1′,3′-Dihydro-5′-methoxy-1′,3′,3′-trimethyl-6-nitrospiro[2H-1-benzopyran-2,2′-(2H)-indole]
1′,3′-Dihydro-5′-methoxy-1′,3′,3′-trimethyl-6-nitrospiro[2H-1-benzopyran-2,2′-(2H)-indole] (CAS: 16331-96-7) is an organic compound with the molecular formula C20H20N2O4 and a molecular weight of 352.38 g/mol. This spiro compound, featuring nitro and methoxy substituents on a benzopyran-indole core, is primarily utilised as a photochromic dye. Its unique light-sensitive properties make it valuable in advanced materials science and optical applications.
- Synonyms
- 3′-trimethyl-6-nitrospiro[2H-1-benzopyran-2,2′-(2H)-indole]16331-96-7C20H20N2O4
![1′,3′-Dihydro-5′-methoxy-1′,3′,3′-trimethyl-6-nitrospiro[2H-1-benzopyran-2,2′-(2H)-indole] (C20H20N2O4) — chemical structure, CAS 16331-96-7; Materials Science, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F16331-96-7.png&w=3840&q=75)
Photochromic Dye
This compound exhibits photochromic behaviour, meaning it can reversibly change colour upon exposure to light. This property is essential for applications requiring light-responsive materials, such as in lenses or optical switches.
Materials Science Research
As a specialized organic molecule, it serves as a valuable component in materials science research. Its synthesis and properties contribute to the development of novel organic and printed electronics, and photonic materials.
Analytical Standards
The compound is catalogued under various analytical standard categories, suggesting its use in chromatographic and analytical methodologies where precise reference materials are required.
| Molecular weight | 352.38 |
|---|---|
| Empirical formula | C20H20N2O4 |
| Assay | 95% |
| Application | Photochromic dye |
| Melting point | 134-136 °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) | 26-36 |
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-5′-methoxy-1′,3′,3′-trimethyl-6-nitrospiro[2H-1-benzopyran-2,2′-(2H)-indole] used for?
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This compound is primarily used as a photochromic dye, finding applications in materials science, organic electronics, and as an analytical standard.
What are the CAS number and molecular formula for this compound?
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The CAS number is 16331-96-7 and the molecular formula is C20H20N2O4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this compound with a minimum purity of 95%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
What are the main hazards associated with this chemical?
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This compound is classified with GHS07 (Warning) and is associated with hazard statements H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Appropriate personal protective equipment, including a dust mask type N95, eyeshields, and gloves, should be used.
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions packs, ships, and exports chemicals adhering to all relevant international regulations for safe transport of chemical goods.
How can I request a sample or obtain a quotation?
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To request a sample or obtain a quotation for 1′,3′-Dihydro-5′-methoxy-1′,3′,3′-trimethyl-6-nitrospiro[2H-1-benzopyran-2,2′-(2H)-indole], please contact our sales department through the website or by phone.
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