Is n-Butanol the same as isobutanol, sec-butanol or tert-butanol?

No. n-Butanol is butan-1-ol with CAS 71-36-3. Isobutanol, 2-butanol and tert-butanol are different structural isomers, so an industrial order must use the exact name and CAS rather than “butanol” alone.

Which quality controls matter for an industrial n-Butanol solvent grade?

The main controls are assay, water, acidity, color and, where relevant, nonvolatile residue. GC can measure n-butanol and relevant volatile organic impurities; water is checked separately, commonly by Karl Fischer titration. Our COA states whether assay is a GC area percentage, a calibrated mass fraction or a mass fraction calculated by difference. These reporting bases should not be compared as if equivalent. For acidity, our quality documentation states the method and units, such as mass % as acetic acid or acid number in mg KOH/g. Tell us any critical limits for other alcohol isomers or carbonyl impurities for the quotation.

Can n-Butanol be substituted directly by another butanol isomer in ester production?

Not automatically. The alcohol structure affects the ester identity and can change reaction, separation and final-product properties. For butyl esters, define the intended alcohol isomer and verify the reaction specification instead of assuming an equal-weight solvent substitution.

n-Butanol (1-Butanol) CAS 71-36-3

n-Butanol (1-Butanol) (CAS 71-36-3, EC 200-751-6) is supplied for industrial solvent use and chemical synthesis, including the production of n-Butyl Acetate. This straight-chain primary C4 alcohol is distinct from 2-butanol, isobutanol and tert-butanol. Send your application, quantity and destination for a quotation, together with any critical specification limits.

CAS: 71-36-3
Synonyms: 1-Butanol; Butan-1-ol; n-Butanol; n-Butyl Alcohol; Normal Butyl Alcohol
Einecs: 200-751-6
Molecular Formula: C₄H₁₀O
Grade: Industrial solvent specifications cover assay, water, acidity, color and, where relevant, nonvolatile residue; the agreed limits and test methods are stated in our supply documentation.
Package: We specify packaging, net quantity and transport requirements in our quotation for the requested quantity and destination.

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Product Description

1 Product Overview

2 Product Information / Specifications

3 Storage, Safety and Documentation

Product Overview

n-Butanol is used in coating and ink solvent blends and as a feedstock for butyl esters. For grade selection, assay and the impurity profile help assess composition, while water, acidity, color and nonvolatile residue are relevant to formulation or reaction requirements. Our quotation identifies the offered specification and packaging.

For solvent use, consider resin compatibility, evaporation behaviour and the complete solvent blend. n-Butanol has limited miscibility with water, so water tolerance should be evaluated in the intended system rather than assumed from its alcohol identity.

Product Information / Specifications

Product	n-Butanol (1-Butanol) CAS 71-36-3
CAS No.	71-36-3
EC No.	200-751-6
Molecular Formula / Identity	C₄H₁₀O
Synonyms	1-Butanol; Butan-1-ol; n-Butyl alcohol; Normal butyl alcohol
Grade / Supply Specification	Industrial solvent specifications cover assay, water, acidity, color and, where relevant, nonvolatile residue; the agreed limits and test methods are stated in our supply documentation.
Packaging	We specify packaging, net quantity and transport requirements in our quotation for the requested quantity and destination.

n-Butanol is a feedstock for n-Butyl Acetate. In coating solvent blends, Isobutanol is a branched C4 alcohol, while Sec-Butyl Acetate is a different acetate ester. Butyl Glycol Acetate (BGA) is a slower-evaporating ether-ester solvent used to support flow and leveling. Selection depends on resin compatibility and the required drying profile; the intended alcohol isomer must remain specified in ester manufacture.

Storage, Safety and Documentation

We can provide COA (Certificate of Analysis), TDS (Technical Data Sheet), SDS (Safety Data Sheet) and applicable GC quality data for n-Butanol. It is a flammable liquid and vapor and can cause serious eye damage. Follow the storage, ventilation, ignition-control and protective-equipment requirements in the SDS we provide and your site assessment.

FAQ - Technical & Supply Chain

Q:
Is n-Butanol the same as isobutanol, sec-butanol or tert-butanol?

A: No. n-Butanol is butan-1-ol with CAS 71-36-3. Isobutanol, 2-butanol and tert-butanol are different structural isomers, so an industrial order must use the exact name and CAS rather than “butanol” alone.
Q:
Which quality controls matter for an industrial n-Butanol solvent grade?

A: The main controls are assay, water, acidity, color and, where relevant, nonvolatile residue. GC can measure n-butanol and relevant volatile organic impurities; water is checked separately, commonly by Karl Fischer titration. Our COA states whether assay is a GC area percentage, a calibrated mass fraction or a mass fraction calculated by difference. These reporting bases should not be compared as if equivalent. For acidity, our quality documentation states the method and units, such as mass % as acetic acid or acid number in mg KOH/g. Tell us any critical limits for other alcohol isomers or carbonyl impurities for the quotation.
Q:
Can n-Butanol be substituted directly by another butanol isomer in ester production?

A: Not automatically. The alcohol structure affects the ester identity and can change reaction, separation and final-product properties. For butyl esters, define the intended alcohol isomer and verify the reaction specification instead of assuming an equal-weight solvent substitution.

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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