1,4-Dimethylnaphthalene

Name: 1,4-Dimethylnaphthalene
Brand: Vaqora Chemicals
SKU: VQ-041005

About 1,4-Dimethylnaphthalene

1,4-Dimethylnaphthalene is an API impurity reference standard carrying the CAS registry number 571-58-4. The compound has the formula C12H12, corresponding to a molecular weight of 156.22 g/mol. Common synonyms include Naphthalene, 1,4-dimethyl- and 1,4-Dimethylnapthalene.

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. It carries the GHS signal word “Danger” with 5 hazard statements. Review the Safety Data Sheet before use.

As a characterised impurity of the parent drug substance, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies 1,4-Dimethylnaphthalene in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

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

Industries

Specifications & identifiers

Chemical identifiers
Product name	1,4-Dimethylnaphthalene
Catalogue No.	VQ-041005
CAS Number	571-58-4
IUPAC name	1,4-dimethylnaphthalene
Molecular formula	C₁₂H₁₂
Molecular weight	156.22 g/mol
Exact mass	156.0939
Grade	Reference Standard
HSN code	38229090
InChIKey	APQSQLNWAIULLK-UHFFFAOYSA-N
SMILES	CC1=CC=C(C2=CC=CC=C12)C
PubChem CID	11304

Physical properties
Physical form	Solid
LogP (XLogP3)	4.4
H-bond donors / acceptors	0 / 0
TPSA	0 Å²

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Environmental hazard

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H304May be fatal if swallowed and enters airways
H319Causes serious eye irritation
H400Very toxic to aquatic life
H412Harmful to aquatic life with long lasting effects

Precautionary statements: P264, P264 + P265, P270, P273, P280, P301 + P316, P301 + P317, P305 + P351 + P338, P330, P331, P337 + P317, P391, 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 1,4-Dimethylnaphthalene?

The CAS Registry Number of 1,4-Dimethylnaphthalene is 571-58-4. It is also known as Naphthalene, 1,4-dimethyl-, 1,4-Dimethylnapthalene, 1,4-DMN.

What is the molecular formula and molecular weight of 1,4-Dimethylnaphthalene?

1,4-Dimethylnaphthalene has the molecular formula C12H12 and a molecular weight of 156.22 g/mol. Its IUPAC name is 1,4-dimethylnaphthalene.

Which grade and pack sizes of 1,4-Dimethylnaphthalene can I order?

We supply 1,4-Dimethylnaphthalene 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 1,4-Dimethylnaphthalene?

Yes. Every lot of 1,4-Dimethylnaphthalene 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 1,4-Dimethylnaphthalene be shipped internationally?

Yes. 1,4-Dimethylnaphthalene 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.