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Pharmacopeial Impurities (EP / USP / BP)

Alfacalcidol EP Impurity A

Reference StandardAvailable on request

Alfacalcidol EP Impurity A (CAS 65445-14-9) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-020539.

Pack sizes
Alfacalcidol EP Impurity A chemical structure
CAS number65445-14-9
FormulaC27H44O2
Molar mass400.6 g/mol
Physical formSolid
HS code38229090
InChIKeyOFHCOWSQAMBJIW-AOSUDXALSA-N
IUPAC nametrans-(1R,3S,5E)-5-[(2E)-2-[(1R,3aS,7aR)-7a-methyl-1-[(2R)-6-methylheptan-2-yl]-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexane-1,3-diol

About Alfacalcidol EP Impurity A

Alfacalcidol EP Impurity A is supplied by Zemixal as a characterised reference material for Alfacalcidol analysis. Key data (Reference Standard): CAS 65445-14-9, formula C27H44O2 and molar mass 400.6 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

Storage and safety notes

It carries the GHS signal word Danger (H300, H311, H330 and H372), so wear gloves and eye protection and work with good ventilation.

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 Alfacalcidol

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

Alfacalcidol 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 Alfacalcidol EP Impurity A
Product nameAlfacalcidol EP Impurity A
Catalogue numberZX-020539
CAS number65445-14-9
IUPAC nametrans-(1R,3S,5E)-5-[(2E)-2-[(1R,3aS,7aR)-7a-methyl-1-[(2R)-6-methylheptan-2-yl]-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexane-1,3-diol
Molecular formulaC27H44O2
Molar mass400.6 g/mol
Exact mass400.3341
GradeReference Standard
Physical formSolid
XLogP36.8
H-bond donors / acceptors2 / 2
Topological polar surface area40.5 Ų
HS code38229090
InChIKeyOFHCOWSQAMBJIW-AOSUDXALSA-N
SMILESC[C@H](CCCC(C)C)[C@H]1CC[C@@H]\2[C@@]1(CCC/C2=C\C=C\3/C[C@H](C[C@@H](C3=C)O)O)C
PubChem CID5283718
Synonymstrans-Alfacalcidol, (1-alpha,3-beta,5E,7E)-9,10-Secocholesta-5,7,10(19)-triene-1,3-diol, 9,10-Secocholesta-5,7,10(19)-triene-1,3-diol, (1-alpha,3-beta,5E,7E)-, 9,10-Secocholesta-5,7,10(19)-triene-1,3-diol, (1alpha,3beta,5E,7E)-, 9,10-Secocholesta-5,7,10(19)-triene-1,3-diol, (1alpha,3beta,5E,7E)-(9CI), 5,6-trans-Alfacalcidol, (5E,7E)-(1S,3R)-9,10-seco-5,7,10(19)-cholestatriene-1,3-diol, 9,10-Secocholesta-5,7,10(19)-triene-1,3-diol, (1a,3b,5E,7E)-, (1S,3R,5E,7E)-9,10-Secocholesta-5,7,10(19)-triene-1,3-diol (trans-Alfacalcidol), (5E)-1alpha-hydroxycholecalciferol, (1R,3S,5Z,7E)-9,10-Secocholesta-5,7,10-triene-1,3-diol

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

Safety and GHS hazards

GHS06 Acute toxicity
Acute toxicity
GHS08 Health hazard
Health hazard

Signal word Danger

  • H300Fatal if swallowed
  • H311Toxic in contact with skin
  • H330Fatal if inhaled
  • H372Causes damage to organs through prolonged or repeated exposure

Precautionary statements P260, P262, P264, P270, P271, P280, P284, P301 + P316, P302 + P352, P304 + P340, P316, P319, P320, P321, P330, P361 + P364, P403 + P233, 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 Alfacalcidol 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 Alfacalcidol EP Impurity A

Which CAS number identifies Alfacalcidol EP Impurity A?
Alfacalcidol EP Impurity A is registered under CAS 65445-14-9. You may also see it listed as trans-Alfacalcidol, (1-alpha,3-beta,5E,7E)-9,10-Secocholesta-5,7,10(19)-triene-1,3-diol, 9,10-Secocholesta-5,7,10(19)-triene-1,3-diol, (1-alpha,3-beta,5E,7E)-. Our catalogue number for this item is ZX-020539.
What are the formula and molar mass of Alfacalcidol EP Impurity A?
For Alfacalcidol EP Impurity A, its formula is C27H44O2 and its molar mass is 400.6 g/mol. InChIKey OFHCOWSQAMBJIW-AOSUDXALSA-N lets you match it in any structure database.
How is Alfacalcidol EP Impurity A used in pharmaceutical QC?
Alfacalcidol EP Impurity A is a characterised reference material linked to Alfacalcidol. 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 Alfacalcidol 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 Alfacalcidol 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 Alfacalcidol EP Impurity A to my country?
Yes. Because Alfacalcidol 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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