Phenytoin EP Impurity D

Name: Phenytoin EP Impurity D
Brand: Vaqora Chemicals
SKU: VQ-033161

About Phenytoin EP Impurity D

Listed under CAS 5157-15-3, Phenytoin EP Impurity D is a pharmacopeial impurity of Phenytoin available from Vaqora Chemicals. The compound has the formula C16H14N4O2, corresponding to a molecular weight of 294.31 g/mol. The IUPAC name is 3a,6a-diphenyl-1,3,4,6-tetrahydroimidazo[4,5-d]imidazole-2,5-dione. Common synonyms include Diphenylglycoluril and Phenytoin Sodium - Impurity D.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Good laboratory practice and suitable PPE are recommended during handling.

As a characterised impurity of Phenytoin, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF 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

Pharmacopeial method verification
Impurity profiling
QC release testing
ANDA / DMF filings

Industries

Related to Phenytoin

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

Phenytoin impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Phenytoin EP Impurity D
Catalogue No.	VQ-033161
CAS Number	5157-15-3
IUPAC name	3a,6a-diphenyl-1,3,4,6-tetrahydroimidazo[4,5-d]imidazole-2,5-dione
Molecular formula	C₁₆H₁₄N₄O₂
Molecular weight	294.31 g/mol
Exact mass	294.1117
Grade	Reference Standard
HSN code	38229090
InChIKey	WUDVGTHXCLJVJN-UHFFFAOYSA-N
SMILES	C1=CC=C(C=C1)C23C(NC(=O)N2)(NC(=O)N3)C4=CC=CC=C4
PubChem CID	21237

Physical properties
Physical form	Solid
LogP (XLogP3)	1
H-bond donors / acceptors	4 / 2
TPSA	82.3 Å²
Synonyms	Diphenylglycoluril, Phenytoin Sodium - Impurity D, GLYCOLURIL, 3a,6a-DIPHENYL-, Tetrahydro-3a,6a-diphenylimidazo[4,5-d]imidazole-2,5(1H,3H)-dione, Tetrahydro-3a,6a-diphenylimidazo(4,5-d)imidazole-2,5(1H,3H)-dione, 3a,6a-Diphenylglycoluril, 7,8-Diphenylglycoluril, 3a,6a-Diphenyltetrahydroimidazo[4,5-d]imidazole-2,5(1H,3H)-dione, 3a,6a-Diphenyloctahydroimidazo[4,5-d]imidazole-2,5-dione, Diphenylglycoluril, cis-, Imidazo(4,5-d)imidazole-2,5(1H,3H)-dione, tetrahydro-3a,6a-diphenyl-, Glycoluril,8-diphenyl-

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 Phenytoin EP Impurity D?

The CAS Registry Number of Phenytoin EP Impurity D is 5157-15-3. It is also known as Diphenylglycoluril, Phenytoin Sodium - Impurity D, GLYCOLURIL, 3a,6a-DIPHENYL-.

What is the molecular formula and molecular weight of Phenytoin EP Impurity D?

Phenytoin EP Impurity D has the molecular formula C16H14N4O2 and a molecular weight of 294.31 g/mol. Its IUPAC name is 3a,6a-diphenyl-1,3,4,6-tetrahydroimidazo[4,5-d]imidazole-2,5-dione.

What is Phenytoin EP Impurity D used for?

Phenytoin EP Impurity D is supplied as a characterised reference material related to Phenytoin. 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 Phenytoin EP Impurity D can I order?

We supply Phenytoin EP Impurity D 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 Phenytoin EP Impurity D?

Yes. Every lot of Phenytoin EP Impurity D 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 Phenytoin EP Impurity D be shipped internationally?

Yes. We export Phenytoin EP Impurity D worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.