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API Impurities

ent-Paroxol

Reference StandardAvailable on request

Buy ent-Paroxol (CAS 389573-45-9) from Zemixal. Request a quote with price, lead time and documents. Part of our API Impurities range.

Pack sizes
ent-Paroxol chemical structure
CAS number389573-45-9
FormulaC13H18FNO
Molar mass223.29 g/mol
Physical formSolid
HS code38229090
InChIKeyCXRHUYYZISIIMT-DGCLKSJQSA-N
IUPAC name[(3R,4S)-4-(4-fluorophenyl)-1-methylpiperidin-3-yl]methanol

About ent-Paroxol

Zemixal lists ent-Paroxol for laboratories that identify, quantify or control Paroxetine and its related substances. Identity at a glance (Reference Standard): CAS 389573-45-9, formula C13H18FNO and molar mass 223.29 g/mol. It is handled as a solid.

Typical applications

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Safe handling

Classified under GHS with signal word Danger and hazard statements H302, H318 and H411. 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. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Paroxetine

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

Paroxetine standards

Typical uses

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Applications

Specifications and identifiers

Specifications of ent-Paroxol
Product nameent-Paroxol
Catalogue numberZX-031748
CAS number389573-45-9
IUPAC name[(3R,4S)-4-(4-fluorophenyl)-1-methylpiperidin-3-yl]methanol
Molecular formulaC13H18FNO
Molar mass223.29 g/mol
Exact mass223.1372
GradeReference Standard
Physical formSolid
XLogP31.8
H-bond donors / acceptors1 / 3
Topological polar surface area23.5 Ų
HS code38229090
InChIKeyCXRHUYYZISIIMT-DGCLKSJQSA-N
SMILESCN1CC[C@@H]([C@H](C1)CO)C2=CC=C(C=C2)F
PubChem CID9800834
Synonyms(3R,4S)-N-Methyl Paroxol, ((3R,4S)-4-(4-fluorophenyl)-1-methylpiperidin-3-yl)methanol, ((3R,4S)-rel-4-(4-Fluorophenyl)-1-methylpiperidin-3-yl)methanol, (+)-Paroxol, Paroxol, (+)-, Paroxol, trans-(+)-, 3-Piperidinemethanol, 4-(4-fluorophenyl)-1-methyl-, (3R,4S)-, (+)-trans-4-(4'-Fluorophenyl)-3-hydroxymethyl-1-methylpiperidine, 3-Piperidinemethanol, 4-(4-fluorophenyl)-1-methyl-, (3R,4S)-rel-, (3R,4S)-4-(4-Fluorophenyl)-3-hydroxymethyl-1-methylpiperidine, (3R,4S)-4-(4-Fluorophenyl)-1-methylpiperidine-3-methanol, [(3R,4S)-4-(4-fluorophenyl)-1-methyl-3-piperidyl]methanol

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

Safety and GHS hazards

GHS05 Corrosive
Corrosive
GHS07 Irritant or harmful
Irritant or harmful
GHS09 Hazardous to the environment
Hazardous to the environment

Signal word Danger

  • H302Harmful if swallowed
  • H318Causes serious eye damage
  • H411Toxic to aquatic life with long lasting effects

Precautionary statements P264, P264 + P265, P270, P273, P280, P301 + P317, P305 + P354 + P338, P317, P330, P391, 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 ent-Paroxol
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 ent-Paroxol

Which CAS number identifies ent-Paroxol?
ent-Paroxol is registered under CAS 389573-45-9. You may also see it listed as (3R,4S)-N-Methyl Paroxol, ((3R,4S)-4-(4-fluorophenyl)-1-methylpiperidin-3-yl)methanol, ((3R,4S)-rel-4-(4-Fluorophenyl)-1-methylpiperidin-3-yl)methanol. Our catalogue number for this item is ZX-031748.
What are the formula and molar mass of ent-Paroxol?
For ent-Paroxol, its formula is C13H18FNO and its molar mass is 223.29 g/mol. The systematic (IUPAC) name is [(3R,4S)-4-(4-fluorophenyl)-1-methylpiperidin-3-yl]methanol. InChIKey CXRHUYYZISIIMT-DGCLKSJQSA-N lets you match it in any structure database.
How is ent-Paroxol used in pharmaceutical QC?
ent-Paroxol is a characterised reference material linked to Paroxetine. 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 ent-Paroxol?
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 ent-Paroxol?
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 ent-Paroxol to my country?
Yes. Because ent-Paroxol 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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