1-Octadecanal

Name: 1-Octadecanal
Brand: Vaqora Chemicals
SKU: VQ-043560

About 1-Octadecanal

Listed under CAS 638-66-4, 1-Octadecanal is an impurity of Acetone available from Vaqora Chemicals. Its molecular formula is C18H36O and its molecular weight is 268.5 g/mol. The IUPAC name is octadecanal. It is also known as Octadecanaldehyde or Stearyl aldehyde.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

As a characterised impurity of Acetone, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. It is used across pharmaceutical manufacturing and academic and industrial research.

We offer 1-Octadecanal in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Acetone

View every impurity, metabolite and intermediate we list for Acetone.

Acetone impurities

Specifications & identifiers

Chemical identifiers
Product name	1-Octadecanal
Catalogue No.	VQ-043560
CAS Number	638-66-4
IUPAC name	octadecanal
Molecular formula	C₁₈H₃₆O
Molecular weight	268.5 g/mol
Exact mass	268.2766
Grade	Reference Standard
HSN code	38229090
InChIKey	FWWQKRXKHIRPJY-UHFFFAOYSA-N
SMILES	CCCCCCCCCCCCCCCCCC=O
PubChem CID	12533

Physical properties
Physical form	Solid
LogP (XLogP3)	8.1
H-bond donors / acceptors	0 / 1
TPSA	17.1 Å²
Synonyms	Octadecanaldehyde, Stearyl aldehyde, Octadecanal (9CI), Octadecyl aldehyde, n-Octadecanal, FAL 18:0

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 1-Octadecanal?

The CAS Registry Number of 1-Octadecanal is 638-66-4. It is also known as Octadecanaldehyde, Stearyl aldehyde, Octadecanal (9CI).

What is the molecular formula and molecular weight of 1-Octadecanal?

1-Octadecanal has the molecular formula C18H36O and a molecular weight of 268.5 g/mol. Its IUPAC name is octadecanal.

What is 1-Octadecanal used for?

1-Octadecanal is supplied as a characterised reference material related to Acetone. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of 1-Octadecanal can I order?

We supply 1-Octadecanal in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 1-Octadecanal?

Yes. Every lot of 1-Octadecanal is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 1-Octadecanal be shipped internationally?

Yes. 1-Octadecanal is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.