1,5-Pentanediol, CAS 111-29-5, for polyester and polyurethane resin production and polycarbonate-diol synthesis. Before requesting a quotation, confirm assay, water content, colour, hydroxyl value or other grade-relevant limits, physical form, packaging and target resin process, and request current TDS, COA and SDS.
1,5-Pentanediol (1,5-PDO) CAS 111-29-5
- CAS: 111-29-5
- Synonyms: 1,5-Pentanediol; Pentane-1,5-diol; Pentamethylene glycol; 1,5-Dihydroxypentane; 1,5-PDO
- Einecs: 203-854-4
- Molecular Formula: C₅H₁₂O₂
- Grade: Confirm on the offered specification and lot COA: assay, water content, colour, hydroxyl value or other grade-relevant limits, physical form, packaging and target resin process.
- Package: Compatible sealed packaging; confirm configuration for quantity, transport mode, destination and grade requirements
Product Description
Product name: 1,5-Pentanediol (1,5-PDO)
1,5-Pentanediol (1,5-PDO), CAS 111-29-5, is a linear aliphatic diol used as an intermediate in polyester and polyurethane resin production and in polycarbonate-diol synthesis. It is distinct from 1,3-propanediol; use the explicit abbreviation 1,5-PDO rather than bare PDO.
Identity data: formula C₅H₁₂O₂, molar mass 104.15 g/mol, CAS 111-29-5 and EC 203-854-4. Confirm physical form, colour, water content and grade-specific limits on the offered specification.
Molar mass: 104.15 g/mol
CAS Number: 111-29-5
EC number: 203-854-4
Boiling point: about 239 °C; confirm pressure, method and the offered grade in the current TDS.
Density: the current page reports 0.982 g/cm³ without a test temperature; confirm the value and conditions in the offered TDS.
Flash point: the current page reports 129.44 °C without a test method; use the current SDS for classification and handling.
Refractive index: the current page reports 1.4499 without temperature or wavelength; confirm the test conditions in the current TDS.
Solubility: miscible with water, methanol and ethanol; confirm the test basis for the offered grade when this property is process-critical.
Industrial use: diol intermediate for polyester and polyurethane resin production and polycarbonate-diol synthesis. Suitability for cutting fluids, detergents, inks, brake fluids or other formulations requires separate grade and process confirmation.
FAQ - Technical & Supply Chain
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Q:
Are 1,5-Pentanediol and 1,5-PDO the same diol?
A: Yes. 1,5-Pentanediol, pentane-1,5-diol and 1,5-PDO identify CAS 111-29-5. They are not 1,4-pentanediol, 1,6-hexanediol or a glycol mixture. State the chain position, CAS number, assay basis and intended polymer or coating grade. -
Q:
Which specifications matter when purchasing industrial 1,5-Pentanediol?
A: Agree assay by GC, water, acidity, color, density, hydroxyl value, residue and limits for other diols or carbonyl impurities. Polyurethane and polyester users may require different hydroxyl and moisture limits. Confirm whether the quoted result is as-received or dry basis and review the batch COA. -
Q:
What should be confirmed before bulk 1,5-Pentanediol delivery?
A: Confirm drum, IBC or tanker format, container compatibility, quantity, previous cargo and unloading connection. State the required water and hydroxyl-value basis, packaging, storage temperature and current SDS. Do not compare a dry-basis assay with an as-received result when approving the shipment.
Ordering & Documentation
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Documents
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Storage & Shipping
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