- ▸ 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 →Photoinitiator 369 (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
Photoinitiator 369 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
369 is used in pigmented UV inks and coatings, color filters and photoresists, often with a thioxanthone (ITX) and amine synergist; compare the related aminoketone 907.
Forms, grades and handling
Photoinitiator 369 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 Photoinitiator 369 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 | Photoinitiator 369 — 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
Photoinitiator 369 (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 Photoinitiator 369 used for?
Photoinitiator 369 (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 369 compare to 907?
Both are Type I aminoketones for pigmented systems; 369 is often chosen for color-filter and imaging work and higher activity, 907 as a broader pigmented-cure workhorse.
Does 369 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 Photoinitiator 369?
It is CAS 119313-12-1 (PubChem CID 86171). The CoA documents grade.
How is bulk Photoinitiator 369 supplied and quoted?
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 Photoinitiator 369 (2-Benzyl-2-dimethylamino-1-(4-morpholinophenyl)butanone)?
Photoinitiator 369 (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).