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API Impurities

4-(4-Methylphenyl)-4-oxobutyric Acid

Reference StandardAvailable on request

4-(4-Methylphenyl)-4-oxobutyric Acid (CAS 4619-20-9) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery.

Pack sizes
4-(4-Methylphenyl)-4-oxobutyric Acid chemical structure
CAS number4619-20-9
FormulaC11H12O3
Molar mass192.21 g/mol
Physical formSolid
HS code38229090
InChIKeyOEEUWZITKKSXAZ-UHFFFAOYSA-N
IUPAC name4-(4-methylphenyl)-4-oxobutanoic acid

About 4-(4-Methylphenyl)-4-oxobutyric Acid

Analytical teams working on Zolpidem use 4-(4-Methylphenyl)-4-oxobutyric Acid as a qualified comparison standard. For your records (Reference Standard), the material is defined by CAS 4619-20-9, formula C11H12O3 and molar mass 192.21 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

Classified under GHS with signal word Warning and hazard statements H315, H319 and H335. 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. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Zolpidem

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

Zolpidem standards

Typical uses

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

Applications

Specifications and identifiers

Specifications of 4-(4-Methylphenyl)-4-oxobutyric Acid
Product name4-(4-Methylphenyl)-4-oxobutyric Acid
Catalogue numberZX-032796
CAS number4619-20-9
IUPAC name4-(4-methylphenyl)-4-oxobutanoic acid
Molecular formulaC11H12O3
Molar mass192.21 g/mol
Exact mass192.0786
GradeReference Standard
Physical formSolid
XLogP31.9
H-bond donors / acceptors1 / 3
Topological polar surface area54.4 Ų
HS code38229090
InChIKeyOEEUWZITKKSXAZ-UHFFFAOYSA-N
SMILESCC1=CC=C(C=C1)C(=O)CCC(=O)O
PubChem CID244162
Synonyms4-Oxo-4-(p-tolyl)butanoic acid, Propionic acid, 3-p-toluoyl-, 3-p-Toluoylpropionic acid, beta-(4-Methylbenzoyl)propionic acid, 4-methyl-gamma-oxobenzenebutanoic acid, 3-(4-Methylbenzoyl)propionic acid, Benzenebutanoic acid, 4-methyl-gamma-oxo-, 4-Oxo-4-(p-tolyl)butyric Acid, 4-Oxo-4-(para-tolyl)-butyric acid, 4-oxo-4-p-tolylbutanoic acid, 4-Oxo-4-(4-tolyl)butyric acid, 3-(p-Toluoyl)propionic acid

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 4-(4-Methylphenyl)-4-oxobutyric 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 4-(4-Methylphenyl)-4-oxobutyric Acid

Which CAS number identifies 4-(4-Methylphenyl)-4-oxobutyric Acid?
4-(4-Methylphenyl)-4-oxobutyric Acid is registered under CAS 4619-20-9. You may also see it listed as 4-Oxo-4-(p-tolyl)butanoic acid, Propionic acid, 3-p-toluoyl-, 3-p-Toluoylpropionic acid. Our catalogue number for this item is ZX-032796.
What are the formula and molar mass of 4-(4-Methylphenyl)-4-oxobutyric Acid?
For 4-(4-Methylphenyl)-4-oxobutyric Acid, its formula is C11H12O3 and its molar mass is 192.21 g/mol. The systematic (IUPAC) name is 4-(4-methylphenyl)-4-oxobutanoic acid. InChIKey OEEUWZITKKSXAZ-UHFFFAOYSA-N lets you match it in any structure database.
How is 4-(4-Methylphenyl)-4-oxobutyric Acid used in pharmaceutical QC?
4-(4-Methylphenyl)-4-oxobutyric Acid is a characterised reference material linked to Zolpidem. 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 4-(4-Methylphenyl)-4-oxobutyric 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 4-(4-Methylphenyl)-4-oxobutyric 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 4-(4-Methylphenyl)-4-oxobutyric Acid to my country?
Yes. Because 4-(4-Methylphenyl)-4-oxobutyric 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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