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) |