Isoquinoline N-oxide

About Isoquinoline N-oxide

Isoquinoline N-oxide is a metabolite or degradation product of Isoquinoline carrying the CAS registry number 1532-72-5. Formula C9H7NO, molecular weight 145.16 g/mol. Its systematic (IUPAC) name is 2-oxidoisoquinolin-2-ium. Alternative names: Isoquinoline, 2-oxide and Isoquinolin-N-oxide.

The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Analytical teams use this compound to identify metabolites and degradants of Isoquinoline, to validate stability-indicating methods (AMV) and to support QC and regulatory filings. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Metabolite identification
Stability-indicating methods
Impurity profiling

Industries

Related to Isoquinoline

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

Isoquinoline impurities

Specifications & identifiers

Chemical identifiers
Product name	Isoquinoline N-oxide
Catalogue No.	VQ-043522
CAS Number	1532-72-5
IUPAC name	2-oxidoisoquinolin-2-ium
Molecular formula	C₉H₇NO
Molecular weight	145.16 g/mol
Exact mass	145.0528
Grade	Reference Standard
HSN code	38229090
InChIKey	RZIAABRFQASVSW-UHFFFAOYSA-N
SMILES	C1=CC=C2C=[N+](C=CC2=C1)[O-]
PubChem CID	290378

Physical properties
Physical form	Solid
LogP (XLogP3)	0.3
H-bond donors / acceptors	0 / 1
TPSA	25.5 Å²
Synonyms	Isoquinoline, 2-oxide, Isoquinolin-N-oxide, Isoquinoline, 2-oxide (8CI), Isoquinoline, 2-oxide (8CI)(9CI), Isoquinoline 2-oxide, Isoquinoline oxide, 2-Oxylatoisoquinoline-2-ium, isoquinoline-oxide, Isoquinoline-2-oxide, 2-oxido-isoquinolin-2-ium, 2-Oxo-2lambda~5~-isoquinoline

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation

Precautionary statements: P264, P264 + P265, P280, P302 + P352, P305 + P351 + P338, P321, P332 + P317, P337 + P317, P362 + P364

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 Isoquinoline N-oxide?

The CAS Registry Number of Isoquinoline N-oxide is 1532-72-5. It is also known as Isoquinoline, 2-oxide, Isoquinolin-N-oxide, Isoquinoline, 2-oxide (8CI).

What is the molecular formula and molecular weight of Isoquinoline N-oxide?

Isoquinoline N-oxide has the molecular formula C9H7NO and a molecular weight of 145.16 g/mol. Its IUPAC name is 2-oxidoisoquinolin-2-ium.

What is Isoquinoline N-oxide used for?

Isoquinoline N-oxide is supplied as a characterised reference material related to Isoquinoline. 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 Isoquinoline N-oxide can I order?

We supply Isoquinoline N-oxide 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 Isoquinoline N-oxide?

Yes. Every lot of Isoquinoline N-oxide 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 Isoquinoline N-oxide be shipped internationally?

Yes. Isoquinoline N-oxide 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.