Are Heptanal and Heptaldehyde the same substance?

Yes. Heptanal, heptaldehyde and enanthaldehyde refer to the straight-chain aldehyde CAS 111-71-7, formula C₇H₁₄O. Branched C7 aldehydes are different substances.

Why is acidity important when buying Heptanal?

Heptanal can oxidize to heptanoic acid during storage. Acidity is therefore specified alongside GC assay and water; it does not by itself establish the entire impurity profile. Free acid reported as heptanoic acid (%) and acid value (mg KOH/g) use different reporting bases, so the methods and units matter when comparing results.

Which details are needed for a bulk Heptanal quotation?

Send the quantity, application or required specification, and destination for a quotation. Assay, acidity, water, stabilizer status and packaging can then be agreed for the order.

Heptanal (Heptaldehyde) CAS 111-71-7

Heptanal (Heptaldehyde), CAS 111-71-7, is a straight-chain C7 aldehyde used in fragrance-ingredient and organic synthesis. Also known as enanthaldehyde, it is supplied to agreed requirements for GC assay, water and acidity.

CAS: 111-71-7
Synonyms: Heptanal; Heptaldehyde; n-Heptanal; n-Heptaldehyde; Enanthaldehyde; Oenanthaldehyde; Heptyl aldehyde
Einecs: 203-898-4
Molecular Formula: C₇H₁₄O
Grade: Synthesis grade; assay, water and acidity limits agreed for the application
Package: Sealed packaging; pack size and transport conditions stated with the quotation.

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Product Description

1 Heptanal Specifications

2 Applications and Grade Selection

3 Quality Data and Product Documents

4 Storage and Packaging

Heptanal Specifications

Item	Heptanal specification information
Product Name	Heptanal (Heptaldehyde)
CAS Number	111-71-7
Molecular Formula	C₇H₁₄O
Molecular Weight	114.19 g/mol
Material Type	Straight-chain C7 aldehyde synthesis intermediate
Grade / Key Specifications	GC assay with reporting basis, water, acidity and appearance; limits and stabilizer status specified for the quoted grade
Available Form	Typically a clear, colorless to pale-yellow liquid; appearance specified for the quoted grade
Documents	COA, TDS and SDS for the quoted grade

Applications and Grade Selection

Heptanal is a building block for fragrance ingredients, including acetals and alpha-amylcinnamaldehyde. Its straight-chain aldehyde structure determines its reaction chemistry. The quotation defines the assay, water and acidity limits needed for the synthesis route.

Reduction of Heptanal produces 1-Heptanol. In selected jasminaldehyde routes, Potassium Carbonate serves as a base with phase-transfer catalysis; Dichloromethane (DCM) is used for catalyst washing in a disclosed acetal-based process. These process materials are route-dependent. For separate fragrance-ingredient selection, 2-Methyldecanal is a different branched aldehyde with a distinct odour profile, not a direct substitute for Heptanal.

Quality Data and Product Documents

COA (Certificate of Analysis), TDS (Technical Data Sheet) and SDS (Safety Data Sheet) can be provided for the quoted Heptanal grade. GC chromatograms and method information can also be provided for agreed assay and impurity requirements. GC area percentage is not automatically a calibrated mass-fraction assay. Water and acidity are separate quality parameters, and water testing requires conditions suitable for an aldehyde matrix.

Storage and Packaging

Keep containers tightly closed, protected from heat, ignition sources and light, and minimise air exposure. Inert-gas requirements, shelf life, packaging and transport conditions are specified for the quoted grade and stated in the relevant product documentation.

FAQ - Technical & Supply Chain

Q:
Are Heptanal and Heptaldehyde the same substance?

A: Yes. Heptanal, heptaldehyde and enanthaldehyde refer to the straight-chain aldehyde CAS 111-71-7, formula C₇H₁₄O. Branched C7 aldehydes are different substances.
Q:
Why is acidity important when buying Heptanal?

A: Heptanal can oxidize to heptanoic acid during storage. Acidity is therefore specified alongside GC assay and water; it does not by itself establish the entire impurity profile. Free acid reported as heptanoic acid (%) and acid value (mg KOH/g) use different reporting bases, so the methods and units matter when comparing results.
Q:
Which details are needed for a bulk Heptanal quotation?

A: Send the quantity, application or required specification, and destination for a quotation. Assay, acidity, water, stabilizer status and packaging can then be agreed for the order.

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

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Sample & Supply

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Storage & Shipping

Product-specific conditions are confirmed before order.

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