p-Isobutylstyrene

Name: p-Isobutylstyrene
Brand: Zemixal
SKU: ZX-029877

Reference StandardAvailable on request

Order p-Isobutylstyrene (CAS 63444-56-4) online at Zemixal. Request a quote with price, lead time and documents. Catalogue no. ZX-029877.

Pack sizes

CAS number63444-56-4

FormulaC₁₂H₁₆

Molar mass160.25 g/mol

Physical formSolid

HS code38229090

InChIKeyVTMSSJKVUVVWNJ-UHFFFAOYSA-N

IUPAC name1-ethenyl-4-(2-methylpropyl)benzene

About p-Isobutylstyrene

Zemixal lists p-Isobutylstyrene for laboratories that identify, quantify or control Ibuprofen and its related substances. Key data (Reference Standard): CAS 63444-56-4, formula C12H16 and molar mass 160.25 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 (Danger: H227, H302, H304 and H315). 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. Every shipment includes 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 p-Isobutylstyrene
Product name	p-Isobutylstyrene
Catalogue number	ZX-029877
CAS number	63444-56-4
IUPAC name	1-ethenyl-4-(2-methylpropyl)benzene
Molecular formula	C₁₂H₁₆
Molar mass	160.25 g/mol
Exact mass	160.1252
Grade	Reference Standard
Physical form	Solid
XLogP3	4.3
H-bond donors / acceptors	0 / 0
Topological polar surface area	0 Å²
HS code	38229090
InChIKey	VTMSSJKVUVVWNJ-UHFFFAOYSA-N
SMILES	CC(C)CC1=CC=C(C=C1)C=C
PubChem CID	576146
Synonyms	4-Isobutylstyrene, 1-Isobutyl-4-vinylbenzene, Benzene, 1-ethenyl-4-(2-methylpropyl)-, p-Isobutylstyrene (stabilized with 1per cent W/W tert-Butylcatechol), 1-(4'-Isobutylphenyl)ethene, 1-isobutyl-4-vinyl-benzene, 1-Isobutyl-4-vinylbenzene #

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

Health hazard

Signal word Danger

H227Combustible liquid
H302Harmful if swallowed
H304May be fatal if swallowed and enters airways
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements P210, P261, P264, P264 + P265, P270, P271, P272, P280, P301 + P316, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, P331, P332 + P317, P333 + P317, P337 + P317, P362 + P364, P370 + P378, P403, P403 + P233

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 p-Isobutylstyrene
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 p-Isobutylstyrene

Which CAS number identifies p-Isobutylstyrene?

p-Isobutylstyrene is registered under CAS 63444-56-4. You may also see it listed as 4-Isobutylstyrene, 1-Isobutyl-4-vinylbenzene, Benzene, 1-ethenyl-4-(2-methylpropyl)-. Our catalogue number for this item is ZX-029877.

What are the formula and molar mass of p-Isobutylstyrene?

For p-Isobutylstyrene, its formula is C12H16 and its molar mass is 160.25 g/mol. The systematic (IUPAC) name is 1-ethenyl-4-(2-methylpropyl)benzene. InChIKey VTMSSJKVUVVWNJ-UHFFFAOYSA-N lets you match it in any structure database.

How is p-Isobutylstyrene used in pharmaceutical QC?

p-Isobutylstyrene 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 p-Isobutylstyrene?

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 p-Isobutylstyrene?

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 p-Isobutylstyrene to my country?

Yes. Because p-Isobutylstyrene 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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