Solvents - Oxygenated Available — Bulk Only

Dichloroethyl Ether (Bis(2-chloroethyl) Ether)

CAS 111-91-1 · Formula C5H10Cl2O2 · MW 173.03 g/mol

A chlorinated ether solvent and reactive intermediate for polysulfide polymer chemistry. It is used as a solvent and as a chemical intermediate in the manufacture of polysulfide rubber and polymers.

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UN Number
UN 1916
Hazard Class
Class 6.1
HS Code
2909.19
At a Glance
Material Family
Solvents - Oxygenated
Record Type
Pure compound
Primary Role
Biocidal Action · Preservation
Functional Roles
Biocidal Action Preservation Solvency Synthesis Intermediate
Industries Served
HI&I Cleaning Oil & Gas Water Treatment
Applications & Use Cases
  • ▸ Polymer manufacture: Intermediate for polysulfide rubbers and polymers
  • ▸ Solvent: Industrial process solvent
  • ▸ Chemical synthesis: Building block for specialty polymers
Physical Properties
Melting Point
Freezing point= -32.8 °C
Boiling Point
218 °C at 760 mmHg
Density
1.2339 @ 20 °C/20 °C
Solubility
Miscible with most organic solvents
Vapor Pressure
0.13
Flash Point
110 °C
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

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DOT / UN Transport Classification
DOT hazard class 6.1 placard
UN / DOT NumberUN 1916
Hazard Class / DivisionClass 6.1
Packing GroupII
Proper Shipping Name2,2'-Dichlorodiethyl ether

Transport classification per the UN Model Regulations / 49 CFR 172.101 Hazardous Materials Table. Confirm against the grade-specific SDS (Section 14) before shipping.

HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
2909 . 19
Chapter 29
Organic chemicals
Heading 29.09
Internationally harmonized (WCO HS)
Subheading 2909.19
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
111-91-1
Molecular Formula
C5H10Cl2O2
Molecular Weight
173.03 g/mol
IUPAC Name
1-chloro-2-(2-chloroethoxymethoxy)ethane
PubChem CID
8147
InChI Key
NLXGURFLBLRZRO-UHFFFAOYSA-N
Synonyms & Trade Names
BIS(2-CHLOROETHOXY)METHANE Dichloroethylformal Dichloroethyl formal 2,2-Dichloroethylformal Bis(2-chloroethyl) formal Di-2-chloroethyl formal Methane, bis(2-chloroethoxy)- Di(2-chloroethyl)formal Bis(2-chloroethyl)formal Dichlorodiethyl formal Dichlorodiethyl methylal Formaldehyde bis(2-chloroethyl) acetal Bis(2-chloroethoxy)-methane 2,2-Dichloroethyl formal Bis(beta-chloroethyl)formal Bis(beta-chloroethyl) formal Ethane, 1,1'-(methylenebis(oxy))bis(2-chloro- Formaldehyde bis(beta-chloroethyl) acetal
Full Description

Dichloroethyl ether (CAS 111-91-1) is bis(2-chloroethyl) ether, a chlorinated acyclic ether. It is used as a solvent and as a chemical intermediate in the manufacture of polysulfide rubber and polymers.

Frequently Asked Questions

What is dichloroethyl ether?

Dichloroethyl ether (CAS 111-91-1, formula C5H10Cl2O2) is bis(2-chloroethyl) ether, a chlorinated acyclic ether. It is used as an industrial solvent and as a chemical intermediate in the manufacture of polysulfide rubber and polymers.

What is dichloroethyl ether used for?

It serves as an intermediate in producing polysulfide rubbers and specialty polymers, as an industrial process solvent, and as a building block in chemical synthesis.

Is dichloroethyl ether the same as diethyl ether?

No. Diethyl ether (Et2O) is the simple solvent C4H10O; dichloroethyl ether is bis(2-chloroethyl) ether, C5H10Cl2O2, a chlorinated compound with very different properties and uses. They are not interchangeable; specify by CAS 111-91-1.

How is dichloroethyl ether shipped and classified for transport?

It carries HS code 2909.19 (acyclic ethers and their halogenated derivatives: other). Consult the product SDS for the full transport, GHS, and handling profile and required packaging before arranging freight.

What is the cost of bulk dichloroethyl ether?

Bulk pricing depends on volume, packaging, and destination. Submit your required quantity and ship-to details for a current quote; each shipment ships with a CoA and SDS.

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Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.

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