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API Impurities

(1S,2R,3S)-Aprepitant

Reference StandardAvailable on request

(1S,2R,3S)-Aprepitant (CAS 170902-81-5) supplier Zemixal. Request a quote with price, lead time and documents. Exported from India with full paperwork.

Pack sizes
(1S,2R,3S)-Aprepitant chemical structure
CAS number170902-81-5
FormulaC23H21F7N4O3
Molar mass534.4 g/mol
Physical formSolid
HS code38229090
InChIKeyATALOFNDEOCMKK-OCCQLPPTSA-N
IUPAC name3-[[(2R,3S)-2-[(1S)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy]-3-(4-fluorophenyl)morpholin-4-yl]methyl]-1,4-dihydro-1,2,4-triazol-5-one

About (1S,2R,3S)-Aprepitant

(1S,2R,3S)-Aprepitant belongs to the Fosaprepitant reference-standard family in the Zemixal catalogue. For your records (Reference Standard), the material is defined by CAS 170902-81-5, formula C23H21F7N4O3 and molar mass 534.4 g/mol. It is handled as a solid.

Where it is used

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

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. 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 Fosaprepitant

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

Fosaprepitant standards

Typical uses

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

Applications

Specifications and identifiers

Specifications of (1S,2R,3S)-Aprepitant
Product name(1S,2R,3S)-Aprepitant
Catalogue numberZX-028059
CAS number170902-81-5
IUPAC name3-[[(2R,3S)-2-[(1S)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy]-3-(4-fluorophenyl)morpholin-4-yl]methyl]-1,4-dihydro-1,2,4-triazol-5-one
Molecular formulaC23H21F7N4O3
Molar mass534.4 g/mol
Exact mass534.1502
GradeReference Standard
Physical formSolid
XLogP34.2
H-bond donors / acceptors2 / 12
Topological polar surface area75.2 Ų
HS code38229090
InChIKeyATALOFNDEOCMKK-OCCQLPPTSA-N
SMILESC[C@@H](C1=CC(=CC(=C1)C(F)(F)F)C(F)(F)F)O[C@@H]2[C@@H](N(CCO2)CC3=NNC(=O)N3)C4=CC=C(C=C4)F
PubChem CID135934924
SynonymsAprepitant (S,R,S)-Isomer, [1(S)-Phenylethoxy]-Aprepitant, Aprepitant (MK-0869), Aprepitant, (1S,2R,3S)-, (2R,3R,4R,5S)-6-(hydroxy(methyl)amino)hexane-1,2,3,4,5-pentaol

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

Safety and GHS hazards

No GHS classification is on file for this item. Handle it as an unknown laboratory chemical and request the SDS with your quotation.

Pack sizes

Pack sizes of (1S,2R,3S)-Aprepitant
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 (1S,2R,3S)-Aprepitant

Which CAS number identifies (1S,2R,3S)-Aprepitant?
(1S,2R,3S)-Aprepitant is registered under CAS 170902-81-5. You may also see it listed as Aprepitant (S,R,S)-Isomer, [1(S)-Phenylethoxy]-Aprepitant, Aprepitant (MK-0869). Our catalogue number for this item is ZX-028059.
What are the formula and molar mass of (1S,2R,3S)-Aprepitant?
For (1S,2R,3S)-Aprepitant, its formula is C23H21F7N4O3 and its molar mass is 534.4 g/mol. The systematic (IUPAC) name is 3-[[(2R,3S)-2-[(1S)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy]-3-(4-fluorophenyl)morpholin-4-yl]methyl]-1,4-dihydro-1,2,4-triazol-5-one. InChIKey ATALOFNDEOCMKK-OCCQLPPTSA-N lets you match it in any structure database.
How is (1S,2R,3S)-Aprepitant used in pharmaceutical QC?
(1S,2R,3S)-Aprepitant is a characterised reference material linked to Fosaprepitant. 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 (1S,2R,3S)-Aprepitant?
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 (1S,2R,3S)-Aprepitant?
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 (1S,2R,3S)-Aprepitant to my country?
Yes. (1S,2R,3S)-Aprepitant ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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