Selexipag Hydroxy Impurity

Name: Selexipag Hydroxy Impurity
Brand: Vaqora Chemicals
SKU: VQ-005869

About Selexipag Hydroxy Impurity

Selexipag Hydroxy Impurity is an impurity of Selexipag carrying the CAS registry number 18591-57-6. With the molecular formula C16H12N2O, it has a molar mass of 248.28 g/mol. Systematically, it is named 5,6-diphenyl-1H-pyrazin-2-one. It is also known as 5,6-Diphenyl-2(1H)-pyrazinone or 2-Hydroxy-5,6-diphenylpyrazine.

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 “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

As a characterised impurity of Selexipag, 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.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Selexipag Hydroxy Impurity is dispatched with a Certificate of Analysis (COA) to destinations worldwide. This item is currently in stock for prompt dispatch.

Typical applications

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

Industries

Related to Selexipag

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

Selexipag impurities

Specifications & identifiers

Chemical identifiers
Product name	Selexipag Hydroxy Impurity
Catalogue No.	VQ-005869
CAS Number	18591-57-6
IUPAC name	5,6-diphenyl-1H-pyrazin-2-one
Molecular formula	C₁₆H₁₂N₂O
Molecular weight	248.28 g/mol
Exact mass	248.095
Grade	Reference Standard
HSN code	38229090
InChIKey	LTWBZUZTTUVPIM-UHFFFAOYSA-N
SMILES	C1=CC=C(C=C1)C2=C(N=CC(=O)N2)C3=CC=CC=C3
PubChem CID	619180

Physical properties
Physical form	Solid
LogP (XLogP3)	2.6
H-bond donors / acceptors	1 / 2
TPSA	41.5 Å²
Synonyms	5,6-Diphenyl-2(1H)-pyrazinone, 2-Hydroxy-5,6-diphenylpyrazine, 5,6-Diphenyl-2-hydroxypyrazine, 5,6-Diphenylpyrazinol, 5,6-diphenylpyrazin-2-ol, 5,6-diphenylpyrazin-2(1H)-one, 2(1H)-Pyrazinone, 5,6-diphenyl-, 5,6-Diphenyl-2-pyrazinol, 5,6-Diphenyl-2-pyrazinol #, 5,6-diphenyl-pyrazin-2(1h)-one, CS-M3067, Pyrazine, 2,3-diphenyl-5-hydroxy-

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H360May damage fertility or the unborn child

Precautionary statements: P203, P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P318, 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 Selexipag Hydroxy Impurity?

The CAS Registry Number of Selexipag Hydroxy Impurity is 18591-57-6. It is also known as 5,6-Diphenyl-2(1H)-pyrazinone, 2-Hydroxy-5,6-diphenylpyrazine, 5,6-Diphenyl-2-hydroxypyrazine.

What is the molecular formula and molecular weight of Selexipag Hydroxy Impurity?

Selexipag Hydroxy Impurity has the molecular formula C16H12N2O and a molecular weight of 248.28 g/mol. Its IUPAC name is 5,6-diphenyl-1H-pyrazin-2-one.

What is Selexipag Hydroxy Impurity used for?

Selexipag Hydroxy Impurity is supplied as a characterised reference material related to Selexipag. 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 Selexipag Hydroxy Impurity can I order?

We supply Selexipag Hydroxy Impurity 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 Selexipag Hydroxy Impurity?

Yes. Every lot of Selexipag Hydroxy Impurity 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 Selexipag Hydroxy Impurity be shipped internationally?

Yes. Selexipag Hydroxy Impurity 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.