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Pharmacopeial Impurities (EP / USP / BP)

Progesterone EP Impurity B

Reference StandardAvailable on request

Order Progesterone EP Impurity B (CAS 145-14-2) online at Zemixal. Request a quote with price, lead time and documents. Catalogue no. ZX-022587.

Pack sizes
Progesterone EP Impurity B chemical structure
CAS number145-14-2
FormulaC21H32O2
Molar mass316.5 g/mol
Physical formSolid
HS code38229090
InChIKeyRWBRUCCWZPSBFC-RXRZZTMXSA-N
IUPAC name(8S,9S,10R,13S,14S,17S)-17-[(1S)-1-hydroxyethyl]-10,13-dimethyl-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one

About Progesterone EP Impurity B

Analytical teams working on Progesterone use Progesterone EP Impurity B as a qualified comparison standard. Key data (Reference Standard): CAS 145-14-2, formula C21H32O2 and molar mass 316.5 g/mol. It is handled as a solid.

Where it is used

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

Safe handling

It carries the GHS signal word Danger (H351), so wear gloves and eye protection and work with good ventilation.

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. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Progesterone

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

Progesterone 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 Progesterone EP Impurity B
Product nameProgesterone EP Impurity B
Catalogue numberZX-022587
CAS number145-14-2
IUPAC name(8S,9S,10R,13S,14S,17S)-17-[(1S)-1-hydroxyethyl]-10,13-dimethyl-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one
Molecular formulaC21H32O2
Molar mass316.5 g/mol
Exact mass316.2402
GradeReference Standard
Physical formSolid
XLogP34.2
H-bond donors / acceptors1 / 2
Topological polar surface area37.3 Ų
HS code38229090
InChIKeyRWBRUCCWZPSBFC-RXRZZTMXSA-N
SMILESC[C@@H]([C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CCC4=CC(=O)CC[C@]34C)C)O
PubChem CID8956
SynonymsProgesterone - Impurity B, 20(S)-Hydroxyprogesterone, (20S)-20-Hydroxypregn-4-en-3-one, 20alpha-Dihydroprogesterone, 20alpha-Hydroxyprogesterone, 20-alpha-Dihydroprogesterone, 20-alpha-Hydroxyprogesterone, 20alpha-Hydroxypregn-4-en-3-one, Pregn-4-en-3-one, 20-hydroxy-, (20S)-, 20alpha-Hydroxydihydroprogesterone, (S)-20-Hydroxypregn-4-en-3-one, Pregn-4-en-3-one, 20-alpha-hydroxy-

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

Precautionary statements P203, 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 Progesterone 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 Progesterone EP Impurity B

Which CAS number identifies Progesterone EP Impurity B?
Progesterone EP Impurity B is registered under CAS 145-14-2. You may also see it listed as Progesterone - Impurity B, 20(S)-Hydroxyprogesterone, (20S)-20-Hydroxypregn-4-en-3-one. Our catalogue number for this item is ZX-022587.
What are the formula and molar mass of Progesterone EP Impurity B?
For Progesterone EP Impurity B, its formula is C21H32O2 and its molar mass is 316.5 g/mol. The systematic (IUPAC) name is (8S,9S,10R,13S,14S,17S)-17-[(1S)-1-hydroxyethyl]-10,13-dimethyl-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one. InChIKey RWBRUCCWZPSBFC-RXRZZTMXSA-N lets you match it in any structure database.
How is Progesterone EP Impurity B used in pharmaceutical QC?
Progesterone EP Impurity B is a characterised reference material linked to Progesterone. 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 Progesterone 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 Progesterone 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 Progesterone EP Impurity B to my country?
Yes. Because Progesterone 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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