Isobutylene Oxide

Name: Isobutylene Oxide
Brand: Zemixal
SKU: ZX-034198

Reference StandardAvailable on request

Buy Isobutylene Oxide (CAS 558-30-5) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-034198.

Pack sizes

CAS number558-30-5

FormulaC₄H₈O

Molar mass72.11 g/mol

Physical formSolid

HS code38229090

InChIKeyGELKGHVAFRCJNA-UHFFFAOYSA-N

IUPAC name2,2-dimethyloxirane

About Isobutylene Oxide

Isobutylene Oxide is supplied by Zemixal as a characterised reference material for N methylpyrrolidone analysis. For your records (Reference Standard), the material is defined by CAS 558-30-5, formula C4H8O and molar mass 72.11 g/mol. It is handled as a solid.

Typical applications

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

Safe handling

Classified under GHS with signal word Danger and hazard statements H225, H314, H318 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. Every shipment includes a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for N methylpyrrolidone

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

N methylpyrrolidone 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 Isobutylene Oxide
Product name	Isobutylene Oxide
Catalogue number	ZX-034198
CAS number	558-30-5
IUPAC name	2,2-dimethyloxirane
Molecular formula	C₄H₈O
Molar mass	72.11 g/mol
Exact mass	72.0575
Grade	Reference Standard
Physical form	Solid
XLogP3	0.5
H-bond donors / acceptors	0 / 1
Topological polar surface area	12.5 Å²
HS code	38229090
InChIKey	GELKGHVAFRCJNA-UHFFFAOYSA-N
SMILES	CC1(CO1)C
PubChem CID	11208
Synonyms	1,1-Dimethyloxirane, Isobutene oxide, 1,2-Epoxyisobutane, Isobutylene epoxide, Oxirane, 2,2-dimethyl-, 2-Methyl-1,2-epoxypropane, 1,2-Isobutylene oxide, 1,1-Dimethylethylene oxide, 2-Methyl-1-propene oxide, Propane, 1,2-epoxy-2-methyl-, 2-MEP

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

Safety and GHS hazards

Flammable

Corrosive

Irritant or harmful

Health hazard

Signal word Danger

H225Highly flammable liquid and vapor
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
H335May cause respiratory irritation
H341Suspected of causing genetic defects
H351Suspected of causing cancer

Precautionary statements P203, P210, P233, P240, P241, P242, P243, P260, P261, P264, P264 + P265, P271, P280, P301 + P330 + P331, P302 + P361 + P354, P303 + P361 + P353, P304 + P340, P305 + P354 + P338, P316, P317, P318, P319, P321, P363

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 Isobutylene Oxide
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 Isobutylene Oxide

Which CAS number identifies Isobutylene Oxide?

Isobutylene Oxide is registered under CAS 558-30-5. You may also see it listed as 1,1-Dimethyloxirane, Isobutene oxide, 1,2-Epoxyisobutane. Our catalogue number for this item is ZX-034198.

What are the formula and molar mass of Isobutylene Oxide?

For Isobutylene Oxide, its formula is C4H8O and its molar mass is 72.11 g/mol. The systematic (IUPAC) name is 2,2-dimethyloxirane. InChIKey GELKGHVAFRCJNA-UHFFFAOYSA-N lets you match it in any structure database.

How is Isobutylene Oxide used in pharmaceutical QC?

Isobutylene Oxide is a characterised reference material linked to N methylpyrrolidone. 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 Isobutylene Oxide?

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 Isobutylene Oxide?

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 Isobutylene Oxide to my country?

Yes. Because Isobutylene Oxide 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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