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API Impurities

1-Ethyl-4-Isobutylbenzene

Reference StandardAvailable on request

Order 1-Ethyl-4-Isobutylbenzene (CAS 100319-40-2) online at Zemixal. Request a quote with price, lead time and documents.

Pack sizes
1-Ethyl-4-Isobutylbenzene chemical structure
CAS number100319-40-2
FormulaC12H18
Molar mass162.27 g/mol
Physical formSolid
HS code38229090
InChIKeyFMHWAAZOTFVMKR-UHFFFAOYSA-N
IUPAC name1-ethyl-4-(2-methylpropyl)benzene

About 1-Ethyl-4-Isobutylbenzene

1-Ethyl-4-Isobutylbenzene belongs to the Ibuprofen reference-standard family in the Zemixal catalogue. Identity at a glance (Reference Standard): CAS 100319-40-2, formula C12H18 and molar mass 162.27 g/mol. It is handled as a solid.

Typical applications

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

Safe handling

It carries the GHS signal word Warning (H302), so wear gloves and eye protection and work with good ventilation.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. You receive a certificate of analysis with characterisation data with each order. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Ibuprofen

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

Ibuprofen standards

Typical uses

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

Applications

Specifications and identifiers

Specifications of 1-Ethyl-4-Isobutylbenzene
Product name1-Ethyl-4-Isobutylbenzene
Catalogue numberZX-029874
CAS number100319-40-2
IUPAC name1-ethyl-4-(2-methylpropyl)benzene
Molecular formulaC12H18
Molar mass162.27 g/mol
Exact mass162.1409
GradeReference Standard
Physical formSolid
XLogP34.3
H-bond donors / acceptors0 / 0
Topological polar surface area0 Ų
HS code38229090
InChIKeyFMHWAAZOTFVMKR-UHFFFAOYSA-N
SMILESCCC1=CC=C(C=C1)CC(C)C
PubChem CID576929
Synonymsp-Isobutylethylbenzene, Benzene, 1-ethyl-4-(2-methylpropyl)-, 1-(4'-Isobutylphenyl)ethane, Benzene, 1-ethyl-4-isobutyl-

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

  • H302Harmful if swallowed

Precautionary statements P264, P270, P301 + P317, P330, 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 1-Ethyl-4-Isobutylbenzene
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 1-Ethyl-4-Isobutylbenzene

Which CAS number identifies 1-Ethyl-4-Isobutylbenzene?
1-Ethyl-4-Isobutylbenzene is registered under CAS 100319-40-2. You may also see it listed as p-Isobutylethylbenzene, Benzene, 1-ethyl-4-(2-methylpropyl)-, 1-(4'-Isobutylphenyl)ethane. Our catalogue number for this item is ZX-029874.
What are the formula and molar mass of 1-Ethyl-4-Isobutylbenzene?
For 1-Ethyl-4-Isobutylbenzene, its formula is C12H18 and its molar mass is 162.27 g/mol. The systematic (IUPAC) name is 1-ethyl-4-(2-methylpropyl)benzene. InChIKey FMHWAAZOTFVMKR-UHFFFAOYSA-N lets you match it in any structure database.
How is 1-Ethyl-4-Isobutylbenzene used in pharmaceutical QC?
1-Ethyl-4-Isobutylbenzene is a characterised reference material linked to Ibuprofen. 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 1-Ethyl-4-Isobutylbenzene?
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 1-Ethyl-4-Isobutylbenzene?
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 1-Ethyl-4-Isobutylbenzene to my country?
Yes. Because 1-Ethyl-4-Isobutylbenzene 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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