Are Dipropyl Ether and di-n-propyl ether the same substance?

Yes. For CAS 111-43-3, Dipropyl Ether, di-n-propyl ether and 1-propoxypropane refer to the symmetrical ether made from two n-propyl groups. It must not be confused with diisopropyl ether, which has a different structure and CAS number.

Which release tests are important for industrial Dipropyl Ether?

Typical purchase controls include GC assay, water, acidity, distillation range, density, color, nonvolatile residue and peroxide status. Set application-specific limits and compare the batch COA using the same methods, especially when the ether is used as a reaction or extraction solvent.

How should peroxide risk be addressed when buying Dipropyl Ether?

Ask for peroxide test status, production or retest date, inhibitor information if applicable, package size and storage history. Keep the container tightly closed away from heat and air ingress, establish an opening-date control and never concentrate aged ether before checking the current SDS and peroxide result.

Dipropyl Ether CAS 111-43-3

Dipropyl Ether , CAS 111-43-3 and EC 203-869-6 , is the symmetrical aliphatic ether also known as di-n-propyl ether or 1-propoxypropane. Its molecular formula is C6H14O and its molecular weight is 102.17 g/mol. Buyers should control identity, GC assay, water, acidity, nonvolatile residue and peroxide status. Because ethers can form peroxides during storage, package history, opening date and retest criteria matter as much as nominal purity.

CAS: 111-43-3
Synonyms: Dipropyl ether, Di-n-propyl ether, Propyl ether, 1-Propoxypropane, 4-Oxaheptane
Einecs: 203-869-6
Molecular Formula: C₆H₁₄O
Grade: Confirm identity, GC assay, water, acidity, distillation range, nonvolatile residue, color, peroxide limit and test date, and stabilizer status against the current COA and SDS.
Package: State quantity, destination and receiving method; confirm an approved grounded solvent container, compatible closure, fill and headspace, peroxide-control status, transport classification and transfer precautions against the current SDS.

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Product Description

1 Identity and physicochemical profile

2 Applications and grade selection

3 Storage and handling

4 Safety, documentation and procurement

Identity and physicochemical profile

Item	Technical guidance
Product identity	Dipropyl ether; di-n-propyl ether; 1-propoxypropane
CAS / EC	111-43-3 / 203-869-6
Formula / molecular weight	C₆H₁₄O / 102.17 g/mol
Transport identity	UN 2384 appears among recognized substance identifiers; current SDS and route rules govern shipment
Key purchase controls	Identity, GC assay, water, acidity, peroxide value, nonvolatile residue, color and package history

Applications and grade selection

Dipropyl Ether may be evaluated as a low-polarity process solvent, extraction medium or reaction solvent. Suitability depends on water tolerance, peroxide control, boiling range, recovery system, residue limits and compatibility with the actual reagents and equipment.

Set an agreed peroxide limit and define the analytical method, retest period and action level.
Confirm water, acidity, residue and GC impurity limits for the intended process.
Run solvent-recovery, selectivity and product-purity checks before approving routine supply.

Storage and handling

Store tightly closed in an approved grounded container away from ignition sources, heat, light and oxidizers. Use bonding and grounding during transfer, minimize air exposure and follow a documented peroxide inspection and retest program.

Safety, documentation and procurement

Handle as a highly flammable ether using closed transfer, suitable ventilation and ignition control under the current SDS. A purchase request should state specification, quantity, package, destination, transport mode and required documents.

FAQ - Technical & Supply Chain

Q:
Are Dipropyl Ether and di-n-propyl ether the same substance?

A: Yes. For CAS 111-43-3, Dipropyl Ether, di-n-propyl ether and 1-propoxypropane refer to the symmetrical ether made from two n-propyl groups. It must not be confused with diisopropyl ether, which has a different structure and CAS number.
Q:
Which release tests are important for industrial Dipropyl Ether?

A: Typical purchase controls include GC assay, water, acidity, distillation range, density, color, nonvolatile residue and peroxide status. Set application-specific limits and compare the batch COA using the same methods, especially when the ether is used as a reaction or extraction solvent.
Q:
How should peroxide risk be addressed when buying Dipropyl Ether?

A: Ask for peroxide test status, production or retest date, inhibitor information if applicable, package size and storage history. Keep the container tightly closed away from heat and air ingress, establish an opening-date control and never concentrate aged ether before checking the current SDS and peroxide result.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

COA, TDS, SDS/MSDS and packing details are available on request.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Support is available for samples, trial orders, bulk and repeat supply.

Storage & Shipping

Product-specific conditions are confirmed before order.

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