4-Isobutylbenzoic acid

Name: 4-Isobutylbenzoic acid
Brand: Zemixal
SKU: ZX-025060

Reference StandardAvailable on request

Buy 4-Isobutylbenzoic acid (CAS 38861-88-0) from Zemixal: C11H14O2, COA and SDS with every lot, worldwide shipping. Quotes within one business day.

Pack sizes

4-Isobutylbenzoic acid chemical structure

CAS number38861-88-0

FormulaC₁₁H₁₄O₂

Molar mass178.23 g/mol

Physical formSolid

HS code38229090

InChIKeyVUBBCFWWSKOHTH-UHFFFAOYSA-N

IUPAC name4-(2-methylpropyl)benzoic acid

About 4-Isobutylbenzoic acid

Analytical teams working on Ibuprofen use 4-Isobutylbenzoic acid as a qualified comparison standard. Identity at a glance (Reference Standard): CAS 38861-88-0, formula C11H14O2 and molar mass 178.23 g/mol. It is handled as a solid.

Typical applications

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

Storage and safety notes

Classified under GHS with signal word Warning and hazard statements H302. Read the SDS before first use.

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. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

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

Pharmaceutical Manufacturing and QC Research Labs and Universities

Specifications and identifiers

Specifications of 4-Isobutylbenzoic acid
Product name	4-Isobutylbenzoic acid
Catalogue number	ZX-025060
CAS number	38861-88-0
IUPAC name	4-(2-methylpropyl)benzoic acid
Molecular formula	C₁₁H₁₄O₂
Molar mass	178.23 g/mol
Exact mass	178.0994
Grade	Reference Standard
Physical form	Solid
XLogP3	3.7
H-bond donors / acceptors	1 / 2
Topological polar surface area	37.3 Å²
HS code	38229090
InChIKey	VUBBCFWWSKOHTH-UHFFFAOYSA-N
SMILES	CC(C)CC1=CC=C(C=C1)C(=O)O
PubChem CID	38111
Synonyms	Benzoic acid, 4-(2-methylpropyl)-, BENZOIC ACID, p-ISOBUTYL-, p-isobutylbenzoic acid

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

Safety and GHS hazards

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 4-Isobutylbenzoic acid
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	Quoted 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-Isobutylbenzoic acid

Which CAS number identifies 4-Isobutylbenzoic acid?

4-Isobutylbenzoic acid is registered under CAS 38861-88-0. You may also see it listed as Benzoic acid, 4-(2-methylpropyl)-, BENZOIC ACID, p-ISOBUTYL-, p-isobutylbenzoic acid. Our catalogue number for this item is ZX-025060.

What are the formula and molar mass of 4-Isobutylbenzoic acid?

For 4-Isobutylbenzoic acid, its formula is C11H14O2 and its molar mass is 178.23 g/mol. The systematic (IUPAC) name is 4-(2-methylpropyl)benzoic acid. InChIKey VUBBCFWWSKOHTH-UHFFFAOYSA-N lets you match it in any structure database.

How is 4-Isobutylbenzoic acid used in pharmaceutical QC?

4-Isobutylbenzoic acid 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 4-Isobutylbenzoic 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-Isobutylbenzoic 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-Isobutylbenzoic acid to my country?

Yes. Because 4-Isobutylbenzoic 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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