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Isobutanol (CAS 78-83-1) is used as a solvent and intermediate with a different isomer profile than n-butanol. Keep CAS identity strict on PO/COA/SDS to avoid grade mix-ups.
isobutanol(IBA) (CAS 78-83-1) is supplied by SKYSEVEN Chemical for global industrial buyers. Typical demand includes solvent and coalescent in waterborne coatings and inks. When sourcing isobutanol(IBA) from China, buyers should specify purity, packing, Incoterms and destination port, and request COA plus SDS before shipment. SKYSEVEN Chemical responds to commercial inquiries within 24 hours (Shanghai, CST).
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: 78-83-1
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: Alcohol Ether
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isobutanol (IBA), chemical formula C4H10O, is a colorless and transparent liquid with a special smell, molecular weight 74.12, slightly soluble in water, but soluble in ethanol, ether and other organic solvents. Isobutanol is an important organic synthetic raw material, widely used in the manufacture of petroleum additives, antioxidants, plasticizers, synthetic rubber and artificial musk and other fields. At the same time, it is also used for the purification of chemical reagents such as strontium, barium and lithium salts, and as a solvent and extractant in chemical analysis. The versatility of isobutanol makes it an indispensable raw material in many industrial fields and has a wide range of applications.
(1) Organic synthesis raw materials and solvents: Isobutanol is an important organic synthesis raw material, which can be used to synthesize a variety of organic compounds, such as benzene sulfonic acid, isobutyl acetate, acrolein, chlorpromazine and other drugs. At the same time, it is also a high-grade solvent that can dissolve a variety of organic substances, which is used to improve the softness and fluidity of the product, reduce the viscosity, and improve the dispersibility of the precipitate.
(2) Edible Spices and Additives: Isobutanol is specified as permitted by GB 2760-2014, with code S0005 and FEMA number 2179. In addition, it can also be used as a gasoline additive for spark ignition engines to help prevent carburetor icing.
(3) Petroleum and chemical reagent manufacturing: Isobutanol can be used to manufacture petroleum additives, antioxidants, 2,6-di-tert-butyl-p-cresol and other chemicals. At the same time, it can also be used to extract pure strontium, barium and lithium salt chemical reagents, as well as for calcium, strontium, barium, sodium, potassium, lithium, silver, chlorine and phosphite determination.
(4) Coating and rubber manufacturing: Isobutanol is an important raw material for the manufacture of isobutyl acetate, which is mainly used for the production of paint and similar coatings. In addition, isobutanol can also be used in the manufacture of plasticizers, synthetic rubber, artificial musk, etc., in rubber, plastics and other industries have a wide range of applications.
(5) Analytical reagents and extractants: Isobutanol can be used as analytical reagents, chromatographic reagents and extractants, and plays an important role in chemical analysis, thin layer chromatography and other fields.
(6) Other applications: Isobutanol can also be used as a cosolvent for cellulose nitrate, as well as solvents for ethyl cellulose, polyvinyl butyral, various oils, rubber and natural resins. In addition, it has potential fuel uses, and may replace gasoline as a fuel for internal combustion engines in the future.
1. Packing: barreled, scattered water
2. Logistics: car transportation, shipping
3. Payment request: EXW/FOB/FCA/CFR only accepted
| CAS Number | 78-83-1 |
|---|---|
| Molecular Formula | C4H10O |
| Molecular Weight | 74.122 |
| Melting Point | -108℃ |
| Boiling Point | 108℃ |
| Density | 0.802 |
| Flash Point | 28℃ |
| Refractive Index | 1.3945-1.3765 |
| Vapor Pressure | 8mmHg(20°C) |
| Catalog packing | 0 / 78 / 79 / 80 / 81 |
isobutanol(IBA) (CAS 78-83-1, formula C4H10O) is traded as an industrial chemical feedstock/solvent. B2B buyers in 2026 typically lock identity by CAS, request lot COA + SDS before PO, and specify packing (drum/IBC/ISO tank) plus Incoterm on the RFQ. SKYSEVEN Chemical (Shanghai) targets commercial replies within 24 hours (CST, UTC+8). Cross-check identity data in PubChem / NIST / CAS Common Chemistry before first import.
Sources & references:
Next step: Request a quote for CAS 78-83-1 · RFQ template · WhatsApp +86-191-1728-8062
Typical pattern: buyer specifies CAS 78-83-1 explicitly after a prior n-butanol confusion event, with dual language SDS request.
Last reviewed: 2024-12-12 · By SKYSEVEN Chemical Technical Team · Authors · Trust center · Research · Compliance
What is isobutanol(IBA) used for?
isobutanol(IBA) is commonly used for: Solvent and coalescent in waterborne coatings and inks; Coupling agent in cleaners and industrial degreasers; Intermediate in glycol ether acetate synthesis. SKYSEVEN Chemical supplies industrial-grade isobutanol(IBA) for global B2B buyers.
What is the CAS number of isobutanol(IBA)?
The CAS Registry Number of isobutanol(IBA) is 78-83-1. Verify with free CAS lookup: cnchemshop.com/tools/cas-lookup.html or /cas/78-83-1.html.
What is the molecular formula of isobutanol(IBA)?
The molecular formula of isobutanol(IBA) is C4H10O. Molecular weight is approximately 74.122.
How to buy isobutanol(IBA) from China?
Request a quote on cnchemshop.com for isobutanol(IBA) (CAS 78-83-1). State purity, packing, quantity and destination port. SKYSEVEN Chemical provides COA/SDS and aims to reply within 24 hours (CST, UTC+8).
What documents are provided with isobutanol(IBA) shipments?
Standard export documents for isobutanol(IBA) may include Certificate of Analysis (COA), commercial invoice, packing list, and MSDS/SDS upon request. Specific certificates of origin can be arranged for destination customs.
What is the typical packing for industrial isobutanol(IBA)?
Industrial isobutanol(IBA) is commonly packed in drums, IBC totes, or bulk ISO tanks depending on product type and order size. Confirm available packing when you request a quote.
What are the key physical properties of isobutanol(IBA)?
Key properties of isobutanol(IBA) include melting point -108℃, boiling point 108℃, density 0.802. Always verify against the latest COA and SDS for your lot.
Can I RFQ “butanol” only?
No—use full name + CAS to avoid isomer errors.
| Chinese name | isobutanol |
| English Name | 2-Methyl-1-propanol |
| Alias | Isobutyl alcohol isobutyl alcohol natural isobutyl alcohol isopropyl methanol 2-methyl-1-propanol 1-hydroxy-3-methylpropane |
| English alias | IBA FEMA 2179 ISOBUTANOL Isobutanol Iso-Butanol Iso Butanol Isobutyl alcohol ISOBUTYL ALCOHOL ISOPROPYL CARBINOL 2-Methyl-1-propanol ISO-PROPYL BARBINOL Natural Isobutyl Alcohol NATURAL ISO BUTYL ALCOHOL ISOBUTANOL, 2-METHYL-1-PROPANOL |
| CAS | 78-83-1 |
| EINECS | 201-148-0 |
| Chemical formula | C4H10O |
| molecular weight | 74.12 |
| InChI | InChI=1/C4H10O/c1-4(2)3-5/h4-5H,3H2,1-2H3 |
| InChIKey | ZXEKIIBDNHEJCQ-UHFFFAOYSA-N |
| Density | 0.803 g/mL at 25°C (lit.) |
| Melting Point | -108°C (lit.) |
| Boiling Point | 108°C (lit.)108°C |
| Flash Point | 82 °F |
| water soluble | 95 g/L (20 °C) |
| Vapor pressure | 8mm Hg ( 20 °C) |
| steam density | 2.55 (vs air) |
| JECFA Number | 251 |
| Solubility | Water: 70g/L at 20°C |
| refractive index | n20/D 1.396(lit.) |
| acidity coefficient | >14 (Schwarzenbach et al., 1993) |
| PH value | 7 (80g/l, H2O, 20℃) |
| Storage conditions | Store at +5°C to +30°C. |
| Stability | Stable. Flammable. Incompatible with aluminum, a strong oxidant. |
| Appearance | Solid |
| Color | APHA: ≤10 |
| Smell | Slightly suffocating; nonresidual alcoholi |
| Maximum wavelength (λmax) | ['λ: 260 nm Amax: 0.10', , 'λ: 280 nm Amax: 0.06'] |
| Merck | 14,5131 |
| BRN | 1730878 |
| Explosion limit value | 1.5-12%(V) |
| Exposure Limits | TWA 300 mg/m3 (100 ppm) NIOSH, 150mg/m3 (50 ppm) (ACGIH); IDLH 8000 ppm. |
| physicochemical properties | Colorless transparent liquid. There is a special smell. Soluble in about 20 times of water, miscible with ethanol and ether. |
| Dangerous Goods Signs | Xi-Irritant Items |
| Risk Terms | R10-Flammable. R37/38-Irritation of respiratory system and skin + B52. R41-Serious injury to eyes. R67-Vapor may cause drowsiness and dizziness. |
| Safety terminology | S13-Keep away from food, beverages and animal feed. S26-After contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39-Wear appropriate gloves and goggles or mask. S46-If swallowed, seek medical advice immediately and show the container or label. S7/9- |
| Dangerous Goods Transport No. | UN 1212 3/PG 3 |
| WGK Germany | 1 |
| RTECS | NP9625000 |
| TSCA | Yes |
| Customs Number | 29051990 |
| Hazard Class | 3 |
| Packing Group | III |
| Upstream raw materials | propylene hydrogen isobutyraldehyde fusel oil |
| Downstream Products | isobutyl methacrylate isobutyl acetoacetate isobutyl acetate isobutyl isobutyronitrile dibutyl phthalate dibutyl phthalate diisobutyl phthalate |
Colorless transparent liquid with special smell. It is miscible with ethanol and ether and soluble in about 20 parts of water. Flammable, its vapor and air can form an explosive mixture, fire, high heat caused by combustion explosion. Decomposition by heat releases toxic gases. Can react strongly with oxidants.
Propylene and synthesis gas as raw materials, through the carbonyl synthesis of normal, isobutyraldehyde, after the removal of the catalyst, hydrogenation into normal, isobutanol, after dehydration separation, respectively, the finished normal, isobutanol. Alternatively, isobutyl aldehyde is subjected to a liquid phase hydrogenation reaction under the catalysis of nickel to produce isobutyl alcohol. It can also be recovered from isobutyl oil produced as a by-product of a methanol plant, and isobutyl oil is dehydrated by demethanolization, salting out, and then azeotropic distillation to obtain isobutanol.
Reagents for the determination of calcium, strontium, barium, sodium, potassium, lithium, silver, chloride and phosphites. Chromatographic analysis of reference substances. It is also a common solvent and extraction agent. Used to extract lithium chloride from a mixture of lithium chloride with sodium chloride or potassium chloride. Used in the manufacture of petroleum additives, antioxidants, 2,6-= tert-butyl p-cresol, isobutyl acetate (coating solvent), plasticizers, synthetic rubber, artificial musk; fruit essential oils and synthetic drugs.
Rat oral LD50: 2460 mg/kg; Rabbit percutaneous LDso: 3400 mg/kg. Higher concentrations of vapors are irritating to the eyes, skin, mucous membranes, and upper respiratory tract. Store in a cool, ventilated warehouse. Keep away from fire and heat source. The temperature of the warehouse should not exceed 30 ℃. Keep container sealed. It should be stored separately from oxidants, acids, etc., and mixed storage is not allowed.
Have Doubts Regarding This Product ?
Carbon oxides Combustible.
Vapors are heavier than air and may spread along floors. Forms explosive mixtures with air at elevated temperatures.
Development of hazardous combustion gases or vapours possible in the event of fire.
Stay in danger area only with self-contained breathing apparatus. Prevent skin contact by keeping a safe distance or by wearing suitable protective clothing.
Remove container from danger zone and cool with water. Prevent fire extinguishing water from contaminating surface water or the ground water system.
Advice for non-emergency personnel: Do not breathe vapors, aerosols. Avoid substance contact. Ensure adequate ventilation. Keep away from heat and sources of ignition.
Evacuate the danger area, observe emergency procedures, consult an expert. For personal protection see section 8.
Do not let product enter drains. Risk of explosion.
Cover drains. Collect, bind, and pump off spills. Observe possible material restrictions (see sections 7 and 10). Take up with liquid-absorbent material (e.g. Chemizorb? ). Dispose of properly. Clean up affected area.
For disposal see section 13.
Avoid generation of vapours/aerosols.
Keep away from open flames, hot surfaces and sources of ignition.Take precautionary measures against static discharge.
Immediately change contaminated clothing. Apply preventive skin protection. Wash hands and face after working with substance.
For precautions see section 2.2.
Keep container tightly closed in a dry and well-ventilated place. Keep away from heat and sources of ignition.
Apart from the uses mentioned in section 1.2 no other specific uses are stipulated
Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Tightly fitting safety goggles
Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands.
The selected protective gloves have to satisfy the specifications of Regulation (EU) 2016/425 and the standard EN 374 derived from it.
Full contact
Material: Nitrile rubber
Minimum layer thickness: 0,11 mm Break through time: 480 min
Material tested:Dermatril? (KCL 740 / Aldrich Z677272, Size M)
Splash contact Material: Nitrile rubber
Minimum layer thickness: 0,11 mm Break through time: 480 min
Material tested:Dermatril? (KCL 740 / Aldrich Z677272, Size M)
data source: KCL GmbH, D-36124 Eichenzell, phone +49 (0)6659 87300, e-mail sales@kcl.de, test method: EN374
If used in solution, or mixed with other substances, and under conditions which differ from EN 374, contact the supplier of the EC approved gloves. This recommendation is advisory only and must be evaluated by an industrial hygienist and safety officer familiar with the specific situation of anticipated use by our customers. It should not be construed as offering an approval for any specific use scenario.
Flame retardant antistatic protective clothing.
Recommended Filter type: Filter A (acc. to DIN 3181) for vapours of organic compounds
The entrepeneur has to ensure that maintenance, cleaning and testing of respiratory protective devices are carried out according to the instructions of the producer.
These measures have to be properly documented.
Do not let product enter drains. Risk of explosion.
Surface tension 69,7 mN/m at 20 °C
Relative vapor density
2,55
Vapor/air-mixtures are explosive at intense warming.
The product is chemically stable under standard ambient conditions (room temperature) . Stable
No data available
Heating.
Strong oxidizing agents, Acid chlorides, Acid anhydridesStrong oxidizing agents, Acid chlorides, Acid anhydrides
In the event of fire: see section 5
1.430 mg/l - 96 h Remarks: (ECHA)
static test EC50 - Daphnia pulex (Water flea) - 1.100 mg/l - 48 h Remarks: (ECHA)
(OECD Test Guideline 201)
Biodegradability aerobic - Exposure time 28 d
Result: 70 - 80 % - Readily biodegradable. (OECD Test Guideline 301D)
Chemical Oxygen Demand (COD)
2.600 mg/g
Remarks: (External MSDS)
Theoretical oxygen demand
2.600 mg/g Remarks: (Lit.)
Ratio BOD/ThBOD 64 %
Remarks: (Lit.)
No data available
No data available
This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher.
Additional ecological information
No data available
Butyl alcohols may form explosive mixture with air. In all cases they are Incompatible with oxidizers. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides.
See www.retrologistik.com for processes regarding the return of chemicals and containers, or contact us there if you have further questions.
Waste Disposal
Incineration, or bury absorbed waste in an approved land fill.
ADR/RID: 3 IMDG: 3 IATA: 3
ADR/RID: III IMDG: III IATA: III
ADR/RID: no IMDG Marine pollutant: no IATA: no
No data available
【1】CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
【2】ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
【3】ECHA - European Chemicals Agency, website: https://echa.europa.eu/
【4】eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
【5】ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
【6】Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
【7】HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
【8】IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
【9】IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
【10】Sigma-Aldrich, website: https://www.sigmaaldrich.com/
The information in this MSDS is only applicable to the specified product, unless otherwise specified, it is not applicable to the mixture of this product and other substances. This MSDS only provides information on the safety of the product for those who have received the appropriate professional training for the user of the product. Users of this MSDS must make independent judgments on the applicability of this SDS. The authors of this MSDS will not be held responsible for any harm caused by the use of this MSDS.
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