2-Ethylbutyric acid(CAS#88-09-5)

Molecular Formula	C6H12O2
Molar Mass	116.16
Density	0.92 g/mL at 25 °C (lit.)
Melting Point	-16–13 °C (lit.)
Boling Point	99-101 °C/18 mmHg (lit.)
Flash Point	190°F
JECFA Number	257
Water Solubility	18 g/L (20 ºC)
Solubility	18g/l
Vapor Presure	0.08 mm Hg ( 20 °C)
Appearance	Transparent liquid
Color	Colorless to Almost colorless
Merck	14,3110
BRN	1098634
pKa	pKa: 4.751(25°C)
PH	3 (18g/l, H2O, 20℃)
Storage Condition	Store below +30°C.
Explosive Limit	1.4%(V)
Refractive Index	n20/D 1.413(lit.)
MDL	MFCD00002670
Physical and Chemical Properties	Colorless volatile liquid, a light cheese and mildew smell, there is a sour taste. Boiling point 121.0 °c or 99 °c (2400Pa), vapor pressure 10.67 (0.08mmHg,20 °c), flash point 25.6 °c, melting point -9.3 °c. Miscible in ethanol and ether, 1 ml dissolved in 65ml water.
Use	For the manufacture of esters, also used as dye intermediates

Product Detail

Risk Codes	R21 – Harmful in contact with skin R36/37/38 – Irritating to eyes, respiratory system and skin. R34 – Causes burns
Safety Description	S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 – Wear suitable protective clothing, gloves and eye/face protection. S45 – In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36 – Wear suitable protective clothing.
UN IDs	UN 2810 6.1/PG 3
WGK Germany	1
RTECS	ET1400000
TSCA	Yes
HS Code	29159080
Hazard Class	8
Packing Group	III
Toxicity	LD50 orally in Rabbit: 2200 mg/kg LD50 dermal Rabbit 478 mg/kg