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Pharmacopeial Impurities (EP / USP / BP)

Budesonide EP Impurity A

Reference StandardAvailable on request

Order Budesonide EP Impurity A (CAS 13951-70-7) online at Zemixal: C21H28O6, COA and SDS with every lot, worldwide shipping.

Pack sizes
Budesonide EP Impurity A chemical structure
CAS number13951-70-7
FormulaC21H28O6
Molar mass376.4 g/mol
Physical formSolid
HS code38229090
InChIKeySEKYBDYVXDAYPY-ILNISADRSA-N
IUPAC name(8S,9S,10R,11S,13S,14S,16R,17S)-11,16,17-trihydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-3-one

About Budesonide EP Impurity A

Zemixal lists Budesonide EP Impurity A for laboratories that identify, quantify or control Budesonide and its related substances. Key data (Reference Standard): CAS 13951-70-7, formula C21H28O6 and molar mass 376.4 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

Handling and storage

Classified under GHS with signal word Danger and hazard statements H360, H361, H362 and H373. Read the SDS before first use.

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. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Budesonide

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

Budesonide standards

Typical uses

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

Applications

Grade guides

Specifications and identifiers

Specifications of Budesonide EP Impurity A
Product nameBudesonide EP Impurity A
Catalogue numberZX-019743
CAS number13951-70-7
IUPAC name(8S,9S,10R,11S,13S,14S,16R,17S)-11,16,17-trihydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-3-one
Molecular formulaC21H28O6
Molar mass376.4 g/mol
Exact mass376.1886
GradeReference Standard
Physical formSolid
XLogP31.2
H-bond donors / acceptors4 / 6
Topological polar surface area115 Ų
HS code38229090
InChIKeySEKYBDYVXDAYPY-ILNISADRSA-N
SMILESC[C@]12C[C@@H]([C@H]3[C@H]([C@@H]1C[C@H]([C@@]2(C(=O)CO)O)O)CCC4=CC(=O)C=C[C@]34C)O
PubChem CID11047056
SynonymsBudesonide - Impurity A, 16alpha-Hydroxyprednisolone, Pregna-1,4-diene-3,20-dione, 11,16,17,21-tetrahydroxy-, (11beta,16alpha)-, Pregna-1,4-diene-3,20-dione, 11,16,17,21-tetrahydroxy-, (11.beta.,16.alpha.)-, 16, A-Hydroxyprednisolone, 11beta,16alpha,17,21-Tetrahydroxypregna-1,4-diene-3,20-dione, 11a,16b,17,21-Tetrahydroxy-pregna-1,4-diene-3,20-dione, (11beta,16alpha)-11,16,17,21-tetrahydroxypregna-1,4-diene-3,20-dione, 11b,16a,17a,21-Tetrahydroxypregna-1,4-diene-3,20-dione, 11beta,16alpha,17,21-Tetrahydroxypregna-1,4-diene-3,20-dione (16alpha-Hydroxyprednisolone), Pregna-1,4-diene-3,20-dione, 11,16,17,21-tetrahydroxy-, (11b,16a)-

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

  • H360May damage fertility or the unborn child
  • H361Suspected of damaging fertility or the unborn child
  • H362May cause harm to breast-fed children
  • H373May causes damage to organs through prolonged or repeated exposure

Precautionary statements P203, P260, P263, P264, P270, P280, P318, P319, 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 Budesonide EP Impurity A
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 Budesonide EP Impurity A

Which CAS number identifies Budesonide EP Impurity A?
Budesonide EP Impurity A is registered under CAS 13951-70-7. You may also see it listed as Budesonide - Impurity A, 16alpha-Hydroxyprednisolone, Pregna-1,4-diene-3,20-dione, 11,16,17,21-tetrahydroxy-, (11beta,16alpha)-. Our catalogue number for this item is ZX-019743.
What are the formula and molar mass of Budesonide EP Impurity A?
For Budesonide EP Impurity A, its formula is C21H28O6 and its molar mass is 376.4 g/mol. The systematic (IUPAC) name is (8S,9S,10R,11S,13S,14S,16R,17S)-11,16,17-trihydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-3-one. InChIKey SEKYBDYVXDAYPY-ILNISADRSA-N lets you match it in any structure database.
How is Budesonide EP Impurity A used in pharmaceutical QC?
Budesonide EP Impurity A is a characterised reference material linked to Budesonide. 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 Budesonide EP Impurity A?
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 Budesonide EP Impurity A?
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 Budesonide EP Impurity A to my country?
Yes. Because Budesonide EP Impurity A 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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