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1,3,5-Trichlorobenzene

Also known as: sym-Trichlorobenzene, s-Trichlorobenzene, 1,3,5-TCB, Benzene, 1,3,5-trichloro-, 3,5-dichlorophenyl chloride

1,3,5-Trichlorobenzene (CAS 108-70-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H3Cl3 and a molecular weight of 181.447 g/mol. Key properties include a melting point of 63 °C, a boiling point of 211.3±20.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 126.7±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
108-70-3
Jingsj CID
J-1102320-9
Molecular Formula
C6H3Cl3
Molecular Weight
181.447 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point63 °C
Boiling Point211.3±20.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point126.7±0.0 °C
Exact Mass179.930038
LogP4.04
Vapor Pressure0.3±0.4 mmHg at 25°C
Refractive Index1.567

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H332 — Harmful if inhaled
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation
  • H412 — Harmful to aquatic life with long lasting effects

Customs & Trade Information

HS Code2903999090
Summary2903999090 halogenated derivatives of aromatic hydrocarbons VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 1,3,5-Trichlorobenzene?

The CAS number of 1,3,5-Trichlorobenzene is 108-70-3.

What are the molecular formula and molecular weight of 1,3,5-Trichlorobenzene?

1,3,5-Trichlorobenzene has molecular formula C6H3Cl3 and molecular weight 181.447 g/mol.

Is 1,3,5-Trichlorobenzene hazardous?

1,3,5-Trichlorobenzene has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H332 — Harmful if inhaled.

What are the upstream and downstream products of 1,3,5-Trichlorobenzene?

For 1,3,5-Trichlorobenzene, Upstream Products: 1,3-Dibromo-5-chlorobenzene, 1-Bromo-3,5-dichlorobenzene, 2,4,6-Trichloroaniline; Downstream Products: 3,5-Dichlorobiphenyl, 1,3-Dichlorobenzene, 2,2',4,4',6,6'-Hexachlorobiphenyl.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "1,3,5-Trichlorobenzene (CAS 108-70-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1102320-9 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.