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Pharmacopeial Impurities (EP / USP / BP)

Ethinylestradiol EP Impurity G

Reference StandardAvailable on request

Buy Ethinylestradiol EP Impurity G (CAS 38002-18-5) from Zemixal: C20H22O3, COA and SDS with every lot, worldwide shipping.

Pack sizes
Ethinylestradiol EP Impurity G chemical structure
CAS number38002-18-5
FormulaC20H22O3
Molar mass310.4 g/mol
Physical formSolid
HS code38229090
InChIKeyQHTAUDUBRNENFJ-VCNAKFCDSA-N
IUPAC name(8R,9S,13S,14S,17R)-17-ethynyl-3,17-dihydroxy-13-methyl-7,8,9,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-6-one

About Ethinylestradiol EP Impurity G

Analytical teams working on Ethinylestradiol use Ethinylestradiol EP Impurity G as a qualified comparison standard. For your records (Reference Standard), the material is defined by CAS 38002-18-5, formula C20H22O3 and molar mass 310.4 g/mol. It is handled as a solid.

Common uses in the lab and plant

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

Safe handling

Hazard communication follows GHS (Danger: H302, H350, H360 and H362). Our SDS lists exposure controls and first-aid measures.

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 Ethinylestradiol

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

Ethinylestradiol 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 Ethinylestradiol EP Impurity G
Product nameEthinylestradiol EP Impurity G
Catalogue numberZX-021606
CAS number38002-18-5
IUPAC name(8R,9S,13S,14S,17R)-17-ethynyl-3,17-dihydroxy-13-methyl-7,8,9,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-6-one
Molecular formulaC20H22O3
Molar mass310.4 g/mol
Exact mass310.1569
GradeReference Standard
Physical formSolid
XLogP32.7
H-bond donors / acceptors2 / 3
Topological polar surface area57.5 Ų
HS code38229090
InChIKeyQHTAUDUBRNENFJ-VCNAKFCDSA-N
SMILESC[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@]2(C#C)O)CC(=O)C4=C3C=CC(=C4)O
PubChem CID11209099
SynonymsEthinylestradiol - Impurity G, 6-Oxo-ethinylestradiol, 6-Oxo-ethinyl estradiol, 6-Keto ethinyl estradiol, 3,17beta-Dihydroxy-17alpha-ethynylestra-1,3,5(10)-trien-6-one, 3,17-Dihydroxy-19-nor-17alpha-pregna-1,3,5(10)-trien-20-yn-6-one, 19-Norpregna-1,3,5(10)-trien-20-yn-6-one, 3,17-dihydroxy-, (17alpha)-, Ethinylestradiol impurity G, 6-Keto Ethynyl Estradiol, 3,17, A-Dihydroxy-17, A-ethynylestra-1,3,5(10)-trien-6-one, 3,17-Dihydroxy-17alpha-19-norpregna-1,3,5(10)-trien-20-yn-6-one

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
GHS08 Health hazard
Health hazard
GHS09 Hazardous to the environment
Hazardous to the environment

Signal word Danger

  • H302Harmful if swallowed
  • H350May cause cancer
  • H360May damage fertility or the unborn child
  • H362May cause harm to breast-fed children
  • H372Causes damage to organs through prolonged or repeated exposure
  • H410Very toxic to aquatic life with long lasting effects

Precautionary statements P203, P260, P263, P264, P270, P273, P280, P301 + P317, P318, P319, P330, P391, 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 Ethinylestradiol EP Impurity G
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 Ethinylestradiol EP Impurity G

Which CAS number identifies Ethinylestradiol EP Impurity G?
Ethinylestradiol EP Impurity G is registered under CAS 38002-18-5. You may also see it listed as Ethinylestradiol - Impurity G, 6-Oxo-ethinylestradiol, 6-Oxo-ethinyl estradiol. Our catalogue number for this item is ZX-021606.
What are the formula and molar mass of Ethinylestradiol EP Impurity G?
For Ethinylestradiol EP Impurity G, its formula is C20H22O3 and its molar mass is 310.4 g/mol. The systematic (IUPAC) name is (8R,9S,13S,14S,17R)-17-ethynyl-3,17-dihydroxy-13-methyl-7,8,9,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-6-one. InChIKey QHTAUDUBRNENFJ-VCNAKFCDSA-N lets you match it in any structure database.
How is Ethinylestradiol EP Impurity G used in pharmaceutical QC?
Ethinylestradiol EP Impurity G is a characterised reference material linked to Ethinylestradiol. 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 Ethinylestradiol EP Impurity G?
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 Ethinylestradiol EP Impurity G?
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 Ethinylestradiol EP Impurity G to my country?
Yes. Because Ethinylestradiol EP Impurity G 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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