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2-(Chloromethyl)tetrahydropyran

Also known as: 2-(Chloromethyl)tetrahydro-2H-pyran, 2-(Chloromethyl)oxane, 2-Tetrahydropyranylmethyl chloride, Tetrahydro-2H-pyran-2-ylmethyl chloride, (Tetrahydro-2H-pyran-2-yl)methyl chloride, TETRAHYDROPYRAN-2-METHYL CHLORIDE, TETRAHYDROPYRAN-2-METHYLENE-CHLORIDE

2-(Chloromethyl)tetrahydropyran (CAS 18420-41-2) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C6H11ClO and a molecular weight of 134.60400 g/mol. Key properties include a boiling point of 53-54 °C12 mm Hg(lit.), a density of 1.075 g/mL at 25 °C(lit.) and a flash point of 55.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
18420-41-2
Jingsj CID
J-34607-6
Molecular Formula
C6H11ClO
Molecular Weight
134.60400 g/mol
Category
Organohalogen Compounds
Last updated
11/2/2026
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Physicochemical Properties

Boiling Point53-54 °C12 mm Hg(lit.)
Density1.075 g/mL at 25 °C(lit.)
Flash Point55.0 °C
Exact Mass134.05000
PSA9.23000
LogP1.79430
Vapor Pressure2.35mmHg at 25°C
Refractive Indexn20/D 1.462(lit.)

GHS Safety & Compliance

Flammable / IrritantSignal word: Warning
  • H226 — Flammable liquid and vapour
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2932999099
Summary2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. 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 2-(Chloromethyl)tetrahydropyran?

The CAS number of 2-(Chloromethyl)tetrahydropyran is 18420-41-2.

What are the molecular formula and molecular weight of 2-(Chloromethyl)tetrahydropyran?

2-(Chloromethyl)tetrahydropyran has molecular formula C6H11ClO and molecular weight 134.60400 g/mol.

Is 2-(Chloromethyl)tetrahydropyran hazardous?

2-(Chloromethyl)tetrahydropyran has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

What are the upstream and downstream products of 2-(Chloromethyl)tetrahydropyran?

For 2-(Chloromethyl)tetrahydropyran, Upstream Products: Tetrahydro-2H-pyran-2-methanol, 5-Hexen-1-ol, 3,4-Dihydro-2H-pyran-2-carbaldehyde; Downstream Products: 5-Hexyn-1-ol, Methyl 5-hexynoate, 5-Hexen-1-ol.

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

Last updated:

How to cite: Jingsj. "2-(Chloromethyl)tetrahydropyran (CAS 18420-41-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34607-6 (accessed 2026-11-09).

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