Bio-based · Fusel oil distillate · CAS 123-51-3

Isoamyl Alcohol
Bio-based · 3-⁠Methyl-⁠1-⁠butanol · CAS 123-51-3

Isopentyl Alcohol · Isopentanol · Isobutyl Carbinol

PENPET Green Chemicals supplies bio-based isoamyl alcohol from fusel oil of bio-ethanol fermentation – as a sustainable solvent and raw material supplier in Europe. Drop-in for flavour and fragrance esters, coatings, printing inks and pharmaceutical extraction.

Bio-based · Fusel oilREACH-compliantDrop-in replacement ISO 14040/14044 LCA
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Specification, TDS & SDS (PDF) ↓
In use: Pharma & Cosmetics
123-51-3CAS-Nr.
C₅H₁₂OMolecular Formula
131 °CBoiling Point
DE/ENTDS, SDS and CoA with every delivery
Product Description

Bio-based isoamyl alcohol (3-⁠methyl-⁠1-⁠butanol) is obtained by distillation from fusel oil – a by-product of bio-ethanol fermentation from renewable raw materials. It is chemically identical to petrochemically produced isoamyl alcohol and suitable as a direct drop-in replacement without reformulation.

Isoamyl alcohol is a colourless, clear liquid with a characteristic odour and good solvency for resins, oils and nitrocellulose. As a building block for isoamyl acetate and other esters it is a key raw material for the flavour and fragrance industry.

Production: from sugarcane to isoamyl alcohol
  1. Sugarcanerenewable feedstock
  2. Fermentationbio-ethanol production
  3. Fusel oilby-product of fermentation
  4. Distillationof the fusel oil
  5. Isoamyl alcoholbio-based, drop-in without reformulation

This chain – sugarcane and ethanol production, fusel oil recovery and transport, distillation – is covered by the life cycle assessment (cradle-to-gate).

Applications
Isoamyl acetate and other flavour & fragrance esters
Solvent for coatings, printing inks and nitrocellulose
Pharmaceutical extraction and synthesis
Intermediate for plasticiser and lubricant esters
Laboratory reagent – Kovacs reagent, DNA extraction, chromatography
Cosmetic, cleaning and household formulations
Life Cycle Assessment & Product Carbon Footprint (LCA)

A life cycle assessment according to ISO 14040/14044 is available for our bio-based isoamyl alcohol (cradle-to-gate, European Commission Environmental Footprint method EF 3.1). The study was prepared by ACV Brasil on the basis of primary data from the manufacturer (production period July 2023 to June 2024). The product carbon footprint covers sugarcane and ethanol production, fusel oil recovery and transport, and distillation to isoamyl alcohol.

On request
The figures from the study – climate change (GWP) cradle-to-gate, the variant including land use change (LUC) and the biogenic carbon content – are available on request, together with the full report.
Study data & methodology
Study data
StandardISO 14040 / ISO 14044
MethodEnvironmental Footprint 3.1 (EU)
System boundaryCradle-to-gate
Functional unit1 kg isoamyl alcohol
FeedstockFusel oil from sugarcane ethanol (Brazil)
Data basisPrimary data 07/2023–⁠06/2024, ecoinvent 3.10
Prepared byACV Brasil, version 1.1, March 2025
Contributions to climate change result
Fusel oil production chain (sugarcane, ethanol)71 %
Steam for distillation (natural gas boiler)20 %
Fusel oil transport8 %
Electricity, cooling water, auxiliaries1 %

Base scenario: fossil emissions without crediting biogenic carbon. The biogenic CO₂ content of 2.5 kg CO₂/kg is reported as additional information and may only be credited where the carbon remains permanently bound in the end product. Study version 1.1 (March 2025), internally reviewed; external critical review not yet completed – the results are not intended for comparative assertions against other products.

Request LCA report
Delivery & Packaging
Tank container · ISO tank, approx. 18,000–⁠20,000 kg
IBC · 800 kg
Drums · Steel drum, 170 kg
Delivery from Hamburg across Europe

Technical Data

CAS-Nr.123-51-3
EINECS-Nr.204-633-5
Molecular FormulaC₅H₁₂O
Mol. Weight88.15 g/mol
Physical StateColourless, clear, liquid
Purity (GC)≥ 98.5 %
Density (20 °C)0.81 g/cm³
Boiling Point131 °C
Flash Point43 °C
OriginBio-based (fusel oil, fermentation)

Individual quote for bio-based isoamyl alcohol – various pack sizes and quantities on request.

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Downloads

Specification, TDS & SDS for download

Specification, technical data sheet and safety data sheet for isoamyl alcohol as PDF in German and English.

99.0

Specification

Pentanols ≥ 99.0 % · manufacturer specification
Purity≥ 99.0 %
Water≤ 0.20 %
Density 20 °C0.810–⁠0.815
Specification 25.09.2026
TDS

Technical Data Sheet

Properties · applications · regulatory · sustainability · transport
Flash point43 °C
Boiling point131 °C
TransportUN 1105
TDS 02.10.2026
SDS

Safety Data Sheet

according to REACH Annex II / (EU) 2020/878
Version 1.2 · 02.10.2026

The certificate of analysis (CoA) is supplied with every delivery; LCA report and kosher certificate on request.

Your contacts
Christoph Meister
Christoph MeisterManaging Director · quotes, samples and delivery
Dr. Gibran Mujalli
Dr. Gibran MujalliQuality Management · specifications, TDS, SDS and CoA
Applications

Matching industry solutions

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FAQ

FAQ: Isoamyl alcohol

How is bio-based isoamyl alcohol obtained?

By distillation of fusel oil, a by-product of ethanol fermentation from sugar cane. The isoamyl alcohol is chemically identical to petrochemical material and replaces it without reformulation.

Is life cycle data available for my Scope 3 reporting?

Yes. A life cycle assessment according to ISO 14040/14044 (cradle-to-gate, EF 3.1) is available for our isoamyl alcohol. Key figures and the full report are available on request.

Which documents can I download?

The specification, technical data sheet and safety data sheet are available on this page as PDFs in German and English. The certificate of analysis comes with every delivery.

Why does an IBC hold only 800 kg?

Isoamyl alcohol has a density of around 0.81 g/cm³. A 1,000 l IBC therefore holds about 800 kg and a steel drum about 170 kg; an ISO tank carries approx. 18,000–⁠20,000 kg.

Isoamyl Alcohol (3-⁠Methyl-⁠1-⁠butanol) – European Supplier

PENPET Green Chemicals is your European supplier of bio-based isoamyl alcohol (isopentyl alcohol, 3-⁠methyl-⁠1-⁠butanol, CAS 123-51-3). We supply REACH-compliant material from fusel oil distillation for the flavour and fragrance industry, coatings and printing inks, and pharmaceutical extraction and synthesis – direct from Hamburg in IBCs, drums or tank containers.

Discover our other bio-based solvents: Ethyl Acetate · Bio-Acetic Acid · Isopropanol. All products are REACH compliant.

Interested in Isoamyl Alcohol?

Contact us for a tailored quote – fast, direct and straightforward.

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