10-Phenylphenothiazine TCI P2470

Chemical Identity

Other names: PTH
CAS No.: 7152-42-3
PubChem: CID 95203·SID 468592611
Formula: C18H13NS
Molecular weight: 275.4 g/mol
Purity: >98.0%(GC)

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: 10-phenylphenothiazine
SMILES: C1=CC=C(C=C1)N2C3=CC=CC=C3SC4=CC=CC=C42
InChIKey: WSEFYHOJDVVORU-UHFFFAOYSA-N

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10-Phenylphenothiazine from TCI is an organic compound derived from phenothiazine, with a phenyl group attached to the nitrogen atom. In modern chemistry laboratories it is known as a metal-free organic photocatalyst: it absorbs light and then transfers an electron to a substrate. It is most important in photoredox chemistry, where light drives chemical reactions under relatively mild conditions. This makes it a useful reagent for research groups working on light-driven synthesis and polymer chemistry.

Its main advantage is that its excited state is a strong reductant, so it can reduce substrates that are otherwise hard to reduce, such as certain alkyl or aryl halides. It is a practical alternative to transition-metal photocatalysts such as iridium or ruthenium complexes, which are generally more expensive and leave metal residues in the product. It is widely used in metal-free, light-triggered atom transfer radical polymerization (metal-free photo-ATRP), which gives polymers free of metal contamination. Because it is a small organic molecule, its structure is also easy to modify. It therefore often serves as the starting scaffold in studies that design new photocatalysts with tailored redox properties.

In Indonesia, interest in photocatalysis and sustainable chemistry keeps growing, and 10-Phenylphenothiazine fits naturally into this kind of work. University research groups, polymer and materials science laboratories, and organic synthesis teams use it to explore photoredox reactions, to prepare metal-free polymers, and to compare organic catalysts with metal-based systems. Researchers who want to avoid costly metal catalysts or reduce metal residues in their products will find it a relevant choice for teaching and research.

TCI brochures (PDF)

Phenylphenothiazine (PTH) Derivatives 2026-09-16 · p. 1
Iridium Photoredox Catalyst with Highly Oxidizing Excited State 2023-07-21 · p. 2
RAFT Agents for Controlled Radical Polymerization 2025-01-14 · p. 2
Visible Light Photoredox Catalysts 2026-04-28 · p. 4
Organic Photoreaction Reagents 2025-02-13 · p. 4
Building Blocks for Organic Semiconductor 2026-03-24 · p. 34

Related TCI products

Metal-free photo-ATRP: the strongly reducing excited state activates alkyl halide initiators under light, producing well-defined polymers without metal contamination.
Photoredox organic synthesis: it absorbs light and transfers electrons to substrates, so radical transformations can run under relatively mild conditions without iridium or ruthenium complexes.
Reduction of hard-to-reduce substrates: its strong excited-state reducing power suits reactions with certain aryl or alkyl halides that milder photocatalysts cannot activate.
Photocatalyst design studies: as a small organic molecule with an easily modified structure, it is a common scaffold for building new catalysts with tailored redox properties.
Comparative and teaching studies: it is a clear benchmark for comparing metal-free organic photocatalysts with expensive transition-metal systems in research and advanced chemistry courses.

From the TCI brochure

Hole transporting material for solar cells
Organic electroluminescent material
Organic photocatalyst
Catalyst for organic atom transfer radical polymerization (O-ATRP)

Brand	TCI (product code P2470)
CAS number	7152-42-3
Molecular formula	—
Purity	—
Category	Chemistry > Catalysis and Inorganic Chemistry > Photocatalysts [Catalysis]
Pack sizes	available in TCI's standard pack sizes; please contact AMI Scientific for current options
Physical form	refer to the TCI Certificate of Analysis and product label
Storage	follow the storage conditions on the TCI label and Safety Data Sheet (SDS)

Data from the TCI brochure

Ukuran kemasan	1g / 5g

Source: TCI brochure FF161 (2026-09-16)

Keep 10-Phenylphenothiazine in its original tightly closed container, in a cool, dry, well-ventilated place away from strong oxidizing agents. Because it is a light-active photocatalyst, store it away from direct light, for example in amber glass or in a closed cabinet, to help preserve its quality. Always follow the storage temperature and conditions on the TCI label and SDS. Handle it following good laboratory practice, wearing safety glasses, chemical-resistant gloves and a lab coat. Avoid inhaling dust and avoid contact with skin and eyes. Weigh and transfer it in a fume hood or another well-ventilated area. Dispose of waste according to local regulations and your institution's chemical waste procedures.

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