Ethosuximide EP Impurity B

Name: Ethosuximide EP Impurity B
Brand: Vaqora Chemicals
SKU: VQ-025658

About Ethosuximide EP Impurity B

Ethosuximide EP Impurity B is a pharmacopeial impurity of Ethosuximide carrying the CAS registry number 50598-33-9. Its molecular formula is C7H10O3 and its molecular weight is 142.15 g/mol. Its systematic (IUPAC) name is 3-ethyl-3-methyloxolane-2,5-dione. Alternative names: 3-Ethyldihydro-3-methylfuran-2,5-dione and 2-ethyl-2-methylsuccinic anhydride.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

This Ethosuximide impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

We offer Ethosuximide EP Impurity B in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

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

Industries

Related to Ethosuximide

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

Ethosuximide impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Ethosuximide EP Impurity B
Catalogue No.	VQ-025658
CAS Number	50598-33-9
IUPAC name	3-ethyl-3-methyloxolane-2,5-dione
Molecular formula	C₇H₁₀O₃
Molecular weight	142.15 g/mol
Exact mass	142.063
Grade	Reference Standard
HSN code	38229090
InChIKey	HRMQFEOLGGKZLJ-UHFFFAOYSA-N
SMILES	CCC1(CC(=O)OC1=O)C
PubChem CID	3016533

Physical properties
Physical form	Solid
LogP (XLogP3)	0.8
H-bond donors / acceptors	0 / 3
TPSA	43.4 Å²
Synonyms	3-Ethyldihydro-3-methylfuran-2,5-dione, 2-ethyl-2-methylsuccinic anhydride, 2,5-Furandione, 3-ethyldihydro-3-methyl-, 3-ethyl-3-methyldihydrofuran-2,5-dione, methylethylsuccinic anhydride, 2-ethyl-2-methylsuccinic acid anhydride, 3-ethyl-3-methyl-tetrahydrofuran-2,5-dione

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 Ethosuximide EP Impurity B?

The CAS Registry Number of Ethosuximide EP Impurity B is 50598-33-9. It is also known as 3-Ethyldihydro-3-methylfuran-2,5-dione, 2-ethyl-2-methylsuccinic anhydride, 2,5-Furandione, 3-ethyldihydro-3-methyl-.

What is the molecular formula and molecular weight of Ethosuximide EP Impurity B?

Ethosuximide EP Impurity B has the molecular formula C7H10O3 and a molecular weight of 142.15 g/mol. Its IUPAC name is 3-ethyl-3-methyloxolane-2,5-dione.

What is Ethosuximide EP Impurity B used for?

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

We supply Ethosuximide EP Impurity B 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 Ethosuximide EP Impurity B?

Yes. Every lot of Ethosuximide EP Impurity B 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 Ethosuximide EP Impurity B be shipped internationally?

Yes. Ethosuximide EP Impurity B 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.