1,3-Dihydro-1,3,3-trimethylspiro[2H-indole-2,3′-[3H]naphth[2,1-b][1,4]oxazine]
1,3-Dihydro-1,3,3-trimethylspiro[2H-indole-2,3′-[3H]naphth[2,1-b][1,4]oxazine] (CAS: 27333-47-7) is an organic compound with the molecular formula C22H20N2O and a molecular weight of 328.41. This material is recognised for its photochromic properties, making it suitable for applications where reversible colour change upon exposure to light is desired. It finds use in the development of advanced optical and photonic materials.
- IUPAC
- Photorome I
- Synonyms
- 3-trimethylspiro[2H-indole-2,3′-[3H]naphth[2,1-b][1,4]oxazine],Photorome I
![1,3-Dihydro-1,3,3-trimethylspiro[2H-indole-2,3′-[3H]naphth[2,1-b][1,4]oxazine] (C22H20N2O) — chemical structure, CAS 27333-47-7; Materials Science, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F27333-47-7.png&w=3840&q=75)
Photochromic Dyes
This compound functions as a photochromic dye, exhibiting a reversible colour change when exposed to light. This property is valuable for creating light-sensitive materials and coatings.
Organic and Printed Electronics
Its unique optical characteristics make it a candidate for use in organic electronic devices and printed electronics applications, contributing to the development of novel functional materials.
Photonic and Optical Materials
The material's interaction with light allows for its integration into photonic and optical systems. It can be used in applications requiring specific light modulation or responsive optical properties.
| Molecular weight | 328.41 |
|---|---|
| Empirical formula | C22H20N2O |
| Assay | ≥98.0% (HPLC) |
| Application | Photochromic dye. |
| Melting point | 128-130 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-37/39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 1,3-Dihydro-1,3,3-trimethylspiro[2H-indole-2,3′-[3H]naphth[2,1-b][1,4]oxazine] used for?
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This compound is primarily used as a photochromic dye and in the fields of organic and printed electronics, as well as photonic and optical materials.
What is the CAS number and molecular formula?
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The CAS number is 27333-47-7, and the molecular formula is C22H20N2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical with a purity of ≥98.0% (HPLC). We do not represent this product as USP, BP, EP, or for pharmaceutical, food, or nutraceutical use.
What are the safety and handling considerations?
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This compound carries a Warning signal word and has hazard statements H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Use with adequate ventilation, wear protective gloves, eye shields, and a dust mask type N95 (US).
How is this chemical shipped and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, equipped to handle international shipments in compliance with all necessary regulations.
How can I request a sample or quote?
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Please contact our sales team through the website or by phone to request a sample or a formal quotation for this product.
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