1,3-Dichloroisoquinoline
1,3-Dichloroisoquinoline (CAS: 7742-73-6) is a halogenated heterocyclic compound with the molecular formula C9H5Cl2N and a molecular weight of 198.05 g/mol. This chemical serves as a valuable building block in organic synthesis, particularly within the realm of heterocyclic chemistry. It is frequently employed in research and development settings for the creation of more complex molecules and as an intermediate in chemical research.
- Synonyms
- C9H5Cl2N

Organic Synthesis Intermediate
1,3-Dichloroisoquinoline is utilised as a key intermediate in the synthesis of diverse organic compounds. Its reactive chlorine atoms allow for various functionalisation reactions, enabling the construction of complex molecular architectures.
Heterocyclic Chemistry Research
This compound is a useful reagent in academic and industrial research focused on isoquinoline derivatives. It aids in the exploration of novel compounds with potential applications in medicinal chemistry and material science.
Building Block for Novel Molecules
As a functionalised heterocycle, 1,3-Dichloroisoquinoline provides a scaffold for developing new chemical entities. Its structure is amenable to modifications that can lead to compounds with tailored properties.
| Molecular weight | 198.05 |
|---|---|
| Empirical formula | C9H5Cl2N |
| Assay | 97% |
| Melting point | 121-122 °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-Dichloroisoquinoline used for?
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1,3-Dichloroisoquinoline is primarily used as a building block and intermediate in organic synthesis, particularly in heterocyclic chemistry research for creating more complex molecules.
What is the CAS number and formula for 1,3-Dichloroisoquinoline?
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The CAS number is 7742-73-6 and the empirical formula (Hill notation) is C9H5Cl2N.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,3-Dichloroisoquinoline with an assay of 97%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 1,3-Dichloroisoquinoline be handled?
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Handle with appropriate personal protective equipment, including a dust mask (type N95 or equivalent), eyeshields, and gloves. Ensure adequate ventilation and avoid breathing dust. In case of eye contact, rinse cautiously with water for several minutes, removing contact lenses if present and easy to do.
Is 1,3-Dichloroisoquinoline a controlled substance?
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The provided data does not indicate that 1,3-Dichloroisoquinoline is a controlled substance.
How is 1,3-Dichloroisoquinoline packed and shipped?
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Products are typically packed in accordance with relevant transport regulations to ensure safe transit. We are a global supplier and exporter experienced in shipping fine chemicals worldwide.
How can I request a quote or sample?
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To request a quote or a sample of 1,3-Dichloroisoquinoline, please contact our sales team through the website or by phone, providing your specific requirements.
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