TRANS-2-BUTENOIC ACID

Name	Croton reference
Synonyms	(e)-crotonicaci Croton reference (e)-crotonicacid (E)-Crotonic acid (e)-2-butenoicaci TRANS-CROTONIC ACID (2E)-2-Butenoic acid TRANS-2-BUTENOIC ACID
CAS	107-93-7
EINECS	203-533-9
InChIKey	LDHQCZJRKDOVOX-NSCUHMNNSA-N

Molecular Formula	C4H6O2
Molar Mass	86.09
Density	1.027 g/mL at 25 °C (lit.)
Melting Point	70-72 °C (lit.)
Boling Point	180-181 °C (lit.)
Flash Point	190°F
JECFA Number	1371
Water Solubility	94 g/L (25 ºC)
Solubility	H2O: soluble
Vapor Presure	0.19 mm Hg ( 20 °C)
Vapor Density	2.97 (vs air)
Appearance	Powder
Color	White to light yellow
Merck	14,2597
BRN	1719943
pKa	4.69(at 25℃)
PH	3 (10g/l, H2O, 20℃)
Storage Condition	Store below +30°C.
Explosive Limit	15.1%, 171°F
Refractive Index	1.4228
Physical and Chemical Properties	monoclinic needle-like or prismatic crystals. Soluble in ethanol, ether and acetone.

Risk Codes	R21/22 - Harmful in contact with skin and if swallowed. R34 - Causes burns R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R36/37/38 - Irritating to eyes, respiratory system and skin.
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.) S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S37/39 - Wear suitable gloves and eye/face protection
UN IDs	UN 2823 8/PG 3
WGK Germany	3
RTECS	GQ2900000
HS Code	29161940
Hazard Class	8
Packing Group	III
Toxicity	LD50 orally in rats: 1.0 g/kg (Smyth, Carpenter)

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Tel: 18301782025
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Mobile: 18021002903
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