5-Chloro-1,10-phenanthroline
5-Chloro-1,10-phenanthroline (CAS: 4199-89-7) is a halogenated heterocyclic organic compound with the molecular formula C12H7ClN2 and a molecular weight of 214.65 g/mol. It functions as a valuable building block in chemical synthesis, particularly for creating nitrogen-containing heterocyclic structures. Its utility extends to the preparation of specialised materials, including ionic liquid crystals and platinum(II)-based metallointercalators, highlighting its role in advanced chemical research and material science.
- Synonyms
- C12H7ClN2

Synthesis of Ionic Liquid Crystals
5-Chloro-1,10-phenanthroline serves as a precursor for the synthesis of 1,10-phenanthrolinium cations, which are key components in the design of novel ionic liquid crystals.
Development of Metallointercalators
This compound is utilised in the preparation of platinum(II)-based metallointercalators, contributing to research in coordination chemistry and potential therapeutic agents.
Heterocyclic Chemistry Building Block
As a halogenated heterocycle, 5-Chloro-1,10-phenanthroline is a versatile building block for constructing complex organic molecules with nitrogen-containing frameworks.
| Molecular weight | 214.65 |
|---|---|
| Empirical formula | C12H7ClN2 |
| Assay | 98% |
| Application | 5-Chloro-1,10-phenanthroline was used in preparation of:• 1,10-phenanthrolinium cation, new building block for the design of ionic liquid crystals1• platinum(II)-based metallointercalators2 |
| Melting point | 124-126 °C(lit.) |


Hazard statements
- H302Harmful if swallowed
- H318Causes serious eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-41 |
| Safety statements (S) | 26-39 |
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 5-Chloro-1,10-phenanthroline used for?
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5-Chloro-1,10-phenanthroline is primarily used as a building block in chemical synthesis for creating advanced materials, such as ionic liquid crystals and platinum(II)-based metallointercalators.
What is the CAS number and formula for 5-Chloro-1,10-phenanthroline?
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The CAS number for 5-Chloro-1,10-phenanthroline is 4199-89-7, and its molecular formula is C12H7ClN2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Chloro-1,10-phenanthroline with an assay of 98%. We do not represent this product as USP, BP, or EP grade.
How should 5-Chloro-1,10-phenanthroline be handled safely?
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5-Chloro-1,10-phenanthroline is classified as dangerous. It is harmful if swallowed (H302) and causes serious eye damage (H318). Always wear eyeshields and gloves, and use a P1 (EN143) or N95 (US) respirator filter when handling. Ensure good ventilation and avoid dust formation.
Does TSS export 5-Chloro-1,10-phenanthroline?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 5-Chloro-1,10-phenanthroline.
How can I request a quote or sample?
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To request a quote or sample of 5-Chloro-1,10-phenanthroline, please contact our sales team through the website or by phone.
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