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LC3071 Isopentanoic acid

for synthesis


Order number Packaging Quantity Price €
AC30071 Glass bottle 5 ml 10.89
AC30071 Glass bottle 250 ml 11.88
AC30071 Glass bottle 1 L 38.93


Product information
Synonyms 3-Methylbutyric acid
Hill Formula C5H10O2
Chemical formula (CH3)2CHCH2COOH
HS Code 2915 60 90
EC number 207-975-3
Molar mass 102.13 g/mol
CAS number 503-74-2


Chemical and physical data
Ignition temperature 440 °C
Solubility 25 g/l (20 °C)
Melting point -26 °C
Molar mass 102.13 g/mol
Density 0.93 g/cm3 (20 °C)
pH value 3 (10 g/l, H2O, 20 °C)
Boiling point 176 °C (1013 hPa)
Vapor pressure 0.5 hPa (20 °C)
Explosion limit 1.5 – 6.8 %(V)
Flash point 70 °C
Refractive index 1.4034 (20 °C, 589 nm)


Safety information according to GHS
Hazard Statement(s) H290: May be corrosive to metals.
H314: Causes severe skin burns and eye damage.
Precautionary Statement(s) P280: Wear protective gloves/protective clothing/eye protection/face protection.
P301 + P330 + P331: IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Signal Word Danger
Hazard Pictogram(s)
Storage class 8 A Combustible substances, corrosive
WGK WGK 1 slightly water endangering
Disposal 4
Liquid organic acids or solutions should be diluted, if necessary, and carefully neutralized with sodium hydrogen carbonate (Cat. No. 106323) or with sodium hydroxide (Cat. No 106462). Before filling into container D, check the pH with pH universal indicator strips (Cat. No. 109535).


Safety information
R Phrase R 34
Causes burns.
S Phrase S 26-36/37/39-45
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
Categories of danger corrosive
Hazard Symbol Corrosive


Toxicological data
Declaration (transport by sea) IMDG-Code UN 3265 CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S.(ISOPENTANOIC ACID), 8, II, Segregation Group: 1 (Acids)


Toxicological data
LD 50 oral LD50 rat > 2000 mg/kg
LD 50 dermal LD50 rabbit > 3000 mg/kg


Assay (GC, area%) ≥ 99 %
Water (K. F.) ≤ 0.2 %
Density (d 20 °C/ 4 °C) 0.925 – 0.926
Identity (IR) passes test


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