Does the BPE-1500 designation define a fixed EO/PO sequence or exact molecular weight?

No. Butanol EO/PO random polyethers are distributions; “1500” is a nominal average molecular-weight grade, and random architecture is not a fixed sequence. Confirm hydroxyl value, average molecular-weight range, EO/PO balance, water, viscosity at stated temperature, and cloud-point method where relevant.

Butanol EO/PO Random Polyether BPE-1500 CAS 9038-95-3

BPE-1500 (CAS 9038-95-3) is a butanol-initiated EO/PO random polyether with a nominal average molar mass of about 1500 g/mol. Also known as poly(ethylene glycol-ran-propylene glycol) monobutyl ether or polyalkylene glycol monobutyl ether, it is used in low-foam detergents, textile auxiliaries and lubricant formulations. We can provide a Certificate of Analysis (COA), Technical Data Sheet (TDS) and Safety Data Sheet (SDS), and help match hydroxyl value, viscosity, water content, acid value, color and EO/PO composition to your formulation requirements.

CAS: 9038-95-3
Synonyms: Butanol EO/PO Random Polyether, BPE-1500, Poly(ethylene glycol-ran-propylene glycol) Monobutyl Ether, Polyalkylene Glycol Monobutyl Ether, Oxirane 2-methyl Polymer with Oxirane Monobutyl Ether
Molecular Formula: C₄H₉O-(C₂H₄O)ₓ-(C₃H₆O)ᵧ-H (variable EO/PO distribution)
Grade: Specified by average molar mass, EO/PO ratio or distribution, hydroxyl value, water, viscosity, acid value, color and cloud point or solubility; see the current TDS and COA.
Package: Drums or bulk; confirm container, liner, net weight and handling for your order and destination.
ECHA List number (technical reference): 618-542-7

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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	Butanol-started EO/PO random polyether monobutyl ether; BPE-1500
CAS number	9038-95-3
Structure	C₄H₉O-(C₂H₄O)ₓ-(C₃H₆O)ᵧ-H; EO/PO ratio and sequence are grade-specific
Average mass	BPE-1500 normally denotes an average-mass grade near 1500, subject to supplier specification
Hydroxyl-value check	For a monofunctional grade near 1500 g/mol, the theoretical hydroxyl value is about 37 mg KOH/g, not 1500 mg KOH/g
Key quality controls	Hydroxyl value, viscosity, water, acid value, color, cloud point or solubility and EO/PO composition

Applications and grade selection

BPE-1500 may be evaluated as a low-foam wetting, lubricating, coupling or polyether component in industrial cleaning, textile, metalworking and other formulated systems.

Use hydroxyl value and supplier composition data to confirm that the offered material corresponds to the intended average-mass grade.
Test foam profile, wetting, clouding, solubility, lubrication and temperature behavior in the buyer’s actual system.
Do not treat all products under CAS 9038-95-3 as interchangeable; the CAS covers a broad polyether family.

Storage and handling

Keep the container sealed and dry within the temperature range stated by the supplier. Polyethers can take up moisture; follow the exact TDS for heating, homogenization and sampling before quality testing.

Safety, documentation and procurement

Use the current SDS for ventilation, PPE, spill response and disposal. A quotation should state average mass, hydroxyl value, EO/PO requirement, application, quantity, package and destination.

For EO/PO polyether comparisons with different initiators and block structures, review GPE 3000 and PE 6800-Type EO/PO/EO Block Copolymer.

FAQ - Technical & Supply Chain

Q:
Does the BPE-1500 designation define a fixed EO/PO sequence or exact molecular weight?

A: No. Butanol EO/PO random polyethers are distributions; “1500” is a nominal average molecular-weight grade, and random architecture is not a fixed sequence. Confirm hydroxyl value, average molecular-weight range, EO/PO balance, water, viscosity at stated temperature, and cloud-point method where relevant.

Ordering & Documentation

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

Documents

Tell us which documents your procurement team needs. Before an order, we will check whether the quoted source can provide them for the offered lot.

Quotation

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

Sample & Supply

Ask whether samples, trial quantities or repeat orders are possible. We will check each request against the sourced product and current offer.

Storage & Shipping

Product-specific conditions are confirmed before order.

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