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Pharmacopeial Impurities (EP / USP / BP)

Estradiol Hemihydrate EP Impurity D

Reference StandardAvailable on request

Estradiol Hemihydrate EP Impurity D (CAS 791-69-5) supplier Zemixal: C18H22O2, COA and SDS with every lot, worldwide shipping.

Pack sizes
Estradiol Hemihydrate EP Impurity D chemical structure
CAS number791-69-5
FormulaC18H22O2
Molar mass270.4 g/mol
Physical formSolid
HS code38229090
InChIKeyFABGTKBXHAEVKL-OWSLCNJRSA-N
IUPAC name(8S,13S,14S,17S)-13-methyl-6,7,8,12,14,15,16,17-octahydrocyclopenta[a]phenanthrene-3,17-diol

About Estradiol Hemihydrate EP Impurity D

Estradiol Hemihydrate EP Impurity D is supplied by Zemixal as a characterised reference material for Estradiol analysis. Identity at a glance (Reference Standard): CAS 791-69-5, formula C18H22O2 and molar mass 270.4 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 (Danger: H351, 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. Each lot travels with 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 Estradiol

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

Estradiol 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 Estradiol Hemihydrate EP Impurity D
Product nameEstradiol Hemihydrate EP Impurity D
Catalogue numberZX-024579
CAS number791-69-5
IUPAC name(8S,13S,14S,17S)-13-methyl-6,7,8,12,14,15,16,17-octahydrocyclopenta[a]phenanthrene-3,17-diol
Molecular formulaC18H22O2
Molar mass270.4 g/mol
Exact mass270.162
GradeReference Standard
Physical formSolid
XLogP33.3
H-bond donors / acceptors2 / 2
Topological polar surface area40.5 Ų
HS code38229090
InChIKeyFABGTKBXHAEVKL-OWSLCNJRSA-N
SMILESC[C@]12CC=C3[C@H]([C@@H]1CC[C@@H]2O)CCC4=C3C=CC(=C4)O
PubChem CID9816888
SynonymsEstradiol EP Impurity D, Delta,9(11)-Estradiol, Estradiol Hemihydrate - Impurity D, ∆9(11)-Estradiol, delta9,11-Estradiol, 9,11-Dehydroestradiol, ZYC-1, (+)-delta9,11-Estradiol, Estra-1,3,5(10),9(11)-tetraene-3,17beta-diol, Estra-1,3,5(10),9(11)-tetraene-3,17-diol, (17.beta.)-, Estra-1,3,5(10),9(11)-tetraene-3,17-diol, (17beta)-, Estradiol Hemihydrate Impurity D

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

Safety and GHS hazards

GHS08 Health hazard
Health hazard

Signal word Danger

  • H351Suspected of causing cancer
  • H360May damage fertility or the unborn child
  • H362May cause harm to breast-fed children

Precautionary statements P203, P260, P263, P264, P270, P280, P318, 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 Estradiol Hemihydrate EP Impurity D
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 Estradiol Hemihydrate EP Impurity D

Which CAS number identifies Estradiol Hemihydrate EP Impurity D?
Estradiol Hemihydrate EP Impurity D is registered under CAS 791-69-5. You may also see it listed as Estradiol EP Impurity D, Delta,9(11)-Estradiol, Estradiol Hemihydrate - Impurity D. Our catalogue number for this item is ZX-024579.
What are the formula and molar mass of Estradiol Hemihydrate EP Impurity D?
For Estradiol Hemihydrate EP Impurity D, its formula is C18H22O2 and its molar mass is 270.4 g/mol. The systematic (IUPAC) name is (8S,13S,14S,17S)-13-methyl-6,7,8,12,14,15,16,17-octahydrocyclopenta[a]phenanthrene-3,17-diol. InChIKey FABGTKBXHAEVKL-OWSLCNJRSA-N lets you match it in any structure database.
How is Estradiol Hemihydrate EP Impurity D used in pharmaceutical QC?
Estradiol Hemihydrate EP Impurity D is a characterised reference material linked to Estradiol. 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 Estradiol Hemihydrate EP Impurity D?
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 Estradiol Hemihydrate EP Impurity D?
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 Estradiol Hemihydrate EP Impurity D to my country?
Yes. Because Estradiol Hemihydrate EP Impurity D 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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