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Isobutylene oxide

Isobutylene oxide Structure
Isobutylene oxide structure
CAS No.
558-30-5
Chemical Name:
Isobutylene oxide
Synonyms
2,2-DIMETHYLOXIRANE;Isobutene oxide;1,2-EPOXY-2-METHYLPROPANE;1,2-EPOXYISOBUTANE;1,1-DIMETHYLOXIRANE;Isobutylene epoxide;2-METHYLPROPYLENE OXIDE;2-Methyl-1,2-epoxypropane;isobuteneoxide;Isobutyl Oxide
CBNumber:
CB9460926
Molecular Formula:
C4H8O
Molecular Weight:
72.11
MDL Number:
MFCD00066354
MOL File:
558-30-5.mol
MSDS File:
SDS
Last updated:2026-04-10 10:27:34
Product description Number Pack Size Price
1,2-Epoxy-2-methylpropane 97% 531537 10g $132
1,2-Epoxy-2-methylpropane 97% 531537 50g $458
Isobutylene Oxide >98.0%(GC) I0323 25mL $48
Isobutylene Oxide >98.0%(GC) I0323 500mL $472
1,1-Dimethyloxirane D479065 100g $225
More product size
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Isobutylene oxide Properties

Boiling point 50-51 °C(lit.)
Density 0.812 g/mL at 25 °C(lit.)
refractive index n20/D 1.374(lit.)
Flash point 33 °F
storage temp. Flammables area
solubility 58g/l
form Liquid
Specific Gravity approximate 0.82 (20℃)
color Clear colorless
explosive limit 1.5-13.5%(V)
Water Solubility 58 g/L (20 ºC)
Sensitive Moisture Sensitive
BRN 102408
Henry's Law Constant 2.9×10-2 mol/(m3Pa) at 25℃, Ebert et al. (2023)
InChI 1S/C4H8O/c1-4(2)3-5-4/h3H2,1-2H3
InChIKey GELKGHVAFRCJNA-UHFFFAOYSA-N
SMILES CC1(C)CO1
CAS DataBase Reference 558-30-5(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII UJ14MJ1WG0
NIST Chemistry Reference Oxirane, 2,2-dimethyl-(558-30-5)
EPA Substance Registry System Oxirane, 2,2-dimethyl- (558-30-5)
UNSPSC Code 12162002
NACRES NA.23

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictogramsGHS hazard pictograms
GHS02,GHS05,GHS08
Signal word  Danger
Hazard statements  H225-H314-H341-H351
Precautionary statements  P202-P210-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338
PPE Eyeshields, Faceshields, Gloves
Hazard Codes  F,Xi,Xn,C
Risk Statements  11-36/37/38-20/21/22-34
Safety Statements  16-26-36-36/37/39-45
RIDADR  UN 1993 3/PG 1
WGK Germany  2
RTECS  TZ3580000
TSCA  TSCA listed
HazardClass  3
PackingGroup  II
HS Code  29109000
Storage Class 3 - Flammable liquids
Hazard Classifications Carc. 2
Flam. Liq. 2
Muta. 2
Skin Corr. 1C
Limited Quantities 1.0 L (0.3 gallon) (liquid)
Excepted Quantities Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)
NFPA 704
3
3 0

Isobutylene oxide price More Price(21)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 531537 1,2-Epoxy-2-methylpropane 97% 558-30-5 10g $132 2026-04-30 Buy
Sigma-Aldrich 531537 1,2-Epoxy-2-methylpropane 97% 558-30-5 50g $458 2026-04-30 Buy
TCI Chemical I0323 Isobutylene Oxide >98.0%(GC) 558-30-5 25mL $48 2026-04-30 Buy
TCI Chemical I0323 Isobutylene Oxide >98.0%(GC) 558-30-5 500mL $472 2026-04-30 Buy
TRC D479065 1,1-Dimethyloxirane 558-30-5 100g $225 2021-12-16 Buy
Product number Packaging Price Buy
531537 10g $132 Buy
531537 50g $458 Buy
I0323 25mL $48 Buy
I0323 500mL $472 Buy
D479065 100g $225 Buy

Isobutylene oxide Chemical Properties,Uses,Production

Chemical Properties

clear colorless liquid

Uses

Isobutylene oxide is employed as an initiator for the preparation of polyisobutylenes. It finds application in the synthesis of 1-tert-butylperoxy-2-methyl-propan-2-ol.

Uses

Isobutylene oxide is an epoxide that is used as an initiator in the synthesis of polyisobutylenes.

Definition

ChEBI: 2,2-Dimethyloxirane is an epoxide.

Flammability and Explosibility

Highly flammable

Isobutylene oxide synthesis

115-11-7
558-30-5
Synthesis of Isobutylene oxide from Isobutylene

Isobutylene oxide Preparation Products And Raw materials

Raw materials

Preparation Products

6-Acetyl-4,4-dimethylthio-chroman 2-Methyl-4-(phenylthio)-2-butanol 2-METHYL-4-PHENYL-2-BUTANOL 2-METHYL-2-PENTANOL 1-(3,5-Dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)-2-methylpropan-2-ol
2,5-Dimethyl-2,4-hexadiene 1-(2-METHOXYETHOXY)-2-METHYL-2-PROPANOL 1-((4-(2-fluoro-4-nitrophenoxy)quinolin-7-yl)oxy)-2-Methylpropan-2-ol

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Isobutylene oxide Suppliers

Global( 275)Suppliers
Supplier Tel Email Country ProdList Advantage
JIAXING REGEN CHEMICAL CO.,LTD
+8613385739570 regen_chemical1@163.com China 226 58
Hebei Yanxi Chemical Co., Ltd. 		+8618531123677 faithe@yan-xi.com China 5853 58
Hebei Chuanghai Biotechnology Co., Ltd 		+8615531151365 mina@chuanghaibio.com China 18126 58
Henan Fengda Chemical Co., Ltd 		+86-371-86557731 +86-13613820652 info@fdachem.com China 20124 58
Capot Chemical Co.,Ltd. 		+86-（0）57185586718; +8613336195806 sales@capot.com China 29640 60
Henan Tianfu Chemical Co.,Ltd. 		+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21590 55
Changzhou Ansciep Chemical Co., Ltd. 		+86 519 86305871 sales@ansciepchem.com CHINA 4241 58
Standardpharm Co. Ltd. 		86-714-3992388 overseasales1@yongstandards.com United States 14332 58
CONIER CHEM AND PHARMA LIMITED 		+8618523575427 sales@conier.com China 49977 58
career henan chemical co 		+86-0371-86658258 +8613203830695 factory@coreychem.com China 29794 58
Supplier Advantage
JIAXING REGEN CHEMICAL CO.,LTD
58
Hebei Yanxi Chemical Co., Ltd. 		58
Hebei Chuanghai Biotechnology Co., Ltd 		58
Henan Fengda Chemical Co., Ltd 		58
Capot Chemical Co.,Ltd. 		60
Henan Tianfu Chemical Co.,Ltd. 		55
Changzhou Ansciep Chemical Co., Ltd. 		58
Standardpharm Co. Ltd. 		58
CONIER CHEM AND PHARMA LIMITED 		58
career henan chemical co 		58

View Lastest Price from Isobutylene oxide manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Isobutylene oxide pictures 2025-09-25 Isobutylene oxide
558-30-5
 US $100.00-1.00 / KG 1KG 99% g-kg-tons, free sample is available Henan Fengda Chemical Co., Ltd
Isobutylene oxide pictures 2025-06-27 Isobutylene oxide
558-30-5
 US $0.00-0.00 / KG 1KG 99% 500000kg Hebei Chuanghai Biotechnology Co., Ltd
Isobutylene oxide pictures 2025-06-20 Isobutylene oxide
558-30-5
 US $25.00-13.00 / kg 1kg 0.99 20 tons Hebei Yanxi Chemical Co., Ltd.
  • Isobutylene oxide pictures
  • Isobutylene oxide
    558-30-5
  • US $0.00-0.00 / KG
  • 99%
  • Hebei Chuanghai Biotechnology Co., Ltd

Isobutylene oxide Spectrum

Isobutylene oxide(558-30-5)MSIsobutylene oxide(558-30-5)1HNMRIsobutylene oxide(558-30-5)13CNMRIsobutylene oxide(558-30-5)IR1Isobutylene oxide(558-30-5)IR2

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ISOBUTYLENE OXIDE 1,1-Dimethyloxirane, 1,2-Epoxy-isobutane, Isobutylene oxide Methylpropylene oxide 2,2-Dimethylethylene oxide Isobutylene oxide, 99+% Isobutylene oxide,98% Isobutyl Oxide 2,2-diMethyloxirane(1,2-Epoxy-2-Methylpropane Isobutylene Oxide 99% Isobutylene oxide, 98% 25ML 1,2-Epoxyisobutane 2-Methylpropylene Oxide lsobutylene oxide 1,1-Dimethyloxirane 1,2-Epoxy-iso-butane 1,2-Epoxyisobutane 2-Methylpropylene Oxide 2,2-Dimethyloxirane 2,2-Dimethyloxirane for synthesis 2,2-dimethyl-oxiran 2-Methyl-1-propene oxide isobuteneoxide isobutyleneepoxide Propane, 1,2-epoxy-2-methyl- 1,1-Dimethylethylene oxide 1,1-dimethylethyleneoxide 1,2-epoxy-2-methyl-propan 1,2-Isobutylene oxide 1,2-isobutyleneoxide Lercanidipine Impurity 20 Oxirane, 2,2-dimethyl- IsobutyleneOxide> 1,2-Epoxy-2-methyL Isobutylene oxide ISO 9001：2015 REACH 1,1-DIMETHYLOXIRANE 2-METHYLPROPYLENE OXIDE 2-Methyl-1,2-epoxypropane Isobutylene epoxide 1,2-EPOXY-2-METHYLPROPANE 1,2-EPOXYISOBUTANE Methyl propylene oxide English name: Isobutylene oxide methylcycloxypropane Isobutene oxide 2,2-DIMETHYLOXIRANE 558-30-5 CH32CCH2O CH32C2H2O Simple 3-Membered Ring Compounds Oxiranes Oxiranes Simple 3-Membered Ring Compounds