2-Hydroxyisobutyric acid methyl ester

Abbreviation HBM
Another Name Methyl 2-hydroxy-2-methyl propionate
Methyl 2-hydroxyisobutyrate
Plant Niigata
Main Applications Solvent for electronic materials (EBR, RRC, BARC),
Ink cleaning solvent, Intermediate for agrochemical or medicine
Existing Chemical Substance No. (2)-1404


Chemical Formula (CH3)2C(OH)CO2CH3
Molecular Weight 118.13
Appearance Colorless transparent liquid
Odor Ester smell
Specific Gravity (liquid 25℃/4℃) 1.03(20℃)
Boiling Point (℃ 760mmHg) 137
Freezing Point (℃ 760mmHg) -41
Flash Point (℃ Tagliabue (Tag) Closed Cup) 45
Ignition Temperature (℃) 400
Flammability Limits (vol%) Lowest limt 2.0 (lower explosion limit)
Vapour Pressure (mmHg 25℃) 2.7
Viscosity (CP 25℃) 2.82
Solubility Readily soluble in water and alcohol
Stable in normal handling conditions

Applicable Laws

Industrial Safety and Health Law Inflammable substance
High Pressure Gas
Fire Service Law Class 4 Petroleum No.2
Water soluble Specified volume:2,000L
Poisonous and Deleterious Substances Control Law
Law on the Prevention of Marine Pollution and Maritime Disaster
Ship Safety Law Inflammable liquids
Civil Aeronautics Law Inflammable liquid
Other Major Applicable Laws

Classification of Hazard

Classification Inflammable liquid
Hazardous Fairly inflammable liquid
Harmful Very low acute toxicity

Product Standard

Purity (wt%) No less than 99.5
Water Content (wt%) 0.2 or less
Free Acid (wt% HBA equivalent) 0.2 or less

Inquiries Concerning Products

Green Energy & Chemicals Business Sector
C1 Chemicals Division
Organic Chemicals Department 
TEL:+81-3-3283-4788 / FAX:+81-3-3214-0930