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Pharmacopeial Impurities (EP / USP / BP)

Ethosuximide EP Impurity B

Reference StandardAvailable on request

Order Ethosuximide EP Impurity B (CAS 50598-33-9) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery.

Pack sizes
Ethosuximide EP Impurity B chemical structure
CAS number50598-33-9
FormulaC7H10O3
Molar mass142.15 g/mol
Physical formSolid
HS code38229090
InChIKeyHRMQFEOLGGKZLJ-UHFFFAOYSA-N
IUPAC name3-ethyl-3-methyloxolane-2,5-dione

About Ethosuximide EP Impurity B

Ethosuximide EP Impurity B belongs to the Ethosuximide reference-standard family in the Zemixal catalogue. Key data (Reference Standard): CAS 50598-33-9, formula C7H10O3 and molar mass 142.15 g/mol. It is handled as a solid.

Typical applications

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

Handling and storage

Hazard communication follows GHS (Warning: H315, H319 and H335). Our SDS lists exposure controls and first-aid measures.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Every shipment includes a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Ethosuximide

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

Ethosuximide standards

Typical uses

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

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Ethosuximide EP Impurity B
Product nameEthosuximide EP Impurity B
Catalogue numberZX-024619
CAS number50598-33-9
IUPAC name3-ethyl-3-methyloxolane-2,5-dione
Molecular formulaC7H10O3
Molar mass142.15 g/mol
Exact mass142.063
GradeReference Standard
Physical formSolid
XLogP30.8
H-bond donors / acceptors0 / 3
Topological polar surface area43.4 Ų
HS code38229090
InChIKeyHRMQFEOLGGKZLJ-UHFFFAOYSA-N
SMILESCCC1(CC(=O)OC1=O)C
PubChem CID3016533
Synonyms3-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

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

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • 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 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 Ethosuximide EP Impurity B
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

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

Questions about Ethosuximide EP Impurity B

Which CAS number identifies Ethosuximide EP Impurity B?
Ethosuximide EP Impurity B is registered under CAS 50598-33-9. You may also see it listed as 3-Ethyldihydro-3-methylfuran-2,5-dione, 2-ethyl-2-methylsuccinic anhydride, 2,5-Furandione, 3-ethyldihydro-3-methyl-. Our catalogue number for this item is ZX-024619.
What are the formula and molar mass of Ethosuximide EP Impurity B?
For Ethosuximide EP Impurity B, its formula is C7H10O3 and its molar mass is 142.15 g/mol. The systematic (IUPAC) name is 3-ethyl-3-methyloxolane-2,5-dione. InChIKey HRMQFEOLGGKZLJ-UHFFFAOYSA-N lets you match it in any structure database.
How is Ethosuximide EP Impurity B used in pharmaceutical QC?
Ethosuximide EP Impurity B is a characterised reference material linked to Ethosuximide. 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 Ethosuximide EP Impurity B?
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 Ethosuximide EP Impurity B?
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 Ethosuximide EP Impurity B to my country?
Yes. Because Ethosuximide EP Impurity B 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.

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