Selexipag Hydroxy Impurity

Name: Selexipag Hydroxy Impurity
Brand: Zemixal
SKU: ZX-005334

Reference StandardIn stock

Order Selexipag Hydroxy Impurity (CAS 18591-57-6) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery.

Pack sizes

Selexipag Hydroxy Impurity chemical structure

CAS number18591-57-6

FormulaC₁₆H₁₂N₂O

Molar mass248.28 g/mol

Physical formSolid

HS code38229090

InChIKeyLTWBZUZTTUVPIM-UHFFFAOYSA-N

IUPAC name5,6-diphenyl-1H-pyrazin-2-one

About Selexipag Hydroxy Impurity

Analytical teams working on Selexipag use Selexipag Hydroxy Impurity as a qualified comparison standard. For your records (Reference Standard), the material is defined by CAS 18591-57-6, formula C16H12N2O and molar mass 248.28 g/mol. It is handled as a solid.

Use cases we see most often

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

Storage and safety notes

It carries the GHS signal word Danger (H315, H319, H335 and H360), so wear gloves and eye protection and work with good ventilation.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. You receive a certificate of analysis with characterisation data with each order. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Selexipag

See every impurity, metabolite and related compound we list for this API.

Selexipag standards

Typical uses

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

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Specifications and identifiers

Specifications of Selexipag Hydroxy Impurity
Product name	Selexipag Hydroxy Impurity
Catalogue number	ZX-005334
CAS number	18591-57-6
IUPAC name	5,6-diphenyl-1H-pyrazin-2-one
Molecular formula	C₁₆H₁₂N₂O
Molar mass	248.28 g/mol
Exact mass	248.095
Grade	Reference Standard
Physical form	Solid
XLogP3	2.6
H-bond donors / acceptors	1 / 2
Topological polar surface area	41.5 Å²
HS 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
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-

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

Irritant or harmful

Health hazard

Signal word Danger

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 summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Selexipag Hydroxy Impurity
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	Quoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Selexipag Hydroxy Impurity

Which CAS number identifies Selexipag Hydroxy Impurity?

Selexipag Hydroxy Impurity is registered under CAS 18591-57-6. You may also see it listed as 5,6-Diphenyl-2(1H)-pyrazinone, 2-Hydroxy-5,6-diphenylpyrazine, 5,6-Diphenyl-2-hydroxypyrazine. Our catalogue number for this item is ZX-005334.

What are the formula and molar mass of Selexipag Hydroxy Impurity?

For Selexipag Hydroxy Impurity, its formula is C16H12N2O and its molar mass is 248.28 g/mol. The systematic (IUPAC) name is 5,6-diphenyl-1H-pyrazin-2-one. InChIKey LTWBZUZTTUVPIM-UHFFFAOYSA-N lets you match it in any structure database.

How is Selexipag Hydroxy Impurity used in pharmaceutical QC?

Selexipag Hydroxy Impurity is a characterised reference material linked to Selexipag. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.

What grade and pack sizes are available for Selexipag Hydroxy Impurity?

This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.

Which documents come with Selexipag Hydroxy Impurity?

Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.

Can Zemixal ship Selexipag Hydroxy Impurity to my country?

Yes. Because Selexipag Hydroxy Impurity is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

More Selexipag standards

Have a list of compounds to price?

Paste up to 200 CAS numbers into Bulk CAS lookup, or send one enquiry for everything in your quote list. We reply with price, lead time and documents.

Bulk CAS lookup Open quote list