Shipping to 128 countriesCOA and SDS with every lotQuotes within one business day
contact@zemixal.com
Bulk CASAccount
Pharmacopeial Impurities (EP / USP / BP)

Ethinylestradiol EP Impurity E

Reference StandardAvailable on request

Ethinylestradiol EP Impurity E (CAS 27521-34-2) supplier Zemixal. Request a quote with price, lead time and documents. Catalogue no. ZX-021607.

Pack sizes
Ethinylestradiol EP Impurity E chemical structure
CAS number27521-34-2
FormulaC20H24O3
Molar mass312.4 g/mol
Physical formSolid
HS code38229090
InChIKeyXFBUZQAUNLRYCT-VTPPTGSRSA-N
IUPAC name(6S,8R,9S,13S,14S,17R)-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,6,17-triol

About Ethinylestradiol EP Impurity E

Ethinylestradiol EP Impurity E is supplied by Zemixal as a characterised reference material for Ethinylestradiol analysis. Identity at a glance (Reference Standard): CAS 27521-34-2, formula C20H24O3 and molar mass 312.4 g/mol. It is handled as a solid.

Where it is used

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

Storage and safety notes

Classified under GHS with signal word Danger and hazard statements H302, H350, H361 and H362. Read the SDS before first use.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Each lot travels with a certificate of analysis with characterisation data. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

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 E
Product nameEthinylestradiol EP Impurity E
Catalogue numberZX-021607
CAS number27521-34-2
IUPAC name(6S,8R,9S,13S,14S,17R)-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,6,17-triol
Molecular formulaC20H24O3
Molar mass312.4 g/mol
Exact mass312.1725
GradeReference Standard
Physical formSolid
XLogP32.4
H-bond donors / acceptors3 / 3
Topological polar surface area60.7 Ų
HS code38229090
InChIKeyXFBUZQAUNLRYCT-VTPPTGSRSA-N
SMILESC[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@]2(C#C)O)C[C@@H](C4=C3C=CC(=C4)O)O
PubChem CID13991348
SynonymsEthinylestradiol - Impurity E, 6alpha-Hydroxy-ethinylestradiol, 6alpha-Hydroxy-ethinyl estradiol, 6alpha-Hydroxy-17alpha-ethynylestradiol, 19-Nor-17alpha-pregna-1,3,5(10)-trien-20-yne-3,6alpha,17-triol, 19-Norpregna-1,3,5(10)-trien-20-yne-3,6,17-triol, (6alpha,17alpha)-, Ethinylestradiol impurity E, 6alpha-Hydroxy Ethynyl Estradiol, 6a-Hydroxy Ethynyl Estradiol, (6alpha,17alpha)-19-Norpregna-1,3,5(10)-trien-20-yne-3,6,17-triol, (6, A,17, A)-19-Norpregna-1,3,5(10)-trien-20-yne-3,6,17-triol

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
  • H361Suspected of damaging fertility or the unborn child
  • H362May cause harm to breast-fed children
  • H400Very toxic to aquatic life
  • H410Very toxic to aquatic life with long lasting effects

Precautionary statements P203, P260, P263, P264, P270, P273, P280, P301 + P317, P318, 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 E
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 E

Which CAS number identifies Ethinylestradiol EP Impurity E?
Ethinylestradiol EP Impurity E is registered under CAS 27521-34-2. You may also see it listed as Ethinylestradiol - Impurity E, 6alpha-Hydroxy-ethinylestradiol, 6alpha-Hydroxy-ethinyl estradiol. Our catalogue number for this item is ZX-021607.
What are the formula and molar mass of Ethinylestradiol EP Impurity E?
For Ethinylestradiol EP Impurity E, its formula is C20H24O3 and its molar mass is 312.4 g/mol. The systematic (IUPAC) name is (6S,8R,9S,13S,14S,17R)-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,6,17-triol. InChIKey XFBUZQAUNLRYCT-VTPPTGSRSA-N lets you match it in any structure database.
How is Ethinylestradiol EP Impurity E used in pharmaceutical QC?
Ethinylestradiol EP Impurity E 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 E?
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 E?
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 E to my country?
Yes. Because Ethinylestradiol EP Impurity E 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.

More Ethinylestradiol standards

More in Pharmacopeial Impurities (EP / USP / BP)

Have a list of compounds to price?

Paste up to 200 CAS numbers into Bulk CAS lookup, or send one enquiry for everything in your quote list. We reply with price, lead time and documents.

Bulk CAS lookup Open quote list
Compare 0 of 4Compare now