4-Methyl-2-pentanol
- CAS No.
- 108-11-2
- Chemical Name:
- 4-Methyl-2-pentanol
- Synonyms
- MIBC;METHYL ISOBUTYL CARBINOL;4-Methylpentan-2-ol;MAOH;4-methyl-2-pentano;2-METHYL-4-PENTANOL;FEMA 3351;METHYL AMYL ALCOHOL;1,3-Dimethyl-1-butanol;ISOBUTYL METHYL CARBINOL
- CBNumber:
- CB6852735
- Molecular Formula:
- C6H14O
- Molecular Weight:
- 102.17
- MDL Number:
- MFCD00004550
- MOL File:
- 108-11-2.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | -90 °C |
|---|---|
| Boiling point | 134-135 °C(lit.) |
| Density | 0.802 g/mL at 25 °C(lit.) |
| vapor density | 3.5 (vs air) |
| vapor pressure | 3.7 mm Hg ( 20 °C) |
| refractive index |
n |
| FLAVIS Number | 02.183 | 4-Methylpentan-2-ol |
| Flash point | 107 °F |
| storage temp. | Store below +30°C. |
| solubility | 16.4g/l |
| form | Liquid |
| pka | 15.31±0.20(Predicted) |
| color | Clear colorless |
| Odor | Sharp; mild and nonresidual. |
| Odor Type | pungent |
| explosive limit | 1-5.5%(V) |
| Water Solubility | 2 g/100 mL |
| Specific Heat Capacity | Cp(liquid): 2.67 J/(g·K), at 25℃ |
| BRN | 1098268 |
| Henry's Law Constant | 2.2×10-1 mol/(m3Pa) at 25℃, Brockbank (2013) |
| Exposure limits |
ACGIH:TLV-TWA 20 ppm; TLV-STEL 40 ppm OSHA:PEL-TWA 25 ppm (100 mg/m3) NIOSH:REL-TWA 25 ppm; REL-STEL 40 ppm |
| Stability | Stable. Flammable. Incompatible with oxidizing agents, acids, acid chlorides. |
| Cosmetics Ingredients Functions | PERFUMING |
| InChI | 1S/C6H14O/c1-5(2)4-6(3)7/h5-7H,4H2,1-3H3 |
| InChIKey | WVYWICLMDOOCFB-UHFFFAOYSA-N |
| SMILES | CC(C)CC(C)O |
| LogP | 1.57 at 20℃ |
| CAS DataBase Reference | 108-11-2(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | 8U34XJK0R0 |
| NIST Chemistry Reference | 2-Pentanol, 4-methyl-(108-11-2) |
| EPA Substance Registry System | 4-Methyl-2-pentanol (108-11-2) |
| UNSPSC Code | 41116107 |
| NACRES | NA.24 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS02,GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H303+H313-H316-H319-H335-H336-H226 | |||||||||
| Precautionary statements | P501-P261-P240-P210-P233-P243-P241-P242-P271-P264-P280-P370+P378-P312-P337+P313-P305+P351+P338-P303+P361+P353-P332+P313-P304+P340+P312-P403+P233-P403+P235-P405 | |||||||||
| target organs | Respiratory system | |||||||||
| PPE | Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 10-37-36/37/38 | |||||||||
| Safety Statements | 24/25-26 | |||||||||
| OEB | A | |||||||||
| OEL | TWA: 25 ppm (100 mg/m3), STEL: 40 ppm (165 mg/m3) [skin] | |||||||||
| RIDADR | UN 2053 | |||||||||
| WGK Germany | 1 | |||||||||
| RTECS | SA7350000 | |||||||||
| Autoignition Temperature | 305 °C | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 3 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29051900 | |||||||||
| Storage Class | 3 - Flammable liquids | |||||||||
| Hazard Classifications | Eye Irrit. 2 Flam. Liq. 3 STOT SE 3 |
|||||||||
| Hazardous Substances Data | 108-11-2(Hazardous Substances Data) | |||||||||
| Toxicity | LD50 orally in Rabbit: 2590 mg/kg LD50 dermal Rabbit 2884 mg/kg | |||||||||
| IDLA | 400 ppm | |||||||||
| REACH Registrations | Active | |||||||||
| NFPA 704 |
|
4-Methyl-2-pentanol price More Price(26)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 8.05804 | 4-Methyl-2-pentanol for synthesis | 108-11-2 | 100mL | $38.1 | 2026-04-30 | Buy |
| Sigma-Aldrich | 8.05804 | 4-Methyl-2-pentanol for synthesis | 108-11-2 | 1L | $71.4 | 2026-04-30 | Buy |
| Sigma-Aldrich | 109916 | 4-Methyl-2-pentanol 98% | 108-11-2 | 1l | $49.7 | 2026-04-30 | Buy |
| Sigma-Aldrich | 109916 | 4-Methyl-2-pentanol 98% | 108-11-2 | 4l | $110 | 2026-04-30 | Buy |
| TCI Chemical | M0386 | 4-Methyl-2-pentanol >98.0%(GC) | 108-11-2 | 25mL | $18 | 2026-04-30 | Buy |
4-Methyl-2-pentanol Chemical Properties, Uses, Production
Description
MIBC is a colorless liquid with a mild odor.The odor threshold is 0.52 ppm. Molecularweight 5 102.20; Specific gravity (H2O:1) 5 0.81; Boilingpoint 5 132.8℃; Freezing/Melting point 5 2 90℃; Vaporpressure 5 3 mmHg at 20℃; Flash point = 41℃. Theexplosive limits are LEL 5 1.0%; UEL 5 5.5%. HazardIdentification (based on NFPA-704 M Rating System):Health 2, Flammability 2, Reactivity 0. Slightly soluble inwater; solubility 5 2%.
Chemical Properties
colourless liquid
Chemical Properties
MIBC is a colorless liquid with a mild odor. The odor threshold is 0.52 ppm.
Uses
Solvent for dyestuffs, oils, gums, resins, waxes, nitrocellulose, and ethylcellulose; organic synthesis; froth flotation; brake fluids.
Uses
Solvent; organic syntheses; brake fluids
Uses
(^+)-4-Methyl-2-pentanol is employed as a solvent in organic synthesis, dyes and stains, natural resins and waxes. It is an additive to surface coatings. It finds applications in the manufacture of lube oil additives, zinc dialkyldithiophosphate, brake fluids. It is the precursor to some plasticizers and frother in mineral flotation. It acts as a corrosion inhibitor and also utilized in the characterization of volatile fraction of mono varietal wines and tar sand mining processes.
Production Methods
Methyl isobutyl carbinol is prepared commercially as a byproduct of the synthesis of methyl isobutyl ketone.
Synthesis Reference(s)
Journal of the American Chemical Society, 82, p. 3222, 1960 DOI: 10.1021/ja01497a062
Tetrahedron Letters, 25, p. 5897, 1984 DOI: 10.1016/S0040-4039(01)81714-7
General Description
A clear colorless liquid. Flash point 120°F. Less dense than water. Vapors heavier than air.
Air & Water Reactions
Flammable. Soluble in water.
Reactivity Profile
4-Methyl-2-pentanol is an alcohol. Flammable and/or toxic gases are generated by the combination of alcohols with alkali metals, nitrides, and strong reducing agents. They react with oxoacids and carboxylic acids to form esters plus water. Oxidizing agents convert them to aldehydes or ketones. Alcohols exhibit both weak acid and weak base behavior. They may initiate the polymerization of isocyanates and epoxides. 4-Methyl-2-pentanol is incompatible with strong oxidizers .
Hazard
Moderate fire risk, explosive limits in air 1– 5.5%. Eye and upper respiratory tract irritant, and central nervous system impairment.
Health Hazard
Vapor irritates eyes and nose; may cause anesthesia. Prolonged contact with liquid causes irritation and cracking of skin; also irritates eyes.
Fire Hazard
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.
Flammability and Explosibility
Flammable
Chemical Reactivity
Reactivity with Water: No reaction; Reactivity with Common Materials: No reaction; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.
Safety Profile
Moderately toxic by ingestion, skin contact, and intraperitoneal routes. Mildly toxic by inhalation. A skin and severe eye irritant. Inhalation of high concentrations can cause anesthesia. Flammable liquid when exposed to heat or flame; can react with oxidizing materials. A moderate explosion hazard when exposed to heat or flame. To fight fire, use alcohol foam. When heated to decomposition it emits acrid smoke and fumes.
Potential Exposure
MIBC is used as a solvent; in the formulation of brake fluids; as an intermediate in organic synthesis.
First aid
If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. Give large quantities of water and inducevomiting. Do not make an unconscious person vomit.
storage
Color Code—Red: Flammability Hazard: Store ina flammable liquid storage area or approved cabinet awayfrom ignition sources and corrosive and reactive materials.Prior to working with this chemical you should be trainedon its proper handling and storage. Before entering confinedspace where this chemical may be present, check to makesure that an explosive concentration does not exist. Methylamyl alcohol must be stored to avoid contact with peroxides, chlorates, perchlorates, permanganates, and nitratessince violent reactions occur. Store in tightly closed containers in a cool, well-ventilated area away from heat.Sources of ignition, such as smoking and open flames, areprohibited where methyl amyl alcohol is used, handled, orstored in a manner that could create a potential fire orexplosion hazard.
Shipping
UN2053Methyl isobutyl carbinol, Hazard Class: 3; Labels: 3-Flammable liquid
Purification Methods
Wash the 2-pentanol with aqueous NaHCO3, dry and distil it. Purify it further by converting it to the phthalate ester by adding 120mL of dry pyridine and 67g of phthalic anhydride per mole of alcohol, purifying the ester and steam distilling it in the presence of NaOH. The distillate is extracted with ether, and the extract is dried and fractionally distilled. [Levine & Walti J Biol Chem 94 367 1931, Beilstein 1 IV 1717.]
Incompatibilities
Vapor may form explosive mixture with air. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong acids, peroxysulfuric acid, strong bases, caustics, aliphatic amines; isocyanates. Contact with alkali metals produces hydrogen gas. Permissibl
Toxics Screening Level
The Initial Threshold Screening Level (ITSL) for methyl amyl alcohol is 1000 μg/m 3 based on an 8 hr. averaging time.
Waste Disposal
Incineration; other, more flammable solvent may be added.
4-Methyl-2-pentanol Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shanghai LanRun Chemical Co., Ltd. | 021-69515658 ; 69515628 13701998368; | longrunchem@163.com | China | 3776 | 50 |
| ZIBO LISHUO CHEMICAL | 13853320569 | z1184400177@163.com | China | 911 | 58 |
| Shanghai Aladdin Bio-Chem Technology Co.,LTD | 400-6206333 13167063860 | anhua.mao@aladdin-e.com | China | 29977 | 65 |
| Jinan Century Tongda Chemical Co., Ltd. | 13370556116 | 3350933950@qq.com | China | 356 | 58 |
| Hubei Xinjiecheng Chemical Technology Co., Ltd | 13554075426 | 1014723310@qq.com | China | 3000 | 58 |
| Shandong Hima Supply chain Management Co., LTD | 0533-13011607593; 13011607593 | 904987017@qq.com | China | 296 | 58 |
| Shandong Xuchen Chemical Technology | 15698059122 15698059122 | 15698059122@163.com | China | 1675 | 58 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| 3B Pharmachem (Wuhan) International Co.,Ltd. | 18930552037 | 3bsc@sina.com | China | 15813 | 69 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
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- Jun 29,2026
View Latest Price from 4-Methyl-2-pentanol manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-09-02 | 4-Methyl-2-pentanol
108-11-2
|
20kg | 99% | 20 tons | Qingdao RENAS Polymer Material Co., Ltd. | ||
 |
2026-05-28 | 4-Methyl-2-pentanol
108-11-2
|
$1.70 | 10kg | 99% | 10000kg | Hebei Chuanghai Biotechnology Co,.LTD | |
 |
2026-05-15 | 4-Methyl-2-pentanol
108-11-2
|
$1.50 | 1g | 99.0% Min | 100 Tons | Shaanxi Didu New Materials Co. Ltd |
-
- 4-Methyl-2-pentanol
108-11-2
- $0.00
- 99%
- Qingdao RENAS Polymer Material Co., Ltd.
-
- 4-Methyl-2-pentanol
108-11-2
- $1.70
- 99%
- Hebei Chuanghai Biotechnology Co,.LTD
-
- 4-Methyl-2-pentanol
108-11-2
- $1.50
- 99.0% Min
- Shaanxi Didu New Materials Co. Ltd
