Diantipyrylmethane

Name: Diantipyrylmethane
Brand: Zemixal
SKU: ZX-047987

Reference StandardAvailable on request

Order Diantipyrylmethane (CAS 1251-85-0) online at Zemixal: C23H24N4O2, COA and SDS with every lot, worldwide shipping. Quotes within one business day.

Pack sizes

CAS number1251-85-0

FormulaC₂₃H₂₄N₄O₂

Molar mass388.5 g/mol

Physical formSolid

HS code38229090

InChIKeyQATHNKNPUVVKHK-UHFFFAOYSA-N

IUPAC name4-[(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)methyl]-1,5-dimethyl-2-phenylpyrazol-3-one

About Diantipyrylmethane

Diantipyrylmethane is supplied by Zemixal as a characterised reference material for Antipyrine analysis. Identity at a glance (Reference Standard): CAS 1251-85-0, formula C23H24N4O2 and molar mass 388.5 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

Handling and storage

It carries the GHS signal word Warning (H302, H315, H317 and H319), 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. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Antipyrine

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

Antipyrine 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 Diantipyrylmethane
Product name	Diantipyrylmethane
Catalogue number	ZX-047987
CAS number	1251-85-0
IUPAC name	4-[(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)methyl]-1,5-dimethyl-2-phenylpyrazol-3-one
Molecular formula	C₂₃H₂₄N₄O₂
Molar mass	388.5 g/mol
Exact mass	388.1899
Grade	Reference Standard
Physical form	Solid
XLogP3	4
H-bond donors / acceptors	0 / 4
Topological polar surface area	47.1 Å²
HS code	38229090
InChIKey	QATHNKNPUVVKHK-UHFFFAOYSA-N
SMILES	CC1=C(C(=O)N(N1C)C2=CC=CC=C2)CC3=C(N(N(C3=O)C4=CC=CC=C4)C)C
PubChem CID	96229
Synonyms	Diantipyrinylmethane, Bisantipyrylmethane, Antipyrine, 4,4'-methylenedi-, 4,4'-Methylenebis(1,2-dihydro-1,5-dimethyl-2-phenyl-3H-pyrazol-3-one), 4,4'-methylenebis[1,2-dihydro-1,5-dimethyl-2-phenyl-3H-pyrazol-3-one], 4,4'-Methylenediantipyrine, 4,4'-Methylenebis(1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one), 4,4'-Diantipyrylmethane, 4-4'-Diantipyrylmethane

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

Signal word Warning

H302Harmful if swallowed
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P270, P271, P272, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, P332 + P317, P333 + 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 Diantipyrylmethane
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 Diantipyrylmethane

Which CAS number identifies Diantipyrylmethane?

Diantipyrylmethane is registered under CAS 1251-85-0. You may also see it listed as Diantipyrinylmethane, Bisantipyrylmethane, Antipyrine, 4,4'-methylenedi-. Our catalogue number for this item is ZX-047987.

What are the formula and molar mass of Diantipyrylmethane?

For Diantipyrylmethane, its formula is C23H24N4O2 and its molar mass is 388.5 g/mol. The systematic (IUPAC) name is 4-[(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)methyl]-1,5-dimethyl-2-phenylpyrazol-3-one. InChIKey QATHNKNPUVVKHK-UHFFFAOYSA-N lets you match it in any structure database.

How is Diantipyrylmethane used in pharmaceutical QC?

Diantipyrylmethane is a characterised reference material linked to Antipyrine. 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 Diantipyrylmethane?

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 Diantipyrylmethane?

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 Diantipyrylmethane to my country?

Yes. Because Diantipyrylmethane 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 Antipyrine standards

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