1,3-Dichloroisoquinoline
Also known as: Isoquinoline, 1,3-dichloro-, MFCD00034750
1,3-Dichloroisoquinoline (CAS 7742-73-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H5Cl2N and a molecular weight of 198.05 g/mol. Key properties include a melting point of 121-122 °C(lit.), a boiling point of 328.7±22.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 182.6±7.9 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 7742-73-6
- Jingsj CID
- J-49513-6
- Molecular Formula
- C9H5Cl2N
- Molecular Weight
- 198.05 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 121-122 °C(lit.) |
|---|---|
| Boiling Point | 328.7±22.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 182.6±7.9 °C |
| Exact Mass | 196.979904 |
| PSA | 12.89000 |
| LogP | 3.31 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.661 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2933499090 |
|---|---|
| Summary | 2933499090. other compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 1,3-Dichloroisoquinoline?
The CAS number of 1,3-Dichloroisoquinoline is 7742-73-6.
What are the molecular formula and molecular weight of 1,3-Dichloroisoquinoline?
1,3-Dichloroisoquinoline has molecular formula C9H5Cl2N and molecular weight 198.05 g/mol.
Is 1,3-Dichloroisoquinoline hazardous?
1,3-Dichloroisoquinoline has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 1,3-Dichloroisoquinoline?
For 1,3-Dichloroisoquinoline, Upstream Products: Isoquinoline-1,3(2H,4H)-dione, 2-(Cyanomethyl)benzoic acid, Phenylphosphonic dichloride; Downstream Products: Isoquinoline, 1,2,3,4-Tetrahydroisoquinoline, tert-butyl 4-(isoquinolin-1-yl)piperazine-1-carboxylate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,3-Dichloroisoquinoline (CAS 7742-73-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49513-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.