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API Impurities

3,4-Difluorophenylacetic acid

Reference StandardAvailable on request

Buy 3,4-Difluorophenylacetic acid (CAS 658-93-5) from Zemixal. Request a quote with price, lead time and documents. Exported from India with full paperwork.

Pack sizes
3,4-Difluorophenylacetic acid chemical structure
CAS number658-93-5
FormulaC8H6F2O2
Molar mass172.13 g/mol
Physical formSolid
HS code38229090
InChIKeyYCAKYFIYUHHCKW-UHFFFAOYSA-N
IUPAC name2-(3,4-difluorophenyl)acetic acid

About 3,4-Difluorophenylacetic acid

3,4-Difluorophenylacetic acid is supplied by Zemixal as a characterised reference material for Sitagliptin analysis. Identity at a glance (Reference Standard): CAS 658-93-5, formula C8H6F2O2 and molar mass 172.13 g/mol. It is handled as a solid.

Common uses in the lab and plant

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

Safe handling

Hazard communication follows GHS (Warning: H315, H319 and H335). Our SDS lists exposure controls and first-aid measures.

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 Sitagliptin

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

Sitagliptin standards

Typical uses

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

Applications

Specifications and identifiers

Specifications of 3,4-Difluorophenylacetic acid
Product name3,4-Difluorophenylacetic acid
Catalogue numberZX-026226
CAS number658-93-5
IUPAC name2-(3,4-difluorophenyl)acetic acid
Molecular formulaC8H6F2O2
Molar mass172.13 g/mol
Exact mass172.0336
GradeReference Standard
Physical formSolid
XLogP31.6
H-bond donors / acceptors1 / 4
Topological polar surface area37.3 Ų
HS code38229090
InChIKeyYCAKYFIYUHHCKW-UHFFFAOYSA-N
SMILESC1=CC(=C(C=C1CC(=O)O)F)F
PubChem CID69571
Synonyms3,4-DFAA, Benzeneacetic acid, 3,4-difluoro-

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

Signal word Warning

  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + 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 3,4-Difluorophenylacetic acid
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 3,4-Difluorophenylacetic acid

Which CAS number identifies 3,4-Difluorophenylacetic acid?
3,4-Difluorophenylacetic acid is registered under CAS 658-93-5. You may also see it listed as 3,4-DFAA, Benzeneacetic acid, 3,4-difluoro-. Our catalogue number for this item is ZX-026226.
What are the formula and molar mass of 3,4-Difluorophenylacetic acid?
For 3,4-Difluorophenylacetic acid, its formula is C8H6F2O2 and its molar mass is 172.13 g/mol. The systematic (IUPAC) name is 2-(3,4-difluorophenyl)acetic acid. InChIKey YCAKYFIYUHHCKW-UHFFFAOYSA-N lets you match it in any structure database.
How is 3,4-Difluorophenylacetic acid used in pharmaceutical QC?
3,4-Difluorophenylacetic acid is a characterised reference material linked to Sitagliptin. 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 3,4-Difluorophenylacetic acid?
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 3,4-Difluorophenylacetic acid?
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 3,4-Difluorophenylacetic acid to my country?
Yes. Because 3,4-Difluorophenylacetic acid 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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