for the lot governs.
| Property | Typical Value |
|---|---|
| Chemical / type | 2-Benzyl-2-dimethylamino-1-(4-morpholinophenyl)butanone — Photoinitiator (Type I, aminoketone) |
| Type | Type I (cleavage), α-aminoketone |
| Cure | Pigmented / imaging systems; high activity |
| Appearance | Pale powder |
| CAS Number | 119313-12-1 |
| Molecular Formula | C23H30N2O2 |
| Handling | Light-sensitive; refer to the current SDS |
Regulatory & registration requirements
- TSCA (US):
- REACH (EU):
- EC number: 404-360-3
TSCA Inventory flag PMN: a commenced PMN (premanufacture notice) substance (EPA flag legend).
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
Regulatory restriction status
2-Benzyl-2-dimethylamino-1-(4-morpholinophenyl)butanone (CAS 119313-12-1) appears on the regulatory list(s) below. This is public regulatory information about the substance — not a statement about any specific supplier’s material, and not a safety claim. Confirm the current status for your jurisdiction and intended use.
- REACH SVHC Candidate List (EU): listed 16 Jan 2020 on the basis of toxic for reproduction (Art. 57(c)). SVHC status triggers EU supplier-communication and notification duties above 0.1% w/w; it is not, by itself, a ban on sale.
Sources: ECHA Candidate List / Annex XIV / Annex XVII (echa.europa.eu); U.S. EPA TSCA; UN Stockholm Convention / EU POPs Regulation; California OEHHA Proposition 65 list. Retrieved 2026-07-13.
Frequently Asked Questions
What is 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)butanone used for?
2-Benzyl-2-dimethylamino-1-(4-morpholinophenyl)butanone (CAS 119313-12-1) is a high-activity Type I aminoketone used in pigmented UV inks and coatings, color filters and photoresists, often with a thioxanthone and amine synergist.
How does this photoinitiator compare to 2-methyl-4′-(methylthio)-2-morpholinopropiophenone?
Both are Type I aminoketones for pigmented systems; this one is often chosen for color-filter and imaging work and higher activity, 2-methyl-4′-(methylthio)-2-morpholinopropiophenone as a broader pigmented-cure workhorse.
Does this photoinitiator yellow?
As an aminoketone it can contribute yellowing, so it is used mainly in pigmented/imaging systems where that is less critical.
What is the CAS of this photoinitiator?
It is CAS 119313-12-1 (PubChem CID 86171). The CoA documents grade.
How is this photoinitiator supplied and quoted in bulk?
RawSource supplies it as a powder in bulk with CoA, TDS and SDS. Pricing is quote-based on grade and volume; submit an RFQ.
What is the REACH and TSCA regulatory status of 2-Benzyl-2-dimethylamino-1-(4-morpholinophenyl)butanone?
2-Benzyl-2-dimethylamino-1-(4-morpholinophenyl)butanone (CAS 119313-12-1) is subject to U.S. TSCA Inventory requirements; supplying it into the EU requires valid REACH registration ((EC) No 1907/2006). RawSource cannot verify a third-party supplier's registrations — buyers should require documented TSCA and REACH compliance for their jurisdiction and volume (EC 404-360-3).