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API Impurities

Fenoxaprop P-Ethyl

Reference StandardAvailable on request

Buy Fenoxaprop P-Ethyl (CAS 71283-80-2) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Part of our API Impurities range.

Pack sizes
Fenoxaprop P-Ethyl chemical structure
CAS number71283-80-2
FormulaC18H16ClNO5
Molar mass361.8 g/mol
Physical formSolid
HS code38229090
InChIKeyPQKBPHSEKWERTG-LLVKDONJSA-N
IUPAC nameethyl (2R)-2-[4-[(6-chloro-1,3-benzoxazol-2-yl)oxy]phenoxy]propanoate

About Fenoxaprop P-Ethyl

Fenoxaprop P-Ethyl belongs to the Fenoxaprop reference-standard family in the Zemixal catalogue. For your records (Reference Standard), the material is defined by CAS 71283-80-2, formula C18H16ClNO5 and molar mass 361.8 g/mol. It is handled as a solid.

Use cases we see most often

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

Safe handling

It carries the GHS signal word Warning (H317, H373, H400 and H410), 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. 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 Fenoxaprop

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

Fenoxaprop standards

Typical uses

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

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of Fenoxaprop P-Ethyl
Product nameFenoxaprop P-Ethyl
Catalogue numberZX-031312
CAS number71283-80-2
IUPAC nameethyl (2R)-2-[4-[(6-chloro-1,3-benzoxazol-2-yl)oxy]phenoxy]propanoate
Molecular formulaC18H16ClNO5
Molar mass361.8 g/mol
Exact mass361.0717
GradeReference Standard
Physical formSolid
XLogP34.1
H-bond donors / acceptors0 / 6
Topological polar surface area70.8 Ų
HS code38229090
InChIKeyPQKBPHSEKWERTG-LLVKDONJSA-N
SMILESCCOC(=O)[C@@H](C)OC1=CC=C(C=C1)OC2=NC3=C(O2)C=C(C=C3)Cl
PubChem CID91707
SynonymsFenoxaprop-P-ethyl R Isomer, Ethyl (2R)-(+)-2-[4-(6-chlorobenzoxazol-2-yloxy)phenoxy]propionate, Fenoxaprop-P-ethyl [ISO:BSI], WHIP S, WHIP 360, Propanoic acid, 2-(4-((6-chloro-2-benzoxazolyl)oxy)phenoxy)-, ethyl ester, (2R)-, Ethyl (R)-2-[4-[(6-Chlorobenzo[d]oxazol-2-yl)oxy]phenoxy]propanoate

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

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful
GHS08 Health hazard
Health hazard
GHS09 Hazardous to the environment
Hazardous to the environment

Signal word Warning

  • H317May cause an allergic skin reaction
  • H373May causes damage to organs through prolonged or repeated exposure
  • H400Very toxic to aquatic life
  • H410Very toxic to aquatic life with long lasting effects

Precautionary statements P260, P261, P272, P273, P280, P302 + P352, P319, P321, P333 + P317, P362 + P364, 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 Fenoxaprop P-Ethyl
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 Fenoxaprop P-Ethyl

Which CAS number identifies Fenoxaprop P-Ethyl?
Fenoxaprop P-Ethyl is registered under CAS 71283-80-2. You may also see it listed as Fenoxaprop-P-ethyl R Isomer, Ethyl (2R)-(+)-2-[4-(6-chlorobenzoxazol-2-yloxy)phenoxy]propionate, Fenoxaprop-P-ethyl [ISO:BSI]. Our catalogue number for this item is ZX-031312.
What are the formula and molar mass of Fenoxaprop P-Ethyl?
For Fenoxaprop P-Ethyl, its formula is C18H16ClNO5 and its molar mass is 361.8 g/mol. The systematic (IUPAC) name is ethyl (2R)-2-[4-[(6-chloro-1,3-benzoxazol-2-yl)oxy]phenoxy]propanoate. InChIKey PQKBPHSEKWERTG-LLVKDONJSA-N lets you match it in any structure database.
How is Fenoxaprop P-Ethyl used in pharmaceutical QC?
Fenoxaprop P-Ethyl is a characterised reference material linked to Fenoxaprop. 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 Fenoxaprop P-Ethyl?
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 Fenoxaprop P-Ethyl?
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 Fenoxaprop P-Ethyl to my country?
Yes. Because Fenoxaprop P-Ethyl 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.

More Fenoxaprop standards

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