4,4'-[Methylenebis(methylimino)]diantipyrine

Name: 4,4'-[Methylenebis(methylimino)]diantipyrine
Brand: Vaqora Chemicals
SKU: VQ-026624

About 4,4'-[Methylenebis(methylimino)]diantipyrine

Listed under CAS 810-16-2, 4,4'-[Methylenebis(methylimino)]diantipyrine is an impurity of Metamizole available from Vaqora Chemicals. Its molecular formula is C25H30N6O2 and its molecular weight is 446.5 g/mol.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. It carries the GHS signal word “Warning” with 3 hazard statements. Review the Safety Data Sheet before use.

As a characterised impurity of Metamizole, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

We offer 4,4'-[Methylenebis(methylimino)]diantipyrine in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

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

Industries

Related to Metamizole

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

Metamizole impurities

Specifications & identifiers

Chemical identifiers
Product name	4,4'-[Methylenebis(methylimino)]diantipyrine
Catalogue No.	VQ-026624
CAS Number	810-16-2
IUPAC name	4-[[(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)-methylamino]methyl-methylamino]-1,5-dimethyl-2-phenylpyrazol-3-one
Molecular formula	C₂₅H₃₀N₆O₂
Molecular weight	446.5 g/mol
Exact mass	446.243
Grade	Reference Standard
HSN code	38229090
InChIKey	GEFDLFMKEPTYLA-UHFFFAOYSA-N
SMILES	CC1=C(C(=O)N(N1C)C2=CC=CC=C2)N(C)CN(C)C3=C(N(N(C3=O)C4=CC=CC=C4)C)C
PubChem CID	69935

Physical properties
Physical form	Solid
LogP (XLogP3)	3.2
H-bond donors / acceptors	0 / 6
TPSA	53.6 Å²

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, 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 4,4'-[Methylenebis(methylimino)]diantipyrine?

The CAS Registry Number of 4,4'-[Methylenebis(methylimino)]diantipyrine is 810-16-2. It is also known as 4,4'-(Methylenebis(methylimino))bis(1,2-dihydro-1,5-dimethyl-2-phenyl-3H-pyrazol-3-one).

What is the molecular formula and molecular weight of 4,4'-[Methylenebis(methylimino)]diantipyrine?

4,4'-[Methylenebis(methylimino)]diantipyrine has the molecular formula C25H30N6O2 and a molecular weight of 446.5 g/mol. Its IUPAC name is 4-[[(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)-methylamino]methyl-methylamino]-1,5-dimethyl-2-phenylpyrazol-3-one.

What is 4,4'-[Methylenebis(methylimino)]diantipyrine used for?

4,4'-[Methylenebis(methylimino)]diantipyrine is supplied as a characterised reference material related to Metamizole. 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 4,4'-[Methylenebis(methylimino)]diantipyrine can I order?

We supply 4,4'-[Methylenebis(methylimino)]diantipyrine 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 4,4'-[Methylenebis(methylimino)]diantipyrine?

Yes. Every lot of 4,4'-[Methylenebis(methylimino)]diantipyrine 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 4,4'-[Methylenebis(methylimino)]diantipyrine be shipped internationally?

Yes. 4,4'-[Methylenebis(methylimino)]diantipyrine 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.